casacore
Public Member Functions | Static Public Member Functions | Protected Attributes | List of all members
casacore::TableExprNodeColumn Class Reference

Scalar column in table select expression tree. More...

#include <ExprDerNode.h>

Public Member Functions

 TableExprNodeColumn (const Table &, const String &columnName)
 
 ~TableExprNodeColumn ()
 
virtual void getColumnNodes (std::vector< TableExprNodeRep * > &cols)
 This node represents a table column. More...
 
virtual void disableApplySelection ()
 Do not apply the selection. More...
 
virtual void applySelection (const Vector< rownr_t > &rownrs)
 Re-create the column object for a selection of rows. More...
 
Bool getColumnDataType (DataType &) const
 Get the data type of this scalar column. More...
 
Bool getBool (const TableExprId &id)
 Get the data for the given id. More...
 
Int64 getInt (const TableExprId &id)
 
Double getDouble (const TableExprId &id)
 
DComplex getDComplex (const TableExprId &id)
 
String getString (const TableExprId &id)
 
const TableColumngetColumn () const
 
Array< BoolgetColumnBool (const Vector< rownr_t > &rownrs)
 Get the data for the given rows. More...
 
Array< uChargetColumnuChar (const Vector< rownr_t > &rownrs)
 
Array< ShortgetColumnShort (const Vector< rownr_t > &rownrs)
 
Array< uShortgetColumnuShort (const Vector< rownr_t > &rownrs)
 
Array< IntgetColumnInt (const Vector< rownr_t > &rownrs)
 
Array< uIntgetColumnuInt (const Vector< rownr_t > &rownrs)
 
Array< Int64getColumnInt64 (const Vector< rownr_t > &rownrs)
 
Array< FloatgetColumnFloat (const Vector< rownr_t > &rownrs)
 
Array< DoublegetColumnDouble (const Vector< rownr_t > &rownrs)
 
Array< Complex > getColumnComplex (const Vector< rownr_t > &rownrs)
 
Array< DComplex > getColumnDComplex (const Vector< rownr_t > &rownrs)
 
Array< StringgetColumnString (const Vector< rownr_t > &rownrs)
 
- Public Member Functions inherited from casacore::TableExprNodeBinary
 TableExprNodeBinary (NodeDataType, ValueType, OperType, const Table &)
 Constructor. More...
 
 TableExprNodeBinary (NodeDataType, const TableExprNodeRep &, OperType)
 
virtual ~TableExprNodeBinary ()
 Destructor. More...
 
virtual void show (ostream &, uInt indent) const
 Show the expression tree. More...
 
virtual void getAggrNodes (std::vector< TableExprNodeRep * > &aggr)
 Get the nodes representing an aggregate function. More...
 
void setChildren (const TENShPtr &left, const TENShPtr &right, Bool adapt=True)
 Set the children. More...
 
virtual void handleUnits ()
 Handle the units of the children and possibly set the parent's unit. More...
 
void adaptDataTypes ()
 If one of the children is a constant, convert its data type to that of the other operand. More...
 
const TENShPtrgetLeftChild () const
 Get the child nodes. More...
 
const TENShPtrgetRightChild () const
 
- Public Member Functions inherited from casacore::TableExprNodeRep
 TableExprNodeRep (NodeDataType, ValueType, OperType, ArgType, ExprType, Int ndim, const IPosition &shape, const Table &table)
 Construct a node. More...
 
 TableExprNodeRep (NodeDataType, ValueType, OperType, const Table &)
 This constructor is called from the derived TableExprNodeRep. More...
 
 TableExprNodeRep (const TableExprNodeRep &)
 Copy constructor. More...
 
virtual ~TableExprNodeRep ()
 The destructor deletes all the underlying TableExprNode objects. More...
 
virtual Double getUnitFactor () const
 Get the unit conversion factor. More...
 
void checkAggrFuncs ()
 Throw an exception if an aggregate function is used in the expression node or its children. More...
 
virtual CountedPtr< TableExprGroupFuncBasemakeGroupAggrFunc ()
 Create the correct immediate aggregate function object. More...
 
virtual Bool isLazyAggregate () const
 Is the aggregate function a lazy or an immediate one? The default implementation returns True (because all UDF aggregate functions have to be lazy). More...
 
virtual TaqlRegex getRegex (const TableExprId &id)
 
virtual MVTime getDate (const TableExprId &id)
 
virtual MArray< BoolgetArrayBool (const TableExprId &id)
 Get an array value for this node in the given row. More...
 
