casacore
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Class to hold the table expression nodes for an element in a set. More...
#include <ExprNodeSet.h>
Public Member Functions | |
TableExprNodeSetElem (const TableExprNode &node) | |
Create the object for a single expression node. More... | |
TableExprNodeSetElem (const TableExprNode *start, const TableExprNode *end, const TableExprNode *incr, Bool isEndExcl=False) | |
Create the object for a discrete interval. More... | |
TableExprNodeSetElem (Bool isLeftClosed, const TableExprNode &start, const TableExprNode &end, Bool isRightClosed) | |
Create the object for a continuous bounded interval. More... | |
TableExprNodeSetElem (Bool isLeftClosed, const TableExprNode &start) | |
Create the object for a continuous left-bounded interval. More... | |
TableExprNodeSetElem (const TableExprNode &end, Bool isRightClosed) | |
Create the object for a continuous right-bounded interval. More... | |
TableExprNodeSetElem (const TableExprNodeSetElem &) | |
Copy constructor (copy semantics). More... | |
~TableExprNodeSetElem () | |
void | show (ostream &os, uInt indent) const |
Show the node. More... | |
virtual void | getAggrNodes (vector< TableExprNodeRep * > &aggr) |
Get the nodes representing an aggregate function. More... | |
virtual void | getColumnNodes (vector< TableExprNodeRep * > &cols) |
Get the nodes representing a table column. More... | |
Bool | isDiscrete () const |
Is it a discrete set element. More... | |
Bool | isSingle () const |
Is a single value given? More... | |
Bool | isLeftClosed () const |
Is the interval left or right closed? More... | |
Bool | isRightClosed () const |
TableExprNodeRep * | start () const |
Get the start, end or increment expression. More... | |
TableExprNodeRep * | end () const |
TableExprNodeRep * | increment () const |
void | fillVector (Vector< Bool > &vec, uInt &cnt, const TableExprId &id) const |
Fill a vector with the value(s) from this element by appending them at the end of the vector; the end is given by argument cnt which gets incremented with the number of values appended. More... | |
void | fillVector (Vector< Int64 > &vec, uInt &cnt, const TableExprId &id) const |
void | fillVector (Vector< Double > &vec, uInt &cnt, const TableExprId &id) const |
void | fillVector (Vector< DComplex > &vec, uInt &cnt, const TableExprId &id) const |
void | fillVector (Vector< String > &vec, uInt &cnt, const TableExprId &id) const |
void | fillVector (Vector< MVTime > &vec, uInt &cnt, const TableExprId &id) const |
void | matchBool (Bool *match, const Bool *value, uInt nval, const TableExprId &id) const |
Set a flag in the match output array if the corresponding element in the value array is included in this set element. More... | |
void | matchInt (Bool *match, const Int64 *value, uInt nval, const TableExprId &id) const |
void | matchDouble (Bool *match, const Double *value, uInt nval, const TableExprId &id) const |
void | matchDComplex (Bool *match, const DComplex *value, uInt nval, const TableExprId &id) const |
void | matchString (Bool *match, const String *value, uInt nval, const TableExprId &id) const |
void | matchDate (Bool *match, const MVTime *value, uInt nval, const TableExprId &id) const |
TableExprNodeSetElem * | evaluate (const TableExprId &id) const |
Evaluate the element for the given row and construct a new (constant) element from it. More... | |
void | checkTable () |
Get the table of a node and check if the children use the same table. More... | |
virtual void | adaptSetUnits (const Unit &) |
Let a set node convert itself to the given unit. More... | |
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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... | |
TableExprNodeRep * | link () |
Link to this object, i.e. More... | |
virtual void | disableApplySelection () |
Do not apply the selection. More... | |
virtual void | applySelection (const Vector< uInt > &rownrs) |
Re-create the column object for a selection of rows. More... | |
virtual Double | getUnitFactor () const |
Get the unit conversion factor. More... | |
virtual CountedPtr< TableExprGroupFuncBase > | makeGroupAggrFunc () |
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 Bool | getBool (const TableExprId &id) |
Get a scalar value for this node in the given row. More... | |
virtual Int64 | getInt (const TableExprId &id) |
virtual Double | getDouble (const TableExprId &id) |
