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casacore
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#include <ExprNode.h>
Public Member Functions | |
| TableExprNode () | |
| TableExprNode | operator+ () const |
| Unary operators on numeric TableExprNode's. | |
| TableExprNode | operator- () const |
| TableExprNode | operator! () const |
| Unary NOT-operator on boolean TableExprNode's. | |
| TableExprNode | operator~ () const |
| Unary bitwise negate-operator on integer TableExprNode's. | |
| TableExprNode | operator() (const TableExprNodeSet &indices) |
| Slicing in a node containing an array. | |
| TableExprNode | in (const TableExprNode &array, const TaQLStyle &=TaQLStyle(0)) const |
| The IN operator to test if a value is contained in an array or set. | |
| TableExprNode | in (const TableExprNodeSet &set, const TaQLStyle &=TaQLStyle(0)) const |
| TableExprNode | useUnit (const Unit &unit) const |
| Use a unit for the given TableExprNode. | |
| TableExprNode (const Bool &value) | |
| Constructors to convert a constant value to a TableExprNode. | |
| TableExprNode (const Int &value) | |
| TableExprNode (const uInt &value) | |
| TableExprNode (const Int64 &value) | |
| TableExprNode (const uInt64 &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< Int64 > &value) | |
| TableExprNode (const Array< uInt64 > &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 (const MArray< Bool > &value) | |
| TableExprNode (const MArray< uChar > &value) | |
| TableExprNode (const MArray< Short > &value) | |
| TableExprNode (const MArray< uShort > &value) | |
| TableExprNode (const MArray< Int > &value) | |
| TableExprNode (const MArray< uInt > &value) | |
| TableExprNode (const MArray< Int64 > &value) | |
| TableExprNode (const MArray< uInt64 > &value) | |
| TableExprNode (const MArray< Float > &value) | |
| TableExprNode (const MArray< Double > &value) | |
| TableExprNode (const MArray< Complex > &value) | |
| TableExprNode (const MArray< DComplex > &value) | |
| TableExprNode (const MArray< String > &value) | |
| TableExprNode (const MArray< MVTime > &value) | |
| TableExprNode (const TENShPtr &) | |
| Construct a node from a node representation shared pointer which increments the reference count. | |
| TableExprNode (TableExprNodeRep *rep) | |
| Construct from a node representation. | |
| TableExprNode (const TableExprNode &) | |
| copy constructor (reference semantics). | |
| TableExprNode & | operator= (const TableExprNode &) |
| Assignment (reference semantics). | |
| ~TableExprNode () | |
| The destructor deletes all the underlying TableExprNode objects,. | |
| Bool | isNull () const |
| Does the node contain no actual node? | |
| void | disableApplySelection () |
| Do not apply the selection. | |
| void | applySelection (const Vector< rownr_t > &rownrs) |
| Re-create the column object for a selection of rows. | |
| TableExprInfo | getTableInfo () const |
| Get the table info of the expression node. | |
| Table | table () const __attribute__((deprecated("Use getTableInfo().table() instead"))) |
| Get the table to which the expression node belongs. | |
| const Unit & | unit () const |
| Get the unit of the expression. | |
| const Record & | attributes () const |
| Get the attributes of the expression. | |
| DataType | dataType () const |
| Get the data type of the expression. | |
| Bool | isScalar () const |
| Is the expression a scalar? | |
| rownr_t | nrow () const |
| Get the number of rows in the table associated with this expression. | |
| void | get (const TableExprId &id, Bool &value) const |
| Get a value for this node in the given row. | |
| void | get (const TableExprId &id, Int64 &value) const |
| void | get (const TableExprId &id, Double &value) const |
| void | get (const TableExprId &id, DComplex &value) const |
| void | get (const TableExprId &id, String &value) const |
| void | get (const TableExprId &id, TaqlRegex &value) const |
| void | get (const TableExprId &id, MVTime &value) const |
| void | get (const TableExprId &id, MArray< Bool > &value) const |
| void | get (const TableExprId &id, MArray< Int64 > &value) const |
| void | get (const TableExprId &id, MArray< Double > &value) const |
| void | get (const TableExprId &id, MArray< DComplex > &value) const |
| void | get (const TableExprId &id, MArray< String > &value) const |
| void | get (const TableExprId &id, MArray< MVTime > &value) const |
| void | get (const TableExprId &id, Array< Bool > &value) const |
| void | get (const TableExprId &id, Array< Int64 > &value) const |
| void | get (const TableExprId &id, Array< Double > &value) const |
| void | get (const TableExprId &id, Array< DComplex > &value) const |
| void | get (const TableExprId &id, Array< String > &value) const |
