com.bigdata.rdf.internal.constraints
Class DateBOp

java.lang.Object
  com.bigdata.bop.CoreBaseBOp
      com.bigdata.bop.BOpBase
          com.bigdata.rdf.internal.constraints.IVValueExpression<IV>
              com.bigdata.rdf.internal.constraints.DateBOp

All Implemented Interfaces:

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

public class DateBOp
extends IVValueExpression<IV>
implements INeedsMaterialization

A date expression involving a left IValueExpression operand. The operation to be applied to the operands is specified by the DateBOp.Annotations.OP annotation.

See Also:

Serialized Form

Nested Class Summary

static interface	DateBOp.Annotations
static class	DateBOp.DateOp

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

DateBOp(BOp[] args, Map<String,Object> anns)
Required shallow copy constructor.

DateBOp(DateBOp op)
Required deep copy constructor.

DateBOp(IValueExpression<? extends IV> left, DateBOp.DateOp op)

Method Summary

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() Does the bop always need materialized variables, or can it sometimes operate on inline terms without materialization? If sometimes, we'll run it before the materialization pipeline steps in an effort to avoid unnecessary materialization overhead.
IValueExpression<? extends IV>	left()
DateBOp.DateOp	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

_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, checkArgs, clone, equals, getEvaluationContext, getId, getProperty, getRequiredProperty, hashCode, indent, isController, toShortString

Methods inherited from class java.lang.Object

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

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

DateBOp

public DateBOp(IValueExpression<? extends IV> left,
               DateBOp.DateOp op)

Parameters:

left - The left operand.

right - The right operand.

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

DateBOp

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

Required shallow copy constructor.

Parameters:

args - The operands.

op - The operation.

DateBOp

public DateBOp(DateBOp op)

Required deep copy constructor.

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>

get

public final 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.

left

public IValueExpression<? extends IV> left()

op

public DateBOp.DateOp op()

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()

Description copied from interface: INeedsMaterialization

Does the bop always need materialized variables, or can it sometimes operate on inline terms without materialization? If sometimes, we'll run it before the materialization pipeline steps in an effort to avoid unnecessary materialization overhead. If it fails to evaluate for a particular solution, then it will be run again after the materialization steps for that solution.

Specified by:

getRequirement in interface INeedsMaterialization