casacore
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Handle class for a table column expression tree. More...
#include <ExprNode.h>
Public Member Functions | |
TableExprNode () | |
TableExprNode | operator+ () const |
Unary operators on numeric TableExprNode's. More... | |
TableExprNode | operator- () const |
TableExprNode | operator! () const |
Unary NOT-operator on boolean TableExprNode's. More... | |
TableExprNode | operator~ () const |
Unary bitwise negate-operator on integer TableExprNode's. More... | |
TableExprNode | in (const TableExprNodeSet &set, const TaQLStyle &=TaQLStyle(0)) const |
TableExprNode | useUnit (const Unit &unit) const |
Use a unit for the given TableExprNode. More... | |
TableExprNode (const Bool &value) | |
Constructors to convert a constant value to a TableExprNode. More... | |
TableExprNode (const Int64 &value) | |
TableExprNode (const Int &value) | |
TableExprNode (const uInt &value) | |
TableExprNode (const Float &value) | |
TableExprNode (const Double &value) | |
TableExprNode (const Complex &value) | |
TableExprNode (const DComplex &value) | |
TableExprNode (const String &value) | |
TableExprNode (const std::string &value) | |
TableExprNode (const char *) | |
TableExprNode (const Regex &value) | |
TableExprNode (const StringDistance &value) | |
TableExprNode (const TaqlRegex &value) | |
TableExprNode (const MVTime &value) | |
TableExprNode (const Array< Bool > &value) | |
TableExprNode (const Array< uChar > &value) | |
TableExprNode (const Array< Short > &value) | |
TableExprNode (const Array< uShort > &value) | |
TableExprNode (const Array< Int > &value) | |
TableExprNode (const Array< uInt > &value) | |
TableExprNode (const Array< Float > &value) | |
TableExprNode (const Array< Double > &value) | |
TableExprNode (const Array< Complex > &value) | |
TableExprNode (const Array< DComplex > &value) | |
TableExprNode (const Array< String > &value) | |
TableExprNode (const Array< MVTime > &value) | |
TableExprNode (TableExprNodeRep *) | |
Construct a node from a node representation. More... | |
TableExprNode (const TableExprNode &) | |
copy constructor (reference semantics). More... | |
TableExprNode & | operator= (const TableExprNode &) |
Assignment (reference semantics). More... | |
~TableExprNode () | |
The destructor deletes all the underlying TableExprNode objects,. More... | |
Bool | isNull () const |
Does the node contain no actual node? More... | |
void | applySelection (const Vector< uInt > &rownrs) |
Re-create the column object for a selection of rows. More... | |
const Unit & | unit () const |
Get the unit of the expression. More... | |
DataType | dataType () const |
Get the data type of the expression. More... | |
Bool | isScalar () const |
Is the expression a scalar? More... | |
uInt | nrow () const |
Get the number of rows in the table associated with this expression. More... | |
Bool | isResultDefined (const TableExprId &id) const |
Is the result value defined? Normally it is, but not for a column with an undefined value. More... | |
DataType | getColumnDataType () const |
Get the data type for doing a getColumn on the expression. More... | |
Bool | checkTableSize (const Table &table, Bool canBeConst) const |
Check if tables used in expression have the same number of rows as the given table. More... | |
void | adaptUnit (const Unit &) |
Adapt the unit of the expression to the given unit (if not empty). More... | |
Static Public Member Functions | |
static TableExprNode | newColumnNode (const Table &tab, const String &name, const Vector< String > &fieldNames) |
Create a column node on behalf of the Table class. More... | |
static TableExprNode | newKeyConst (const TableRecord &, const Vector< String > &fieldNames) |
Create a TableExprNodeConst for a table keyword (which is handled as a constant). More... | |
static void | throwInvDT (const String &message) |
Throw invalid data type exception. More... | |
static TableExprNode | newFunctionNode (TableExprFuncNode::FunctionType, const TableExprNodeSet &set, const Table &table, const TaQLStyle &=TaQLStyle(0)) |
Create function node of the given type with the given arguments. More... | |
static TableExprNode | newFunctionNode (TableExprFuncNode::FunctionType, const TableExprNode &node) |
static TableExprNode | newFunctionNode (TableExprFuncNode::FunctionType, const TableExprNode &node1, const TableExprNode &node2) |
static TableExprNode | newFunctionNode (TableExprFuncNode::FunctionType, const TableExprNode &node1, const TableExprNode &node2, const TableExprNode &node3) |
static TableExprNode | newFunctionNode (TableExprFuncNode::FunctionType, const TableExprNode &array, const TableExprNodeSet &axes) |
static TableExprNode | newFunctionNode (TableExprFuncNode::FunctionType, const TableExprNode &array, const TableExprNode &node, const TableExprNodeSet &axes) |
static TableExprNode | newUDFNode (const String &name, const TableExprNodeSet &set, const Table &table, const TaQLStyle &=TaQLStyle(0)) |
Create a user defined function node. More... | |