| void | get (const TableExprId &id, Array< MVTime > &value) const |
| Bool | getBool (const TableExprId &id) const |
| Int64 | getInt (const TableExprId &id) const |
| Double | getDouble (const TableExprId &id) const |
| DComplex | getDComplex (const TableExprId &id) const |
| MVTime | getDate (const TableExprId &id) const |
| String | getString (const TableExprId &id) const |
| Array< Bool > | getArrayBool (const TableExprId &id) const |
| Array< Int64 > | getArrayInt (const TableExprId &id) const |
| Array< Double > | getArrayDouble (const TableExprId &id) const |
| Array< DComplex > | getArrayDComplex (const TableExprId &id) const |
| Array< String > | getArrayString (const TableExprId &id) const |
| Array< MVTime > | getArrayDate (const TableExprId &id) const |
| MArray< Bool > | getBoolAS (const TableExprId &id) const |
| Get a value as an array, even it it is a scalar. | |
| MArray< Int64 > | getIntAS (const TableExprId &id) const |
| MArray< Double > | getDoubleAS (const TableExprId &id) const |
| MArray< DComplex > | getDComplexAS (const TableExprId &id) const |
| MArray< String > | getStringAS (const TableExprId &id) const |
| MArray< MVTime > | getDateAS (const TableExprId &id) const |
| DataType | getColumnDataType () const |
| Get the data type for doing a getColumn on the expression. | |
| Array< Bool > | getColumnBool (const RowNumbers &rownrs) const |
| Get the value of the expression evaluated for the entire column. | |
| Array< uChar > | getColumnuChar (const RowNumbers &rownrs) const |
| Array< Short > | getColumnShort (const RowNumbers &rownrs) const |
| Array< uShort > | getColumnuShort (const RowNumbers &rownrs) const |
| Array< Int > | getColumnInt (const RowNumbers &rownrs) const |
| Array< uInt > | getColumnuInt (const RowNumbers &rownrs) const |
| Array< Int64 > | getColumnInt64 (const RowNumbers &rownrs) const |
| Array< Float > | getColumnFloat (const RowNumbers &rownrs) const |
| Array< Double > | getColumnDouble (const RowNumbers &rownrs) const |
| Array< Complex > | getColumnComplex (const RowNumbers &rownrs) const |
| Array< DComplex > | getColumnDComplex (const RowNumbers &rownrs) const |
| Array< String > | getColumnString (const RowNumbers &rownrs) const |
| void | show (ostream &) const |
| Show the tree. | |
| void | ranges (Block< TableExprRange > &) |
| Convert the tree to a number of range vectors which at least select the same things. | |
| Bool | checkTableSize (const Table &table, Bool canBeConst) const |
| Check if tables used in expression have the same number of rows as the given table. | |
| const TENShPtr & | getRep () const |
| returns const pointer to the underlying TableExprNodeRep object. | |
| const TableExprNodeRep * | getNodeRep () const |
| void | adaptUnit (const Unit &) |
| Adapt the unit of the expression to the given unit (if not empty). | |
| TENShPtr | newPlus (const TENShPtr &right) const |
| Construct a new node for the given operation. | |
| TENShPtr | newMinus (const TENShPtr &right) const |
| TENShPtr | newTimes (const TENShPtr &right) const |
| TENShPtr | newDivide (const TENShPtr &right) const |
| TENShPtr | newModulo (const TENShPtr &right) const |
| TENShPtr | newBitAnd (const TENShPtr &right) const |
| TENShPtr | newBitOr (const TENShPtr &right) const |
| TENShPtr | newBitXor (const TENShPtr &right) const |
| TENShPtr | newEQ (const TENShPtr &right) const |
| TENShPtr | newNE (const TENShPtr &right) const |
| TENShPtr | newGE (const TENShPtr &right) const |
| TENShPtr | newGT (const TENShPtr &right) const |
| TENShPtr | newIN (const TENShPtr &right, const TaQLStyle &) const |
| TENShPtr | newOR (const TENShPtr &right) const |
| TENShPtr | newAND (const TENShPtr &right) const |
Static Public Member Functions | |
| static TableExprNode | keyCol (const TableExprInfo &tabInfo, const String &name, const Vector< String > &fieldNames) |
| Create a column node or constant keyword node. | |
| static TableExprNode | newColumnNode (const TableExprInfo &, const String &colName, const Vector< String > &fieldNames) |
| Create a column node on behalf of the Table class. | |
| static TableExprNode | newKeyConst (const TableRecord &, const Vector< String > &fieldNames) |
| Create a TableExprNodeConst for a table keyword (which is handled as a constant). | |
| static TableRecord * | findLastKeyRec (const TableRecord &keyset, const Vector< String > &fieldNames, String &fullName) |
| Handle all field names except the last one. | |
| static void | throwInvDT (const String &message) |
| Throw invalid data type exception. | |
| static TableExprNode | newFunctionNode (TableExprFuncNode::FunctionType, const TableExprNodeSet &set, const TableExprInfo &tabInfo, const TaQLStyle &=TaQLStyle(0)) |