virtual DComplex | getDComplex (const TableExprId &id) |
virtual String | getString (const TableExprId &id) |
virtual TaqlRegex | getRegex (const TableExprId &id) |
virtual MVTime | getDate (const TableExprId &id) |
virtual Array< Bool > | getArrayBool (const TableExprId &id) |
Get an array value for this node in the given row. More... | |
virtual Array< Int64 > | getArrayInt (const TableExprId &id) |
virtual Array< Double > | getArrayDouble (const TableExprId &id) |
virtual Array< DComplex > | getArrayDComplex (const TableExprId &id) |
virtual Array< String > | getArrayString (const TableExprId &id) |
virtual Array< MVTime > | getArrayDate (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, Array< Bool > &value) |
void | get (const TableExprId &id, Array< Int64 > &value) |
void | get (const TableExprId &id, Array< Double > &value) |
void | get (const TableExprId &id, Array< DComplex > &value) |
void | get (const TableExprId &id, Array< MVTime > &value) |
void | get (const TableExprId &id, Array< String > &value) |
Array< Bool > | getBoolAS (const TableExprId &id) |
Get a value as an array, even it it is a scalar. More... | |
Array< Int64 > | getIntAS (const TableExprId &id) |
Array< Double > | getDoubleAS (const TableExprId &id) |
Array< DComplex > | getDComplexAS (const TableExprId &id) |
Array< String > | getStringAS (const TableExprId &id) |
Array< MVTime > | getDateAS (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 Array< Bool > | hasArrayBool (const TableExprId &id, const Array< Bool > &value) |
virtual Array< Bool > | hasArrayInt (const TableExprId &id, const Array< Int64 > &value) |
virtual Array< Bool > | hasArrayDouble (const TableExprId &id, const Array< Double > &value) |
virtual Array< Bool > | hasArrayDComplex (const TableExprId &id, const Array< DComplex > &value) |
virtual Array< Bool > | hasArrayString (const TableExprId &id, const Array< String > &value) |
virtual Array< Bool > | hasArrayDate (const TableExprId &id, const Array< MVTime > &value) |
uInt | nrow () const |
Get the number of rows in the table associated with this expression. More... | |
virtual Bool | getColumnDataType (DataType &) const |
Get the data type of the column. More... | |
virtual Array< Bool > | getColumnBool (const Vector< uInt > &rownrs) |
Get the value of the expression evaluated for the entire column. More... | |
virtual Array< uChar > | getColumnuChar (const Vector< uInt > &rownrs) |
virtual Array< Short > | getColumnShort (const Vector< uInt > &rownrs) |
virtual Array< uShort > | getColumnuShort (const Vector< uInt > &rownrs) |
virtual Array< Int > | getColumnInt (const Vector< uInt > &rownrs) |
virtual Array< uInt > | getColumnuInt (const Vector< uInt > &rownrs) |
virtual Array< Float > | getColumnFloat (const Vector< uInt > &rownrs) |
virtual Array< Double > | getColumnDouble (const Vector< uInt > &rownrs) |
virtual Array< Complex > | getColumnComplex (const Vector< uInt > &rownrs) |
virtual Array< DComplex > | getColumnDComplex (const Vector< uInt > &rownrs) |
virtual Array< String > | getColumnString (const Vector< uInt > &rownrs) |
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... | |
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 Unit & | unit () const |
Get the unit. More... | |
void | setUnit (const Unit &unit) |
Set the unit. More... | |
Int | ndim () const |
Get the fixed dimensionality (same for all rows). More... | |
const IPosition & | shape () const |
Get the fixed shape (same for all rows). More... | |
const IPosition & | shape (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... | |
Table & | table () |
Get table. More... | |
const Table & | table () const |
Private Member Functions | |
TableExprNodeSetElem & | operator= (const TableExprNodeSetElem &) |
A copy of a TableExprNodeSetElem cannot be made. More... | |
TableExprNodeSetElem (const TableExprNodeSetElem &that, TableExprNodeRep *start, TableExprNodeRep *end, TableExprNodeRep *incr) | |
Construct an element from the given parts and take over their pointers. More... | |
void | setup (Bool isLeftClosed, const TableExprNode *start, const TableExprNode *end, Bool isRightClosed) |
Setup the object for a continuous interval. More... | |
Private Attributes | |
TableExprNodeRep * | itsStart |
TableExprNodeRep * | itsEnd |
TableExprNodeRep * | itsIncr |
Bool | itsEndExcl |
Bool | itsLeftClosed |
Bool | itsRightClosed |
Bool | itsDiscrete |
Bool | itsSingle |