static TableExprNode | newConeNode (TableExprFuncNode::FunctionType, const TableExprNodeSet &set, uInt origin=0) |
Create cone function node of the given type with the given arguments. More... | |
static TableExprNode | newConeNode (TableExprFuncNode::FunctionType, const TableExprNode &node1, const TableExprNode &node2) |
static TableExprNode | newConeNode (TableExprFuncNode::FunctionType, const TableExprNode &node1, const TableExprNode &node2, const TableExprNode &node3) |
static TableExprNode | newRownrNode (const Table &table, uInt origin) |
Create rownumber() function node. More... | |
static TableExprNode | newRowidNode (const Table &table) |
Create rowid() function node. More... | |
static TableExprNode | newRandomNode (const Table &table) |
Create rand() function node. More... | |
static TableExprNode | newArrayPartNode (const TableExprNode &arrayNode, const TableExprNodeSet &indices, const TaQLStyle &=TaQLStyle(0)) |
Create ArrayElement node for the given array with the given index. More... | |
Private Member Functions | |
TableExprNodeRep * | newPlus (TableExprNodeRep *right) const |
Construct a new node for the given operation. More... | |
TableExprNodeRep * | newMinus (TableExprNodeRep *right) const |
TableExprNodeRep * | newTimes (TableExprNodeRep *right) const |
TableExprNodeRep * | newDivide (TableExprNodeRep *right) const |
TableExprNodeRep * | newModulo (TableExprNodeRep *right) const |
TableExprNodeRep * | newBitAnd (TableExprNodeRep *right) const |
TableExprNodeRep * | newBitOr (TableExprNodeRep *right) const |
TableExprNodeRep * | newBitXor (TableExprNodeRep *right) const |
TableExprNodeRep * | newEQ (TableExprNodeRep *right) const |
TableExprNodeRep * | newNE (TableExprNodeRep *right) const |
TableExprNodeRep * | newGE (TableExprNodeRep *right) const |
TableExprNodeRep * | newGT (TableExprNodeRep *right) const |
TableExprNodeRep * | newIN (TableExprNodeRep *right, const TaQLStyle &) const |
TableExprNodeRep * | newOR (TableExprNodeRep *right) const |
TableExprNodeRep * | newAND (TableExprNodeRep *right) const |
Static Private Member Functions | |
static PtrBlock< TableExprNodeRep * > | convertBlockTEN (Block< TableExprNode > &nodes) |
convert Block of TableExprNode to PtrBlock of TableExprNodeRep*. More... | |
Private Attributes | |
TableExprNodeRep * | node_p |
The actual (counted referenced) representation of a node. More... | |
Handle class for a table column expression tree.
Public interface
TableExprNode represents a node in the tree reflecting a table select expression.
TableExprNode is the class to store a table select expression, which allows to select rows from the table. The selected rows form a table which is a view of the original table.
TableExprNode is a handle class for the counted referenced class TableExprNodeRep. Classes (like TableExprNodePlusXX) derived from TableExprNodeRep hold the individual nodes in the expression, i.e. the operators and operands. The nodes form a binary tree reflecting the expression. E.g. the expression 2*COLUMN results in the node TableExprNodeTimes with its children TableExprNodeConst and TableExprNodeColumn. Constant subexpressions (like 2*3) are evaluated immediately and only the result is stored as a node.
There are a few TableExprNode constructors taking a constant scalar or array. In this way constant value are automatically converted to the appropriate TableExprNodeConst object.
The derived classes also reflect the data type of the node. Data types Bool, Double, DComplex and String are used. Char, uChar, Short, uShort, Int, uInt and float are converted to Double and Complex to DComplex. Binary operators +, -, *, /, %, &, }, ^, ==, >=, >, <, <= and != are recognized. Also &&, ||, parentheses and unary +, -, ~ and ! are recognized. For strings the binary operator + can also be used. The operators have the normal C++ precedence. Furthermore functions (like sin, max, ceil) can be used in an expression.
Operator() can be used to take a slice from an array.
The Table function col has to be used to create a TableExprNode object for a column in the table. The Table operator() can be used the do the actual selection from the top TableExprNode object.
Having TableExprNode as a handle class makes it possible to handle temporary objects created by the compiler in a smooth way. TableExprNode and its derivations allow to store an expression before actually evaluating it. This also allows the classes to be used by the table expression parser defined in TableParse and TableGram.
For each operator a special derived class is implemented. Another approach could have been to store the operator as a flag and switch on that. However, that causes extra overhead and the C++ virtual function mechanism is the designed for these purposes.
Definition at line 578 of file ExprNode.h.
casacore::TableExprNode::TableExprNode | ( | ) |
casacore::TableExprNode::TableExprNode | ( | const Bool & | value | ) |
Constructors to convert a constant value to a TableExprNode.