| Create function node of the given type with the given arguments. | |
| 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 TableExprInfo &tableInfo, const TaQLStyle &=TaQLStyle(0)) |
| Create a user defined function node. | |
| static TableExprNode | newConeNode (TableExprFuncNode::FunctionType, const TableExprNodeSet &set, uInt origin=0) |
| Create cone function node of the given type with the given arguments. | |
| 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 TableExprInfo &, uInt origin) |
| Create rownumber() function node. | |
| static TableExprNode | newRowidNode (const TableExprInfo &) |
| Create rowid() function node. | |
| static TableExprNode | newRandomNode (const TableExprInfo &) |
| Create rand() function node. | |
| static TableExprNode | newArrayPartNode (const TableExprNode &arrayNode, const TableExprNodeSet &indices, const TaQLStyle &=TaQLStyle(0)) |
| Create ArrayElement node for the given array with the given index. | |
Private Member Functions | |
| Array< Bool > | getColumnBool (const Vector< uInt > &rownrs) const |
| The same functions as above for the old Vector<uInt>. | |
| Array< uChar > | getColumnuChar (const Vector< uInt > &rownrs) const |
| Array< Short > | getColumnShort (const Vector< uInt > &rownrs) const |
| Array< uShort > | getColumnuShort (const Vector< uInt > &rownrs) const |
| Array< Int > | getColumnInt (const Vector< uInt > &rownrs) const |
| Array< uInt > | getColumnuInt (const Vector< uInt > &rownrs) const |
| Array< Int64 > | getColumnInt64 (const Vector< uInt > &rownrs) const |
| Array< Float > | getColumnFloat (const Vector< uInt > &rownrs) const |
| Array< Double > | getColumnDouble (const Vector< uInt > &rownrs) const |
| Array< Complex > | getColumnComplex (const Vector< uInt > &rownrs) const |
| Array< DComplex > | getColumnDComplex (const Vector< uInt > &rownrs) const |
| Array< String > | getColumnString (const Vector< uInt > &rownrs) const |
| TENShPtr | setBinaryNodeInfo (TableExprNodeBinary *tsnptr, const TENShPtr &right=TENShPtr()) const |
| Put the new binary node object in a shared pointer. | |
Static Private Member Functions | |
| static std::vector< TENShPtr > | convertBlockTEN (Block< TableExprNode > &nodes) |
| convert Block of TableExprNode to vector of TENShPtr. | |
Private Attributes | |
| TENShPtr | node_p |
| The actual (counted referenced) representation of a node. | |
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, making it possible 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, Int64, Double, DComplex and String are used. Char, uChar, Short, uShort, Int and uInt are converted to Int64, float 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 (such as 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 153 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 Int & | value | ) |
| casacore::TableExprNode::TableExprNode | ( | const uInt & | value | ) |
| casacore::TableExprNode::TableExprNode | ( | const Int64 & | value | ) |
| casacore::TableExprNode::TableExprNode | ( | const uInt64 & | 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 | ( | const MArray< Complex > & | value | ) |
| casacore::TableExprNode::TableExprNode | ( | const MArray< DComplex > & | value | ) |
| casacore::TableExprNode::TableExprNode | ( | const TENShPtr & | ) |
Construct a node from a node representation shared pointer which increments the reference count.
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Construct from a node representation.
It takes over the pointer, so the object gets deleted automatically.
Definition at line 256 of file ExprNode.h.
| 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 casacore::TableParseUpdate::adaptUnit().
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 278 of file ExprNode.h.
References node_p.
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Check if tables used in expression have the same number of rows as the given table.
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convert Block of TableExprNode to vector of TENShPtr.
| 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.
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Handle all field names except the last one.
ALl of them must be records. The last record is returned. fullName is filled with the full keyword name separated by dots.
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Definition at line 611 of file ExprNode.h.
References casacore::LatticeExprNode::getArrayBool(), node_p, and casacore::value().
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Definition at line 620 of file ExprNode.h.
References casacore::LatticeExprNode::getArrayDComplex(), node_p, and casacore::value().
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Definition at line 617 of file ExprNode.h.