virtual MArray< Int64getArrayInt (const TableExprId &id)
 
virtual MArray< DoublegetArrayDouble (const TableExprId &id)
 
virtual MArray< DComplex > getArrayDComplex (const TableExprId &id)
 
virtual MArray< StringgetArrayString (const TableExprId &id)
 
virtual MArray< MVTimegetArrayDate (const TableExprId &id)
 
void get (const TableExprId &id, Bool &value)
 General get functions for template purposes. More...
 
void get (const TableExprId &id, Int64 &value)
 
void get (const TableExprId &id, Double &value)
 
void get (const TableExprId &id, DComplex &value)
 
void get (const TableExprId &id, MVTime &value)
 
void get (const TableExprId &id, String &value)
 
void get (const TableExprId &id, MArray< Bool > &value)
 
void get (const TableExprId &id, MArray< Int64 > &value)
 
void get (const TableExprId &id, MArray< Double > &value)
 
void get (const TableExprId &id, MArray< DComplex > &value)
 
void get (const TableExprId &id, MArray< MVTime > &value)
 
void get (const TableExprId &id, MArray< String > &value)
 
MArray< BoolgetBoolAS (const TableExprId &id)
 Get a value as an array, even it it is a scalar. More...
 
MArray< Int64getIntAS (const TableExprId &id)
 
MArray< DoublegetDoubleAS (const TableExprId &id)
 
MArray< DComplex > getDComplexAS (const TableExprId &id)
 
MArray< StringgetStringAS (const TableExprId &id)
 
MArray< MVTimegetDateAS (const TableExprId &id)
 
virtual Bool hasBool (const TableExprId &id, Bool value)
 Does a value occur in an array or set? The default implementation tests if it is in an array. More...
 
virtual Bool hasInt (const TableExprId &id, Int64 value)
 
virtual Bool hasDouble (const TableExprId &id, Double value)
 
virtual Bool hasDComplex (const TableExprId &id, const DComplex &value)
 
virtual Bool hasString (const TableExprId &id, const String &value)
 
virtual Bool hasDate (const TableExprId &id, const MVTime &value)
 
virtual MArray< BoolhasArrayBool (const TableExprId &id, const MArray< Bool > &value)
 
virtual MArray< BoolhasArrayInt (const TableExprId &id, const MArray< Int64 > &value)
 
virtual MArray< BoolhasArrayDouble (const TableExprId &id, const MArray< Double > &value)
 
virtual MArray< BoolhasArrayDComplex (const TableExprId &id, const MArray< DComplex > &value)
 
virtual MArray< BoolhasArrayString (const TableExprId &id, const MArray< String > &value)
 
virtual MArray< BoolhasArrayDate (const TableExprId &id, const MArray< MVTime > &value)
 
rownr_t nrow () const
 Get the number of rows in the table associated with this expression. More...
 
virtual void ranges (Block< TableExprRange > &)
 Convert the tree to a number of range vectors which at least select the same things. More...
 
NodeDataType dataType () const
 Get the data type of the derived TableExprNode object. More...
 
Bool isReal () const
 Is the data type real (i.e., integer or double)? More...
 
ValueType valueType () const
 Get the value type. More...
 
void setValueType (ValueType vtype)
 Set the value type. More...
 
OperType operType () const
 Get the operator type. More...
 
ExprType exprType () const
 Get the expression type. More...
 
Bool isConstant () const
 Is the expression a constant? More...
 
const Unitunit () const
 Get the unit. More...
 
void setUnit (const Unit &unit)
 Set the unit. More...
 
const Recordattributes () const
 Get the attributes. More...
 
void setAttributes (const Record &)
 Set the attributes. More...
 
Int ndim () const
 Get the fixed dimensionality (same for all rows). More...
 
const IPositionshape () const
 Get the fixed shape (same for all rows). More...
 
const IPositionshape (const TableExprId &id)
 Get the shape for the given row. More...
 
virtual Bool isDefined (const TableExprId &id)
 Is the value in the given row defined? The default implementation returns True. More...
 
Tabletable ()
 Get table. More...
 
const Tabletable () const
 
virtual void adaptSetUnits (const Unit &)
 Let a set node convert itself to the given unit. More...
 

Static Public Member Functions

static Unit getColumnUnit (const TableColumn &)
 Get the column unit (can be empty). More...
 
- Static Public Member Functions inherited from casacore::TableExprNodeBinary
static NodeDataType getDT (NodeDataType leftDtype, NodeDataType rightDype, OperType operType)
 Check the data types and get the common one. More...
 
static TableExprNodeRep getCommonTypes (const TENShPtr &left, const TENShPtr &right, OperType operType)
 Check the data and value types and get the common one. More...
 