The constructor for char* is also supported to convert a character-array to a string, since a two step conversion is not done automatically.
casacore::TableExprNode::TableExprNode | ( | const Int64 & | value | ) |
casacore::TableExprNode::TableExprNode | ( | const Int & | value | ) |
casacore::TableExprNode::TableExprNode | ( | const uInt & | value | ) |
casacore::TableExprNode::TableExprNode | ( | const Float & | value | ) |
casacore::TableExprNode::TableExprNode | ( | const Double & | value | ) |
casacore::TableExprNode::TableExprNode | ( | const Complex & | value | ) |
casacore::TableExprNode::TableExprNode | ( | const DComplex & | value | ) |
casacore::TableExprNode::TableExprNode | ( | const String & | value | ) |
casacore::TableExprNode::TableExprNode | ( | const std::string & | value | ) |
casacore::TableExprNode::TableExprNode | ( | const char * | ) |
casacore::TableExprNode::TableExprNode | ( | const Regex & | value | ) |
casacore::TableExprNode::TableExprNode | ( | const StringDistance & | value | ) |
casacore::TableExprNode::TableExprNode | ( | const TaqlRegex & | value | ) |
casacore::TableExprNode::TableExprNode | ( | const MVTime & | value | ) |
casacore::TableExprNode::TableExprNode | ( | const Array< Complex > & | value | ) |
casacore::TableExprNode::TableExprNode | ( | const Array< DComplex > & | value | ) |
casacore::TableExprNode::TableExprNode | ( | TableExprNodeRep * | ) |
Construct a node from a node representation.
casacore::TableExprNode::TableExprNode | ( | const TableExprNode & | ) |
copy constructor (reference semantics).
casacore::TableExprNode::~TableExprNode | ( | ) |
The destructor deletes all the underlying TableExprNode objects,.
void casacore::TableExprNode::adaptUnit | ( | const Unit & | ) |
Adapt the unit of the expression to the given unit (if not empty).
Referenced by isResultDefined().
Re-create the column object for a selection of rows.
Nothing is done if the node does not represent a column object.
Definition at line 893 of file ExprNode.h.
References casacore::TableExprNodeRep::applySelection(), and node_p.
Check if tables used in expression have the same number of rows as the given table.
Referenced by isResultDefined().
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convert Block of TableExprNode to PtrBlock of TableExprNodeRep*.
Referenced by isResultDefined().
DataType casacore::TableExprNode::dataType | ( | ) | const |
Get the data type of the expression.
Currently the only possible values are TpBool, TpInt, TpDouble, TpDComplex, TpString, and TpOther. The latter is returned for a date or regex.
Referenced by unit().
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Get a value for this node in the given row.
These functions are implemented in the derived classes and will usually invoke the get in their children and apply the operator on the resulting values.
Definition at line 1135 of file ExprNode.h.
References casacore::TableExprNodeRep::getBool(), and node_p.
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Definition at line 1137 of file ExprNode.h.
References casacore::TableExprNodeRep::getInt(), and node_p.
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Definition at line 1139 of file ExprNode.h.
References casacore::TableExprNodeRep::getDouble(), and node_p.
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Definition at line 1141 of file ExprNode.h.
References casacore::TableExprNodeRep::getDComplex(), and node_p.
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Definition at line 1143 of file ExprNode.h.
References casacore::TableExprNodeRep::getString(), and node_p.
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Definition at line 1145 of file ExprNode.h.
References casacore::TableExprNodeRep::getRegex(), and node_p.
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Definition at line 1147 of file ExprNode.h.
References casacore::TableExprNodeRep::getDate(), and node_p.
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Definition at line 1149 of file ExprNode.h.
References casacore::TableExprNodeRep::getArrayBool(), and node_p.
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Definition at line 1152 of file ExprNode.h.
References casacore::TableExprNodeRep::getArrayInt(), and node_p.
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Definition at line 1155 of file ExprNode.h.
References casacore::TableExprNodeRep::getArrayDouble(), and node_p.
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Definition at line 1158 of file ExprNode.h.
References casacore::TableExprNodeRep::getArrayDComplex(), and node_p.
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Definition at line 1161 of file ExprNode.h.
References casacore::TableExprNodeRep::getArrayString(), and node_p.
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Definition at line 1164 of file ExprNode.h.
References casacore::TableExprNodeRep::getArrayDate(), and node_p.
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Definition at line 1177 of file ExprNode.h.
References casacore::TableExprNodeRep::getArrayBool(), and node_p.
Referenced by isResultDefined().
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Definition at line 1183 of file ExprNode.h.
References casacore::TableExprNodeRep::getArrayDComplex(), and node_p.
Referenced by isResultDefined().
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Definition at line 1181 of file ExprNode.h.
References casacore::TableExprNodeRep::getArrayDouble(), and node_p.
Referenced by isResultDefined().
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Definition at line 1179 of file ExprNode.h.
References casacore::TableExprNodeRep::getArrayInt(), and node_p.
Referenced by isResultDefined().
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Definition at line 1185 of file ExprNode.h.
References casacore::TableExprNodeRep::getArrayString(), and node_p.
Referenced by isResultDefined().
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Definition at line 1167 of file ExprNode.h.
References casacore::TableExprNodeRep::getBool(), and node_p.
Referenced by isResultDefined().
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Get a value as an array, even it it is a scalar.
This is useful in case one can give an argument as scalar or array.
Definition at line 1187 of file ExprNode.h.
References casacore::TableExprNodeRep::getBoolAS(), and node_p.
Referenced by isResultDefined().
Get the value of the expression evaluated for the entire column.
The data of function called should match the data type as returned by function getColumnDataType
.
Definition at line 1198 of file ExprNode.h.
References casacore::TableExprNodeRep::getColumnBool(), and node_p.
Referenced by isResultDefined().
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Definition at line 1214 of file ExprNode.h.
References casacore::TableExprNodeRep::getColumnComplex(), and node_p.
Referenced by isResultDefined().
DataType casacore::TableExprNode::getColumnDataType | ( | ) | const |
Get the data type for doing a getColumn on the expression.