References casacore::LatticeExprNode::getArrayDouble(), node_p, and casacore::value().
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Definition at line 614 of file ExprNode.h.
References node_p, and casacore::value().
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Definition at line 626 of file ExprNode.h.
References node_p, and casacore::value().
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Definition at line 623 of file ExprNode.h.
References node_p, and casacore::value().
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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 579 of file ExprNode.h.
References casacore::LatticeExprNode::getBool(), node_p, and casacore::value().
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Definition at line 585 of file ExprNode.h.
References casacore::LatticeExprNode::getDComplex(), node_p, and casacore::value().
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Definition at line 583 of file ExprNode.h.
References casacore::LatticeExprNode::getDouble(), node_p, and casacore::value().
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Definition at line 581 of file ExprNode.h.
References node_p, and casacore::value().
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Definition at line 593 of file ExprNode.h.
References casacore::LatticeExprNode::getArrayBool(), node_p, and casacore::value().
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Definition at line 602 of file ExprNode.h.
References casacore::LatticeExprNode::getArrayDComplex(), node_p, and casacore::value().
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Definition at line 599 of file ExprNode.h.
References casacore::LatticeExprNode::getArrayDouble(), node_p, and casacore::value().
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Definition at line 596 of file ExprNode.h.
References node_p, and casacore::value().
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Definition at line 608 of file ExprNode.h.
References node_p, and casacore::value().
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Definition at line 605 of file ExprNode.h.
References node_p, and casacore::value().
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Definition at line 591 of file ExprNode.h.
References node_p, and casacore::value().
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Definition at line 587 of file ExprNode.h.
References node_p, and casacore::value().
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Definition at line 589 of file ExprNode.h.
References node_p, and casacore::value().
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Definition at line 641 of file ExprNode.h.
References node_p.
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Definition at line 651 of file ExprNode.h.
References node_p.
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Definition at line 647 of file ExprNode.h.
References node_p.
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Definition at line 645 of file ExprNode.h.
References node_p.
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Definition at line 643 of file ExprNode.h.
References node_p.
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Definition at line 649 of file ExprNode.h.
References node_p.
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Definition at line 629 of file ExprNode.h.
References casacore::LatticeExprNode::getBool(), and node_p.
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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 653 of file ExprNode.h.
References node_p.
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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 666 of file ExprNode.h.
References node_p.
Referenced by getColumnBool().
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The same functions as above for the old Vector<uInt>.
They are primarily meant for CASA's SplatalogueTable class. Normally they should not be used, hence declared private unless told otherwise.
Definition at line 397 of file ExprNode.h.
References getColumnBool().
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Definition at line 415 of file ExprNode.h.
References getColumnComplex().
| 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.
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Definition at line 417 of file ExprNode.h.
References getColumnDComplex().
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Definition at line 413 of file ExprNode.h.
References getColumnDouble().
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Definition at line 411 of file ExprNode.h.
References getColumnFloat().
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Definition at line 405 of file ExprNode.h.
References getColumnInt().
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Definition at line 409 of file ExprNode.h.
References getColumnInt64().
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Definition at line 401 of file ExprNode.h.
References getColumnShort().
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Definition at line 419 of file ExprNode.h.
References getColumnString().
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Definition at line 399 of file ExprNode.h.
References getColumnuChar().
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Definition at line 407 of file ExprNode.h.
References getColumnuInt().
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Definition at line 403 of file ExprNode.h.
References getColumnuShort().
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Definition at line 637 of file ExprNode.h.
References node_p.
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Definition at line 663 of file ExprNode.h.
References node_p.
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Definition at line 635 of file ExprNode.h.
References node_p.
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Definition at line 659 of file ExprNode.h.
References node_p.
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Definition at line 633 of file ExprNode.h.
References node_p.
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Definition at line 657 of file ExprNode.h.
References node_p.
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Definition at line 631 of file ExprNode.h.
References node_p.
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Definition at line 655 of file ExprNode.h.
References node_p.
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Definition at line 695 of file ExprNode.h.
References casacore::TableExprNodeRep::get(), and node_p.
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returns const pointer to the underlying TableExprNodeRep object.
Definition at line 693 of file ExprNode.h.
References node_p.
Referenced by in(), 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^(), and casacore::operator|().
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Definition at line 639 of file ExprNode.h.
References node_p.
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Definition at line 661 of file ExprNode.h.
References node_p.
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Get the table info of the expression node.
Definition at line 282 of file ExprNode.h.
References node_p.
Referenced by table().
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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 1230 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 269 of file ExprNode.h.
References node_p.
