com.bigdata.rdf.internal.constraints

Class NumericBOp

java.lang.Object

com.bigdata.bop.CoreBaseBOp

com.bigdata.bop.BOpBase

com.bigdata.rdf.internal.constraints.IVValueExpression<IV>

com.bigdata.rdf.internal.constraints.NumericBOp

All Implemented Interfaces:

BOp, IValueExpression<IV>, INeedsMaterialization, IPropertySet, Serializable, Cloneable

public class NumericBOp
extends IVValueExpression<IV>
implements INeedsMaterialization

A math expression involving a left and right IValueExpression operand. The operation to be applied to the operands is specified by the NumericBOp.Annotations.OP annotation.

See Also:

Serialized Form

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static interface	NumericBOp.Annotations
static class	NumericBOp.NumericOp

Nested classes/interfaces inherited from interface com.bigdata.rdf.internal.constraints.INeedsMaterialization

INeedsMaterialization.Requirement

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
NumericBOp(BOp[] args, Map<String,Object> anns) Required shallow copy constructor.
NumericBOp(IValueExpression<? extends IV> left, NumericBOp.NumericOp op)
NumericBOp(NumericBOp op) Constructor required for com.bigdata.bop.BOpUtility#deepCopy(FilterNode).

Method Summary

Methods

Modifier and Type	Method and Description
protected boolean	areGlobalsRequired() Returns true unless overridden, meaning the GlobalAnnotations are required for this value expression (certain boolean value expressions do not require them).
IV	get(IBindingSet bs) Return the as bound value of the variable, constant, or expression.
INeedsMaterialization.Requirement	getRequirement() The MathBOp can work on inline numerics.
IValueExpression<? extends IV>	left()
NumericBOp.NumericOp	op()
String	toString() Return a non-recursive representation of the arguments and annotations for this BOp.

Methods inherited from class com.bigdata.rdf.internal.constraints.IVValueExpression

anns, asIV, asIV, asLiteral, asValue, get, getAndCheckBound, getAndCheckLiteral, getAndCheckLiteralValue, getLexiconConfiguration, getNamespace, getTimestamp, getValueFactory, literalLabel

Methods inherited from class com.bigdata.bop.BOpBase

__replaceArg, _clearProperty, _set, _setProperty, annotations, annotationsCopy, annotationsEqual, annotationsRef, argIterator, args, argsCopy, arity, clearAnnotations, clearProperty, deepCopy, deepCopy, 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

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, getEvaluationContext, getId, getProperty, getRequiredProperty, isController, setProperty, toArray, toArray, toShortString

Methods inherited from interface cutthecrap.utils.striterators.IPropertySet

getProperty

Constructor Detail

NumericBOp

public NumericBOp(IValueExpression<? extends IV> left,
          NumericBOp.NumericOp op)

Parameters:

left - The left operand.

right - The right operand.

op - The annotation specifying the operation to be performed on those operands.

NumericBOp

public NumericBOp(BOp[] args,
          Map<String,Object> anns)

Required shallow copy constructor.

Parameters:

args - The operands.

op - The operation.

NumericBOp

public NumericBOp(NumericBOp op)

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

Parameters:

op -

Method Detail

areGlobalsRequired

protected boolean areGlobalsRequired()

Description copied from class: IVValueExpression

Returns true unless overridden, meaning the GlobalAnnotations are required for this value expression (certain boolean value expressions do not require them). Global annotations allow the method getValueFactory and getLexiconConfiguration to work.

Overrides:

areGlobalsRequired in class IVValueExpression<IV>

left

public IValueExpression<? extends IV> left()

op

public NumericBOp.NumericOp op()

get

public IV get(IBindingSet bs)

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 IValueExpression<IV>

Parameters:

bs - The binding set.

Returns:

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

toString

public String toString()

Description copied from class: CoreBaseBOp

Return a non-recursive representation of the arguments and annotations for this BOp.

Specified by:

toString in interface BOp

Overrides:

toString in class CoreBaseBOp

getRequirement

public INeedsMaterialization.Requirement getRequirement()

The MathBOp can work on inline numerics. It is only when the operands evaluate to non-inline numerics that this bop needs materialization.

Specified by:

getRequirement in interface INeedsMaterialization