This is the data type of the column if the expression consists of a single column only. Otherwise it is the expression data type as returned by function dataType
.
Referenced by isResultDefined().
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Definition at line 1216 of file ExprNode.h.
References casacore::TableExprNodeRep::getColumnDComplex(), and node_p.
Referenced by isResultDefined().
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Definition at line 1212 of file ExprNode.h.
References casacore::TableExprNodeRep::getColumnDouble(), and node_p.
Referenced by isResultDefined().
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Definition at line 1210 of file ExprNode.h.
References casacore::TableExprNodeRep::getColumnFloat(), and node_p.
Referenced by isResultDefined().
Definition at line 1206 of file ExprNode.h.
References casacore::TableExprNodeRep::getColumnInt(), and node_p.
Referenced by isResultDefined().
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Definition at line 1202 of file ExprNode.h.
References casacore::TableExprNodeRep::getColumnShort(), and node_p.
Referenced by isResultDefined().
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Definition at line 1218 of file ExprNode.h.
References casacore::TableExprNodeRep::getColumnString(), and node_p.
Referenced by isResultDefined().
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Definition at line 1200 of file ExprNode.h.
References casacore::TableExprNodeRep::getColumnuChar(), and node_p.
Referenced by isResultDefined().
Definition at line 1208 of file ExprNode.h.
References casacore::TableExprNodeRep::getColumnuInt(), and node_p.
Referenced by isResultDefined().
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Definition at line 1204 of file ExprNode.h.
References casacore::TableExprNodeRep::getColumnuShort(), and node_p.
Referenced by isResultDefined().
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Definition at line 1173 of file ExprNode.h.
References casacore::TableExprNodeRep::getDComplex(), and node_p.
Referenced by isResultDefined().
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Definition at line 1193 of file ExprNode.h.
References casacore::TableExprNodeRep::getDComplexAS(), and node_p.
Referenced by isResultDefined().
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Definition at line 1171 of file ExprNode.h.
References casacore::TableExprNodeRep::getDouble(), and node_p.
Referenced by isResultDefined().
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Definition at line 1191 of file ExprNode.h.
References casacore::TableExprNodeRep::getDoubleAS(), and node_p.
Referenced by isResultDefined().
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Definition at line 1169 of file ExprNode.h.
References casacore::TableExprNodeRep::getInt(), and node_p.
Referenced by isResultDefined().
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Definition at line 1189 of file ExprNode.h.
References casacore::TableExprNodeRep::getIntAS(), and node_p.
Referenced by isResultDefined().
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returns const pointer to the representation-object of it
Definition at line 2032 of file ExprNode.h.
References node_p.
Referenced by isResultDefined().
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returns non-const pointer to the representation-object of it
Definition at line 2036 of file ExprNode.h.
References node_p.
Referenced by isResultDefined().
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Definition at line 1175 of file ExprNode.h.
References casacore::TableExprNodeRep::getString(), and node_p.
Referenced by isResultDefined().
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Definition at line 1195 of file ExprNode.h.
References casacore::TableExprNodeRep::getStringAS(), and node_p.
Referenced by isResultDefined().
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The IN operator to test if a value is contained in an array or set.
The array can also be a scalar.
Definition at line 1292 of file ExprNode.h.
TableExprNode casacore::TableExprNode::in | ( | const TableExprNodeSet & | set, |
const TaQLStyle & | = TaQLStyle(0) |
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Does the node contain no actual node?
Definition at line 888 of file ExprNode.h.
References node_p.
Referenced by casacore::TaQLResult::isTable().
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Is the result value defined? Normally it is, but not for a column with an undefined value.
Definition at line 918 of file ExprNode.h.
References adaptUnit(), checkTableSize(), convertBlockTEN(), getArrayBool(), getArrayDComplex(), getArrayDouble(), getArrayInt(), getArrayString(), getBool(), getBoolAS(), getColumnBool(), getColumnComplex(), getColumnDataType(), getColumnDComplex(), getColumnDouble(), getColumnFloat(), getColumnInt(), getColumnShort(), getColumnString(), getColumnuChar(), getColumnuInt(), getColumnuShort(), getDComplex(), getDComplexAS(), getDouble(), getDoubleAS(), getInt(), getIntAS(), getNodeRep(), getRep(), getString(), getStringAS(), casacore::TableExprNodeRep::isDefined(), newAND(), newArrayPartNode(), newBitAnd(), newBitOr(), newBitXor(), newColumnNode(), newConeNode(), newDivide(), newEQ(), newFunctionNode(), newGE(), newGT(), newIN(), newKeyConst(), newMinus(), newModulo(), newNE(), newOR(), newPlus(), newRandomNode(), newRowidNode(), newRownrNode(), newTimes(), newUDFNode(), node_p, ranges(), show(), table(), throwInvDT(), and casacore::value().
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Is the expression a scalar?
Definition at line 907 of file ExprNode.h.
References node_p, casacore::TableExprNodeRep::valueType(), and casacore::TableExprNodeRep::VTScalar.
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Referenced by isResultDefined().
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Create ArrayElement node for the given array with the given index.
The origin is 0 for C++ and 1 for TaQL.
Referenced by isResultDefined(), and operator()().