Additional Inherited Members | |
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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... | |
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static void | unlink (TableExprNodeRep *) |
Unlink from the given object. More... | |
static void | checkAggrFuncs (const TableExprNodeRep *node) |
Throw an exception if an aggregate function is used in the expression node. 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... | |
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virtual const IPosition & | getShape (const TableExprId &id) |
Get the shape for the given row. More... | |
virtual void | convertConstChild () |
When one of the children is a constant, convert its data type to that of the other operand. More... | |
void | checkTablePtr (const TableExprNodeRep *node) |
Check if this node uses the same table pointer. More... | |
void | fillExprType (const TableExprNodeRep *node) |
Set expression type to Variable if node is Variable. More... | |
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static TableExprNodeRep * | getRep (TableExprNode &) |
Get pointer to REPresentation object. More... | |
static void | checkTablePtr (Table &table, const TableExprNodeRep *node) |
static void | fillExprType (ExprType &, const TableExprNodeRep *node) |
static TableExprNodeRep * | convertNode (TableExprNodeRep *thisNode, Bool convertConstType) |
When the node is constant, it is evaluated and replaced by the appropriate TableExprNodeConst object. More... | |
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uInt | count_p |
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 |
Class to hold the table expression nodes for an element in a set.
Public interface
This class is used to assemble the table expression nodes representing an element in a set. A set element can be of 3 types:
Note the difference between a discrete and a continuous interval. E.g. the discrete interval 2,6 consists of the five values 2,3,4,5,6. The continuous interval 2,6 consists of all values between them.
Further note that a bounded discrete interval is automatically converted to a vector, which makes it possible to apply array functions to it.
Definition at line 93 of file ExprNodeSet.h.
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explicit |
Create the object for a single expression node.
casacore::TableExprNodeSetElem::TableExprNodeSetElem | ( | const TableExprNode * | start, |
const TableExprNode * | end, | ||
const TableExprNode * | incr, | ||
Bool | isEndExcl = False |
||
) |
Create the object for a discrete interval.
Each of the start, end, and incr pointers can be zero meaning that they are not given (see the synopsis for an explanation). Optionally the end is inclusive (C++ and Glish style) or exclusive (Python style).
casacore::TableExprNodeSetElem::TableExprNodeSetElem | ( | Bool | isLeftClosed, |
const TableExprNode & | start, | ||
const TableExprNode & | end, | ||
Bool | isRightClosed | ||
) |
Create the object for a continuous bounded interval.
It can be open or closed on either side.
casacore::TableExprNodeSetElem::TableExprNodeSetElem | ( | Bool | isLeftClosed, |
const TableExprNode & | start | ||
) |
Create the object for a continuous left-bounded interval.
casacore::TableExprNodeSetElem::TableExprNodeSetElem | ( | const TableExprNode & | end, |
Bool | isRightClosed | ||
) |
Create the object for a continuous right-bounded interval.
casacore::TableExprNodeSetElem::TableExprNodeSetElem | ( | const TableExprNodeSetElem & | ) |
Copy constructor (copy semantics).
casacore::TableExprNodeSetElem::~TableExprNodeSetElem | ( | ) |
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private |
Construct an element from the given parts and take over their pointers.
It is used by evaluate to construct an element in a rather cheap way.
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Let a set node convert itself to the given unit.
Reimplemented from casacore::TableExprNodeRep.
void casacore::TableExprNodeSetElem::checkTable | ( | ) |
Get the table of a node and check if the children use the same table.
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inline |
Definition at line 252 of file ExprNodeSet.h.
References itsEnd.
TableExprNodeSetElem* casacore::TableExprNodeSetElem::evaluate | ( | const TableExprId & | id | ) | const |
Evaluate the element for the given row and construct a new (constant) element from it.