- Static Public Member Functions inherited from casacore::TableExprNodeRep
static TENShPtr replaceConstNode (const TENShPtr &node)
 Replace a node with a constant expression by node with its value. More...
 
static void createRange (Block< TableExprRange > &, TableExprNodeColumn *, Double start, Double end)
 Create a range object from a column and an interval. More...
 
static void createRange (Block< TableExprRange > &)
 Create a empty range object. More...
 
static String typeString (NodeDataType)
 Convert a NodeDataType to a string. More...
 
static String typeString (ValueType)
 Convert a ValueType to a string. More...
 

Protected Attributes

Table selTable_p
 
TableColumn tabCol_p
 
Bool applySelection_p
 
- Protected Attributes inherited from casacore::TableExprNodeBinary
TENShPtr lnode_p
 
TENShPtr rnode_p
 
- Protected Attributes inherited from casacore::TableExprNodeRep
Table table_p
 
NodeDataType dtype_p
 
ValueType vtype_p
 
OperType optype_p
 
ArgType argtype_p
 
ExprType exprtype_p
 
Int ndim_p
 
IPosition shape_p
 
Unit unit_p
 
Record attributes_p
 

Additional Inherited Members

- Public Types inherited from casacore::TableExprNodeRep
enum  NodeDataType {
  NTBool ,
  NTInt ,
  NTDouble ,
  NTComplex ,
  NTString ,
  NTRegex ,
  NTDate ,
  NTReal ,
  NTDouCom ,
  NTNumeric ,
  NTAny
}
 Define the data types of a node. More...
 
enum  ValueType {
  VTScalar ,
  VTArray ,
  VTRecord ,
  VTSetElem ,
  VTSet ,
  VTIndex
}
 Define the value types. More...
 
enum  OperType {
  OtPlus ,
  OtMinus ,
  OtTimes ,
  OtDivide ,
  OtModulo ,
  OtBitAnd ,
  OtBitOr ,
  OtBitXor ,
  OtBitNegate ,
  OtEQ ,
  OtGE ,
  OtGT ,
  OtNE ,
  OtIN ,
  OtAND ,
  OtOR ,
  OtNOT ,
  OtMIN ,
  OtColumn ,
  OtField ,
  OtLiteral ,
  OtFunc ,
  OtSlice ,
  OtUndef ,
  OtRownr ,
  OtRandom
}
 Define the operator types. More...
 
enum  ArgType {
  NoArr ,
  ArrArr ,
  ArrSca ,
  ScaArr
}
 Define the value types of the 2 arguments when arrays are involved. More...
 
enum  ExprType {
  Constant ,
  Variable
}
 Define (sub-)expression type. More...
 
- Protected Member Functions inherited from casacore::TableExprNodeRep
virtual const IPositiongetShape (const TableExprId &id)
 Get the shape for the given row. More...
 
virtual void convertConstChild ()
 If one of the children is a constant, convert its data type to that of the other operand (if appropriate). More...
 
void checkTablePtr (const TENShPtr &node)
 Check if this node uses the same table pointer. More...
 
void fillExprType (const TENShPtr &node)
 Set expression type to Variable if node is Variable. More...
 
- Static Protected Member Functions inherited from casacore::TableExprNodeBinary
static const UnitmakeEqualUnits (const TENShPtr &left, TENShPtr &right)
 Make the units equal. More...
 
- Static Protected Member Functions inherited from casacore::TableExprNodeRep
static void checkTablePtr (Table &table, const TENShPtr &node)
 
static void fillExprType (ExprType &, const TENShPtr &node)
 
static TENShPtr convertNode (const TENShPtr &thisNode, Bool convertConstType)
 If the node is constant, it is evaluated and replaced by the appropriate TableExprNodeConst object. More...
 

Detailed Description

Scalar column in table select expression tree.

Intended use:

Internal

Review Status

Reviewed By:
UNKNOWN
Date Reviewed:
before2004/08/25

Prerequisite

Synopsis

This class represents a scalar column in a table select expression tree. When the select expression gets evaluated, the value of the given row in the column is used.

Definition at line 299 of file ExprDerNode.h.

Constructor & Destructor Documentation

◆ TableExprNodeColumn()

casacore::TableExprNodeColumn::TableExprNodeColumn ( const Table ,
const String columnName 
)

◆ ~TableExprNodeColumn()

casacore::TableExprNodeColumn::~TableExprNodeColumn ( )

Member Function Documentation

◆ applySelection()

virtual void casacore::TableExprNodeColumn::applySelection ( const Vector< rownr_t > &  rownrs)
virtual

Re-create the column object for a selection of rows.

Reimplemented from casacore::TableExprNodeRep.

◆ disableApplySelection()

virtual void casacore::TableExprNodeColumn::disableApplySelection ( )
virtual

Do not apply the selection.

Reimplemented from casacore::TableExprNodeRep.