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Referenced by isResultDefined(), and casacore::operator &().
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Referenced by isResultDefined(), and casacore::operator|().
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Referenced by isResultDefined(), and casacore::operator^().
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Create a column node on behalf of the Table class.
For builtin data types another type of node is created than for other data types. isArray indicates if the column should be an array column.
Referenced by isResultDefined().
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Create cone function node of the given type with the given arguments.
Referenced by casacore::anyCone(), casacore::cones(), casacore::findCone(), and isResultDefined().
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Referenced by isResultDefined(), and casacore::operator/().
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Referenced by isResultDefined(), and casacore::operator==().
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Create function node of the given type with the given arguments.
Referenced by casacore::abs(), casacore::acos(), casacore::all(), casacore::alls(), casacore::amplitude(), casacore::angdist(), casacore::angdistx(), casacore::any(), casacore::anys(), casacore::arg(), casacore::array(), casacore::asin(), casacore::atan(), casacore::atan2(), casacore::avdev(), casacore::avdevs(), casacore::boxedAll(), casacore::boxedAny(), casacore::boxedAvdev(), casacore::boxedMax(), casacore::boxedMean(), casacore::boxedMedian(), casacore::boxedMin(), casacore::boxedRms(), casacore::boxedStddev(), casacore::boxedVariance(), casacore::capitalize(), casacore::cdate(), casacore::cdow(), casacore::ceil(), casacore::cmonth(), casacore::conj(), casacore::cos(), casacore::cosh(), casacore::ctime(), casacore::ctodt(), casacore::cube(), casacore::date(), casacore::datetime(), casacore::day(), casacore::dms(), casacore::downcase(), casacore::exp(), casacore::floor(), casacore::fmod(), casacore::formComplex(), casacore::fractile(), casacore::fractiles(), casacore::hdms(), casacore::hms(), casacore::iif(), casacore::imag(), casacore::integer(), casacore::isdefined(), casacore::isFinite(), casacore::isInf(), casacore::isNaN(), isResultDefined(), casacore::log(), casacore::log10(), casacore::ltrim(), casacore::max(), casacore::maxs(), casacore::mean(), casacore::means(), casacore::median(), casacore::medians(), casacore::min(), casacore::mins(), casacore::mjd(), casacore::mjdtodate(), casacore::month(), casacore::ndim(), casacore::near(), casacore::nearAbs(), casacore::nelements(), casacore::nfalse(), casacore::nfalses(), casacore::norm(), casacore::ntrue(), casacore::ntrues(), casacore::pattern(), casacore::phase(), casacore::pow(), casacore::product(), casacore::products(), casacore::real(), casacore::regex(), casacore::replace(), casacore::rms(), casacore::rmss(), casacore::round(), casacore::rtrim(), casacore::runningAll(), casacore::runningAny(), casacore::runningAvdev(), casacore::runningMax(), casacore::runningMean(), casacore::runningMedian(), casacore::runningMin(), casacore::runningRms(), casacore::runningStddev(), casacore::runningVariance(), casacore::shape(), casacore::sign(), casacore::sin(), casacore::sinh(), casacore::sqlpattern(), casacore::sqrt(), casacore::square(), casacore::stddev(), casacore::stddevs(), casacore::strlength(), casacore::substr(), casacore::sum(), casacore::sums(), casacore::sumSquare(), casacore::sumSquares(), casacore::tan(), casacore::tanh(), casacore::time(), casacore::toString(), casacore::transpose(), casacore::trim(), casacore::upcase(), casacore::variance(), casacore::variances(), casacore::week(), casacore::weekday(), and casacore::year().
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Referenced by isResultDefined(), casacore::operator<=(), and casacore::operator>=().
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Referenced by isResultDefined(), casacore::operator<(), and casacore::operator>().
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Referenced by in(), and isResultDefined().
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Create a TableExprNodeConst for a table keyword (which is handled as a constant).
Referenced by isResultDefined().
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Referenced by isResultDefined(), and casacore::operator-().
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Referenced by isResultDefined(), and casacore::operator%().
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Referenced by isResultDefined(), and casacore::operator!=().
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Referenced by isResultDefined().
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Construct a new node for the given operation.
Referenced by isResultDefined(), and casacore::operator+().
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Create rand() function node.
Referenced by isResultDefined().
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Create rownumber() function node.
Origin indicates whether the first row should be zero (for C++ binding) or an other value (one for TaQL binding).
Referenced by isResultDefined().
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Referenced by isResultDefined(), and casacore::operator*().
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Create a user defined function node.
Referenced by isResultDefined().
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Get the number of rows in the table associated with this expression.
One is returned if the expression is a constant. Zero is returned if no table is associated with it.
Definition at line 913 of file ExprNode.h.
References node_p, and casacore::TableExprNodeRep::nrow().
TableExprNode casacore::TableExprNode::operator! | ( | ) | const |
Unary NOT-operator on boolean TableExprNode's.
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Slicing in a node containing an array.
It is possible to address a single pixel or an n-dimensional subarray. In case of a single pixel the result is a scalar node. Otherwise the result is an array node with the same dimensionality as the source.
Note that there exist TableExprNodeSet constructors to convert an IPosition
or Slicer
object automatically to a TableExprNodeSet
. An IPosition
addresses a single element and results in a scalar node, while a Slicer
can address multiple elements and always results in an array node.