Referenced by casacore::MArrayLogical_global_functions_MArray_logical_operations::allEQ(), casacore::MArrayLogical_global_functions_MArray_logical_operations::anyEQ(), casacore::TaQLResult::isTable(), casacore::MArrayUtil_global_functions_reorderMArray::reorderArray(), and casacore::MArrayUtil_global_functions_reverseMArray::reverseArray().
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Is the expression a scalar?
Definition at line 306 of file ExprNode.h.
References node_p, and casacore::TableExprNodeRep::VTScalar.
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Create a column node or constant keyword node.
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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 operator()().
Referenced by casacore::operator&().
Referenced by casacore::operator|().
Referenced by casacore::operator^().
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Create a column node on behalf of the Table class.
fieldNames indicate a possible field in a column of Records. For builtin data types another type of node is created than for other data types.
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Create cone function node of the given type with the given arguments.
Referenced by casacore::anyCone(), casacore::anyCone(), casacore::cones(), casacore::cones(), casacore::findCone(), and casacore::findCone().
Referenced by casacore::operator/().
Referenced by 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::arrayData(), casacore::arrayFlatten(), casacore::arrayMask(), casacore::asin(), casacore::atan(), casacore::atan2(), casacore::avdev(), casacore::avdevs(), casacore::boolean(), 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::diagonal(), casacore::dms(), casacore::downcase(), casacore::exp(), casacore::floor(), casacore::fmod(), casacore::formComplex(), casacore::formComplex(), casacore::fractile(), casacore::fractiles(), casacore::hdms(), casacore::hms(), casacore::iif(), casacore::imag(), casacore::integer(), casacore::isdefined(), casacore::isFinite(), casacore::isInf(), casacore::isNaN(), casacore::log(), casacore::log10(), casacore::ltrim(), casacore::marray(), casacore::max(), casacore::max(), casacore::maxs(), casacore::mean(), casacore::means(), casacore::median(), casacore::medians(), casacore::min(), casacore::min(), casacore::mins(), casacore::mjd(), casacore::mjdtodate(), casacore::month(), casacore::ndim(), casacore::near(), casacore::near(), casacore::nearAbs(), 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::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::substr(), casacore::sum(), casacore::sums(), casacore::sumSquare(), casacore::sumSquares(), casacore::tan(), casacore::tanh(), casacore::time(), casacore::toString(), casacore::toString(), casacore::transpose(), casacore::transpose(), casacore::trim(), casacore::upcase(), casacore::variance(), casacore::variances(), casacore::week(), casacore::weekday(), and casacore::year().
Referenced by casacore::operator<=(), and casacore::operator>=().
Referenced by casacore::operator<(), and casacore::operator>().
Referenced by in().
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Create a TableExprNodeConst for a table keyword (which is handled as a constant).
fieldNames tells the name of the keyword and possible subrecords.
Referenced by casacore::operator-().
Referenced by casacore::operator%().
Referenced by casacore::operator!=().
Construct a new node for the given operation.
Referenced by casacore::operator+().
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Create rand() function node.
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Create rowid() function node.
Origin is always 0.
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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 casacore::operator*().
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Create a user defined function node.
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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 or if no table is associated with it.
Definition at line 312 of file ExprNode.h.
References node_p.
| 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 1235 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.
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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 575 of file ExprNode.h.
References node_p.
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Put the new binary node object in a shared pointer.
Set the node's info and adapt the children if needed. If the node is constant, it is evaluated and returned as result.
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Get the table to which the expression node belongs.
Definition at line 287 of file ExprNode.h.
References getTableInfo(), and casacore::TableExprInfo::table().
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Throw invalid data type exception.
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| 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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The actual (counted referenced) representation of a node.
Definition at line 570 of file ExprNode.h.
Referenced by applySelection(), attributes(), disableApplySelection(), get(), get(), get(), get(), get(), get(), get(), get(), get(), get(), get(), get(), get(), get(), get(), get(), get(), get(), get(), getArrayBool(), getArrayDate(), getArrayDComplex(), getArrayDouble(), getArrayInt(), getArrayString(), getBool(), getBoolAS(), getColumnBool(), getColumnComplex(), getColumnDComplex(), getColumnDouble(), getColumnFloat(), getColumnInt(), getColumnInt64(), getColumnShort(), getColumnString(), getColumnuChar(), getColumnuInt(), getColumnuShort(), getDate(), getDateAS(), getDComplex(), getDComplexAS(), getDouble(), getDoubleAS(), getInt(), getIntAS(), getNodeRep(), getRep(), getString(), getStringAS(), getTableInfo(), isNull(), isScalar(), nrow(), ranges(), show(), and unit().
1.9.8