This is used by the system to implement a set in a GIVING clause.
void casacore::TableExprNodeSetElem::fillVector | ( | Vector< Bool > & | vec, |
uInt & | cnt, | ||
const TableExprId & | id | ||
) | const |
Fill a vector with the value(s) from this element by appending them at the end of the vector; the end is given by argument cnt
which gets incremented with the number of values appended.
This is used by the system to convert a set to a vector.
void casacore::TableExprNodeSetElem::fillVector | ( | Vector< Int64 > & | vec, |
uInt & | cnt, | ||
const TableExprId & | id | ||
) | const |
void casacore::TableExprNodeSetElem::fillVector | ( | Vector< Double > & | vec, |
uInt & | cnt, | ||
const TableExprId & | id | ||
) | const |
void casacore::TableExprNodeSetElem::fillVector | ( | Vector< DComplex > & | vec, |
uInt & | cnt, | ||
const TableExprId & | id | ||
) | const |
void casacore::TableExprNodeSetElem::fillVector | ( | Vector< String > & | vec, |
uInt & | cnt, | ||
const TableExprId & | id | ||
) | const |
void casacore::TableExprNodeSetElem::fillVector | ( | Vector< MVTime > & | vec, |
uInt & | cnt, | ||
const TableExprId & | id | ||
) | const |
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Get the nodes representing an aggregate function.
Reimplemented from casacore::TableExprNodeRep.
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Get the nodes representing a table column.
Reimplemented from casacore::TableExprNodeRep.
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inline |
Definition at line 256 of file ExprNodeSet.h.
References itsIncr.
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inline |
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Is the interval left or right closed?
Definition at line 240 of file ExprNodeSet.h.
References itsLeftClosed.
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Definition at line 244 of file ExprNodeSet.h.
References itsRightClosed.
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inline |
void casacore::TableExprNodeSetElem::matchBool | ( | Bool * | match, |
const Bool * | value, | ||
uInt | nval, | ||
const TableExprId & | id | ||
) | const |
Set a flag in the match output array if the corresponding element in the value array is included in this set element.
This is used by the system to implement the IN operator.
Note that it does NOT set match values to False; it is assumed they are initialized that way.
void casacore::TableExprNodeSetElem::matchDate | ( | Bool * | match, |
const MVTime * | value, | ||
uInt | nval, | ||
const TableExprId & | id | ||
) | const |
void casacore::TableExprNodeSetElem::matchDComplex | ( | Bool * | match, |
const DComplex * | value, | ||
uInt | nval, | ||
const TableExprId & | id | ||
) | const |
void casacore::TableExprNodeSetElem::matchDouble | ( | Bool * | match, |
const Double * | value, | ||
uInt | nval, | ||
const TableExprId & | id | ||
) | const |
void casacore::TableExprNodeSetElem::matchInt | ( | Bool * | match, |
const Int64 * | value, | ||
uInt | nval, | ||
const TableExprId & | id | ||
) | const |
void casacore::TableExprNodeSetElem::matchString | ( | Bool * | match, |
const String * | value, | ||
uInt | nval, | ||
const TableExprId & | id | ||
) | const |
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private |
A copy of a TableExprNodeSetElem cannot be made.
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private |
Setup the object for a continuous interval.
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virtual |
Show the node.
Reimplemented from casacore::TableExprNodeRep.
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inline |
Get the start, end or increment expression.
Note that the pointer returned can be zero indicating that that value was not given.
Definition at line 248 of file ExprNodeSet.h.
References itsStart.
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private |
Definition at line 226 of file ExprNodeSet.h.
Referenced by isDiscrete(), and casacore::TableExprNodeSet::isDiscrete().
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Definition at line 221 of file ExprNodeSet.h.
Referenced by end().
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Definition at line 223 of file ExprNodeSet.h.
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Definition at line 222 of file ExprNodeSet.h.
Referenced by increment().
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Definition at line 224 of file ExprNodeSet.h.
Referenced by isLeftClosed().
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Definition at line 225 of file ExprNodeSet.h.
Referenced by isRightClosed().
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private |
Definition at line 227 of file ExprNodeSet.h.
Referenced by isSingle(), and casacore::TableExprNodeSet::isSingle().
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private |
Definition at line 220 of file ExprNodeSet.h.
Referenced by start().