C++ indexing is 0-based.
Definition at line 1297 of file ExprNode.h.
References newArrayPartNode().
TableExprNode casacore::TableExprNode::operator+ | ( | ) | const |
Unary operators on numeric TableExprNode's.
TableExprNode casacore::TableExprNode::operator- | ( | ) | const |
TableExprNode& casacore::TableExprNode::operator= | ( | const TableExprNode & | ) |
Assignment (reference semantics).
TableExprNode casacore::TableExprNode::operator~ | ( | ) | const |
Unary bitwise negate-operator on integer TableExprNode's.
|
inline |
Convert the tree to a number of range vectors which at least select the same things.
This function is very useful to convert the expression to some intervals covering the select expression. This can be used to do a rough fast selection via an index and do the the slower final selection on that much smaller subset. The function can only convert direct comparisons of columns with constants (via ==, !=, >, >=, < or <=) and their combinations using && or ||.
Definition at line 1127 of file ExprNode.h.
References node_p, and casacore::TableExprNodeRep::ranges().
Referenced by isResultDefined().
|
inline |
Show the tree.
Definition at line 2028 of file ExprNode.h.
References node_p, and casacore::TableExprNodeRep::show().
Referenced by isResultDefined().
|
inline |
Get table.
This gets the Table object to which a TableExprNode belongs. A TableExprNode belongs to the Table to which the column(s) used in an expression belong. Note that all columns in an expression have to belong to the same table.
Definition at line 1131 of file ExprNode.h.
References node_p, and casacore::TableExprNodeRep::table().
Referenced by isResultDefined().
|
static |
Throw invalid data type exception.
Referenced by isResultDefined().
|
inline |
Get the unit of the expression.
Definition at line 897 of file ExprNode.h.
References dataType(), node_p, and casacore::TableExprNodeRep::unit().
TableExprNode casacore::TableExprNode::useUnit | ( | const Unit & | unit | ) | const |
Use a unit for the given TableExprNode.
Note that if a column has a unit, it is automatically set. In that case this can be used to convert units.
|
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Definition at line 1458 of file ExprNode.h.
|
friend |
Definition at line 1430 of file ExprNode.h.
|
friend |
Definition at line 1757 of file ExprNode.h.
|
friend |
Definition at line 1848 of file ExprNode.h.
|
friend |
The amplitude (i.e.
sqrt(re*re + im*im)) of a complex node. This is a synonym for function abs. Defined for scalars and arrays.
Definition at line 1502 of file ExprNode.h.
|
friend |
Angular distance between positions.
Both arguments have to be arrays. If both arrays contain 2 values (ra and dec), the result is a scalar. Otherwise the arrays have to contain a multiple of 2 values and the result is a 2-dim array giving the distance of each position in the first array to each position in the second array.
Definition at line 1329 of file ExprNode.h.
|
friend |
Definition at line 1753 of file ExprNode.h.
|
friend |
The result is always a Bool scalar telling if any cone contains the source.
Definition at line 1347 of file ExprNode.h.
|
friend |
Definition at line 1366 of file ExprNode.h.
|
friend |
Definition at line 1842 of file ExprNode.h.
|
friend |
The arg (i.e.
atan2(im, re)) of a complex node. Defined for scalars and arrays.
Definition at line 1506 of file ExprNode.h.
|
friend |
Create an array of the given shape and fill it with the values.
The values
array is rewound as needed.
Definition at line 1986 of file ExprNode.h.
|
friend |
Transcendental functions applied to to nodes containing scalars or arrays with double values.
They are invalid for Complex nodes.
Definition at line 1434 of file ExprNode.h.
|
friend |
Definition at line 1438 of file ExprNode.h.
|
friend |
Definition at line 1442 of file ExprNode.h.
|
friend |
Definition at line 1732 of file ExprNode.h.
|
friend |
Definition at line 1817 of file ExprNode.h.
|
friend |
Definition at line 1535 of file ExprNode.h.
|
friend |
Definition at line 1602 of file ExprNode.h.
|
friend |
Definition at line 1594 of file ExprNode.h.
|
friend |
Definition at line 1454 of file ExprNode.h.
|
friend |
Definition at line 1584 of file ExprNode.h.
|
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Cone search; test if the position of a source is inside a cone.
Argument sourcePos
must be a double array containing two values (ra and dec of source) in radians.
Argument cones
must be a double array specifying the position of the cone centers and radii in radians. So the array must contain three values (ra,dec,radius) or a multiple of it.
The result is a bool array telling for each cone if it contains the source. If there is only one cone, the result is a scalar.
Definition at line 1341 of file ExprNode.h.
|
friend |
Cone search as above.
However, the cone positions and radii are specified separately and (virtually) a larger array containing every combination of position/radius is formed.
Definition at line 1359 of file ExprNode.h.
|
friend |
The complex conjugate of a complex node.
Defined for scalars and arrays.
Definition at line 1498 of file ExprNode.h.
|
friend |
Definition at line 1380 of file ExprNode.h.
|
friend |
Definition at line 1384 of file ExprNode.h.