◆ getBool()

Bool casacore::TableExprNodeColumn::getBool ( const TableExprId id)
virtual

Get the data for the given id.

Reimplemented from casacore::TableExprNodeRep.

◆ getColumn()

const TableColumn& casacore::TableExprNodeColumn::getColumn ( ) const

◆ getColumnBool()

Array<Bool> casacore::TableExprNodeColumn::getColumnBool ( const Vector< rownr_t > &  rownrs)
virtual

Get the data for the given rows.

Reimplemented from casacore::TableExprNodeRep.

◆ getColumnComplex()

Array<Complex> casacore::TableExprNodeColumn::getColumnComplex ( const Vector< rownr_t > &  rownrs)
virtual

Reimplemented from casacore::TableExprNodeRep.

◆ getColumnDataType()

Bool casacore::TableExprNodeColumn::getColumnDataType ( DataType &  ) const
virtual

Get the data type of this scalar column.

Reimplemented from casacore::TableExprNodeRep.

◆ getColumnDComplex()

Array<DComplex> casacore::TableExprNodeColumn::getColumnDComplex ( const Vector< rownr_t > &  rownrs)
virtual

Reimplemented from casacore::TableExprNodeRep.

◆ getColumnDouble()

Array<Double> casacore::TableExprNodeColumn::getColumnDouble ( const Vector< rownr_t > &  rownrs)
virtual

Reimplemented from casacore::TableExprNodeRep.

◆ getColumnFloat()

Array<Float> casacore::TableExprNodeColumn::getColumnFloat ( const Vector< rownr_t > &  rownrs)
virtual

Reimplemented from casacore::TableExprNodeRep.

◆ getColumnInt()

Array<Int> casacore::TableExprNodeColumn::getColumnInt ( const Vector< rownr_t > &  rownrs)
virtual

Reimplemented from casacore::TableExprNodeRep.

◆ getColumnInt64()

Array<Int64> casacore::TableExprNodeColumn::getColumnInt64 ( const Vector< rownr_t > &  rownrs)
virtual

Reimplemented from casacore::TableExprNodeRep.

◆ getColumnNodes()

virtual void casacore::TableExprNodeColumn::getColumnNodes ( std::vector< TableExprNodeRep * > &  cols)
virtual

This node represents a table column.

Reimplemented from casacore::TableExprNodeBinary.

◆ getColumnShort()

Array<Short> casacore::TableExprNodeColumn::getColumnShort ( const Vector< rownr_t > &  rownrs)
virtual

Reimplemented from casacore::TableExprNodeRep.

◆ getColumnString()

Array<String> casacore::TableExprNodeColumn::getColumnString ( const Vector< rownr_t > &  rownrs)
virtual

Reimplemented from casacore::TableExprNodeRep.

◆ getColumnuChar()

Array<uChar> casacore::TableExprNodeColumn::getColumnuChar ( const Vector< rownr_t > &  rownrs)
virtual

Reimplemented from casacore::TableExprNodeRep.

◆ getColumnuInt()

Array<uInt> casacore::TableExprNodeColumn::getColumnuInt ( const Vector< rownr_t > &  rownrs)
virtual

Reimplemented from casacore::TableExprNodeRep.

◆ getColumnUnit()

static Unit casacore::TableExprNodeColumn::getColumnUnit ( const TableColumn )
static

Get the column unit (can be empty).

◆ getColumnuShort()

Array<uShort> casacore::TableExprNodeColumn::getColumnuShort ( const Vector< rownr_t > &  rownrs)
virtual

Reimplemented from casacore::TableExprNodeRep.

◆ getDComplex()

DComplex casacore::TableExprNodeColumn::getDComplex ( const TableExprId id)
virtual

Reimplemented from casacore::TableExprNodeRep.

◆ getDouble()

Double casacore::TableExprNodeColumn::getDouble ( const TableExprId id)
virtual

Reimplemented from casacore::TableExprNodeRep.

◆ getInt()

Int64 casacore::TableExprNodeColumn::getInt ( const TableExprId id)
virtual

Reimplemented from casacore::TableExprNodeRep.

◆ getString()

String casacore::TableExprNodeColumn::getString ( const TableExprId id)
virtual

Reimplemented from casacore::TableExprNodeRep.

Member Data Documentation

◆ applySelection_p

Bool casacore::TableExprNodeColumn::applySelection_p
protected

Definition at line 345 of file ExprDerNode.h.

◆ selTable_p

Table casacore::TableExprNodeColumn::selTable_p
protected

Definition at line 343 of file ExprDerNode.h.

◆ tabCol_p

TableColumn casacore::TableExprNodeColumn::tabCol_p
protected

Definition at line 344 of file ExprDerNode.h.


The documentation for this class was generated from the following file: