com.bigdata.bop.constraint

Class EQConstant

java.lang.Object

com.bigdata.bop.CoreBaseBOp

com.bigdata.bop.BOpBase

com.bigdata.bop.constraint.EQConstant

All Implemented Interfaces:

BOp, BooleanValueExpression, IValueExpression<Boolean>, IPropertySet, Serializable, Cloneable

public class EQConstant
extends BOpBase
implements BooleanValueExpression

Imposes the constraint var == constant.

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from interface com.bigdata.bop.BOp

BOp.Annotations

Field Summary

Fields inherited from class com.bigdata.bop.CoreBaseBOp

DEFAULT_INITIAL_CAPACITY

Fields inherited from interface com.bigdata.bop.BOp

NOANNS, NOARGS

Constructor Summary

Constructors

Constructor and Description
EQConstant(BOp[] args, Map<String,Object> annotations) Required shallow copy constructor.
EQConstant(EQConstant op) Constructor required for com.bigdata.bop.BOpUtility#deepCopy(FilterNode).
EQConstant(IVariable<?> x, IConstant<?> y)

Method Summary

Methods

Modifier and Type	Method and Description
Boolean	get(IBindingSet bset) Return the as bound value of the variable, constant, or expression.

Methods inherited from class com.bigdata.bop.BOpBase

__replaceArg, _clearProperty, _set, _setProperty, annotations, annotationsCopy, annotationsEqual, annotationsRef, argIterator, args, argsCopy, arity, clearAnnotations, clearProperty, deepCopy, deepCopy, get, getProperty, setArg, setProperty, setUnboundProperty, toArray, toArray

Methods inherited from class com.bigdata.bop.CoreBaseBOp

annotationsEqual, annotationsToString, annotationsToString, annotationValueToString, checkArgs, clone, equals, getEvaluationContext, getId, getProperty, getRequiredProperty, hashCode, indent, isController, mutation, shortenName, toShortString, toString, toString

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface com.bigdata.bop.IValueExpression

toString

Methods inherited from interface com.bigdata.bop.BOp

annotations, argIterator, args, arity, clone, get, getEvaluationContext, getId, getProperty, getRequiredProperty, isController, setProperty, toArray, toArray, toShortString, toString

Methods inherited from interface cutthecrap.utils.striterators.IPropertySet

getProperty

Constructor Detail

EQConstant

public EQConstant(IVariable<?> x,
          IConstant<?> y)

EQConstant

public EQConstant(BOp[] args,
          Map<String,Object> annotations)

Required shallow copy constructor.

EQConstant

public EQConstant(EQConstant op)

Constructor required for com.bigdata.bop.BOpUtility#deepCopy(FilterNode).

Method Detail

get

public Boolean get(IBindingSet bset)

Description copied from interface: IValueExpression

Return the as bound value of the variable, constant, or expression. The as bound value of an IConstant is the contant's value. The as bound value of an IVariable is the bound value in the given IBindingSet -or- null if the variable is not bound in the IBindingSet.

Specified by:

get in interface BooleanValueExpression

Specified by:

get in interface IValueExpression<Boolean>

Parameters:

bset - The binding set.

Returns:

The as bound value of the constant, variable, or expression.