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friend |
Definition at line 1606 of file ExprNode.h.
|
friend |
Definition at line 1598 of file ExprNode.h.
|
friend |
Definition at line 1417 of file ExprNode.h.
|
friend |
Definition at line 1568 of file ExprNode.h.
|
friend |
Functions for date-values.
Defined for scalars and arrays.
Definition at line 1554 of file ExprNode.h.
|
friend |
Definition at line 1580 of file ExprNode.h.
|
friend |
Definition at line 1530 of file ExprNode.h.
|
friend |
Definition at line 1388 of file ExprNode.h.
|
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The sourcePos can contain multiple sources.
The result is a double array giving the index of the first cone containing the corresponding source. If there is one source, the result is a double scalar.
Definition at line 1353 of file ExprNode.h.
|
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Definition at line 1373 of file ExprNode.h.
|
friend |
Definition at line 1462 of file ExprNode.h.
|
friend |
Definition at line 1466 of file ExprNode.h.
|
friend |
Form a complex number from two Doubles.
One or both arguments can be scalar or array.
Definition at line 1514 of file ExprNode.h.
|
friend |
Definition at line 1747 of file ExprNode.h.
|
friend |
Definition at line 1835 of file ExprNode.h.
|
friend |
Function resembling the ternary ?:
construct in C++.
The argument "condition" has to be a Bool value. If an element in "condition" is True, the corresponding element from "arg1" is taken, otherwise it is taken from "arg2". The arguments can be scalars or array or any combination.
Definition at line 2019 of file ExprNode.h.
|
friend |
The imaginary part of a complex node.
Defined for scalars and arrays.
Definition at line 1490 of file ExprNode.h.
|
friend |
Function operating on a field resulting in a bool scalar.
It can be used to test if a column has an array in the current row. It can also be used to test if a record contains a field.
Definition at line 2003 of file ExprNode.h.
|
friend |
Function to test if a scalar or array is finite.
It results in a Bool scalar or array.
Definition at line 1687 of file ExprNode.h.
|
friend |
Function to test if a scalar or array is NaN (not-a-number).
It results in a Bool scalar or array.
Definition at line 1679 of file ExprNode.h.
|
friend |
Definition at line 1392 of file ExprNode.h.
|
friend |
Definition at line 1396 of file ExprNode.h.
|
friend |
Definition at line 1645 of file ExprNode.h.
|
friend |
Definition at line 1482 of file ExprNode.h.
|
friend |
Definition at line 1697 of file ExprNode.h.
|
friend |
Definition at line 1793 of file ExprNode.h.
|
friend |
Definition at line 1717 of file ExprNode.h.
|
friend |
Definition at line 1799 of file ExprNode.h.
|
friend |
Definition at line 1742 of file ExprNode.h.
|
friend |
Definition at line 1829 of file ExprNode.h.
|
friend |
Minimum or maximum of 2 nodes.
Makes sense for numeric and String values. For Complex values the norm is compared. One or both arguments can be scalar or array.
Definition at line 1478 of file ExprNode.h.
|
friend |
Functions operating on a Double scalar or array resulting in a Double scalar.
Definition at line 1692 of file ExprNode.h.
|
friend |
Definition at line 1787 of file ExprNode.h.
|
friend |
Definition at line 1564 of file ExprNode.h.
|
friend |
Definition at line 1559 of file ExprNode.h.
|
friend |
Definition at line 1576 of file ExprNode.h.
|
friend |
Definition at line 2011 of file ExprNode.h.
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Functions to return whether a value is "relatively" near another.
Returns tol > abs(val2 - val1)/max(abs(val1),(val2))
. If tol <= 0, returns val1 == val2. If either val is 0.0, takes care of area around the minimum number that can be represented.
The nearAbs functions return whether a value is "absolutely" near another. Returns tol > abs(val2 - val1)
. Default tolerance is 1.0e-13. They operate on scalars and arrays.
Definition at line 1303 of file ExprNode.h.
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Definition at line 1309 of file ExprNode.h.
|
friend |
Definition at line 1316 of file ExprNode.h.
|
friend |
Definition at line 1322 of file ExprNode.h.
|
friend |
Functions operating on any scalar or array resulting in a Double scalar.
A scalar has 1 element and dimensionality 0.
Definition at line 2007 of file ExprNode.h.
|
friend |
Definition at line 1765 of file ExprNode.h.
|
friend |
Definition at line 1860 of file ExprNode.h.
|
friend |
Definition at line 1426 of file ExprNode.h.
|
friend |
Definition at line 1761 of file ExprNode.h.
|
friend |
Definition at line 1854 of file ExprNode.h.
|
friend |
Definition at line 1247 of file ExprNode.h.
|
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Logical operators to combine boolean TableExprNode's.
A null TableExprNode object is ignored, so it is possible to build up a full expression gradually.
|
friend |
Definition at line 1267 of file ExprNode.h.
|
friend |
Definition at line 1242 of file ExprNode.h.
|
friend |
Definition at line 1232 of file ExprNode.h.
|
friend |
Define all global functions as friends.
Arithmetic operators for numeric TableExprNode's.
Definition at line 1222 of file ExprNode.h.
|
friend |
Definition at line 1227 of file ExprNode.h.
|
friend |
Definition at line 1237 of file ExprNode.h.
|
friend |
Definition at line 1287 of file ExprNode.h.
|
friend |
Definition at line 1282 of file ExprNode.h.
|
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Comparison operators.
Definition at line 1262 of file ExprNode.h.
|
friend |
Definition at line 1272 of file ExprNode.h.
|
friend |
Not defined for Bool.
Definition at line 1277 of file ExprNode.h.
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friend |
Definition at line 1257 of file ExprNode.h.
|
friend |
Definition at line 1252 of file ExprNode.h.
|
friend |
|
friend |
Definition at line 1544 of file ExprNode.h.
|
friend |
The phase (i.e.
atan2(im, re)) of a complex node. This is a synonym for function arg. Defined for scalars and arrays.
Definition at line 1510 of file ExprNode.h.
|
friend |
Definition at line 1400 of file ExprNode.h.
|
friend |
Definition at line 1707 of file ExprNode.h.
|
friend |
Definition at line 1775 of file ExprNode.h.
|
friend |
The real part of a complex node.
Defined for scalars and arrays.
Definition at line 1486 of file ExprNode.h.
|
friend |
Functions for regular expression matching and pattern matching.
Defined for scalars and arrays.
pattern
is for a file name like pattern.
sqlpattern
is for an SQL like pattern.
Definition at line 1540 of file ExprNode.h.
|
friend |
Definition at line 1666 of file ExprNode.h.
|
friend |
Definition at line 1672 of file ExprNode.h.
|
friend |
Definition at line 1737 of file ExprNode.h.
|
friend |
Definition at line 1823 of file ExprNode.h.
|
friend |
Definition at line 1450 of file ExprNode.h.
|
friend |
Definition at line 1649 of file ExprNode.h.
|
friend |
|
friend |
|
friend |
|
friend |
|
friend |
|
friend |
|
friend |
|
friend |
|
friend |
|
friend |
|
friend |
Function operating on any scalar or array resulting in a Double array containing the shape.
A scalar has shape [1].
Definition at line 2015 of file ExprNode.h.
|
friend |
Definition at line 1446 of file ExprNode.h.
|
friend |
Transcendental functions that can be applied to essentially all numeric nodes containing scalars or arrays.
Definition at line 1404 of file ExprNode.h.
|
friend |
Definition at line 1408 of file ExprNode.h.
|
friend |
Definition at line 1549 of file ExprNode.h.
|
friend |
Definition at line 1422 of file ExprNode.h.
|
friend |
Definition at line 1412 of file ExprNode.h.
|
friend |
Definition at line 1727 of file ExprNode.h.
|
friend |
Definition at line 1811 of file ExprNode.h.
|
friend |
String functions on scalars or arrays.
Definition at line 1520 of file ExprNode.h.
|
friend |
Definition at line 1653 of file ExprNode.h.
|
friend |
Definition at line 1659 of file ExprNode.h.
|
friend |
Functions operating on a Double or Complex scalar or array resulting in a scalar with the same data type.
Definition at line 1702 of file ExprNode.h.
|
friend |
The partial version of the functions above.
They are applied to the array subsets defined by the axes in the set using the partialXXX functions in ArrayMath. The axes must be 0-relative.
Definition at line 1769 of file ExprNode.h.
|
friend |
Definition at line 1712 of file ExprNode.h.
|
friend |
Definition at line 1781 of file ExprNode.h.
|
friend |
Definition at line 581 of file ExprNode.h.
|
friend |
Definition at line 582 of file ExprNode.h.
|
friend |
Definition at line 1470 of file ExprNode.h.
|
friend |
Definition at line 1474 of file ExprNode.h.
|
friend |
Definition at line 1637 of file ExprNode.h.
|
friend |
Transpose all axes of an array.
Definition at line 1992 of file ExprNode.h.
|
friend |
Transpose an array by making the given axes the first axes.
|
friend |
Definition at line 1641 of file ExprNode.h.
|
friend |
Definition at line 1525 of file ExprNode.h.
|
friend |
Definition at line 1722 of file ExprNode.h.
|
friend |
Definition at line 1805 of file ExprNode.h.
|
friend |
Definition at line 1633 of file ExprNode.h.
|
friend |
Definition at line 1589 of file ExprNode.h.
|
friend |
Definition at line 1572 of file ExprNode.h.
|
private |
The actual (counted referenced) representation of a node.
Definition at line 1122 of file ExprNode.h.
Referenced by applySelection(), get(), getArrayBool(), getArrayDComplex(), getArrayDouble(), getArrayInt(), getArrayString(), getBool(), getBoolAS(), getColumnBool(), getColumnComplex(), getColumnDComplex(), getColumnDouble(), getColumnFloat(), getColumnInt(), getColumnShort(), getColumnString(), getColumnuChar(), getColumnuInt(), getColumnuShort(), getDComplex(), getDComplexAS(), getDouble(), getDoubleAS(), getInt(), getIntAS(), getNodeRep(), getRep(), getString(), getStringAS(), in(), isNull(), isResultDefined(), isScalar(), nrow(), casacore::operator &(), casacore::operator!=(), casacore::operator%(), casacore::operator*(), casacore::operator+(), casacore::operator-(), casacore::operator/(), casacore::operator<(), casacore::operator<=(), casacore::operator==(), casacore::operator>(), casacore::operator>=(), casacore::operator^(), casacore::operator|(), ranges(), show(), table(), and unit().