com.bigdata.rdf.sparql.ast

Class ExistsNode

java.lang.Object

com.bigdata.bop.CoreBaseBOp

com.bigdata.bop.ModifiableBOpBase

com.bigdata.rdf.sparql.ast.ASTBase

com.bigdata.rdf.sparql.ast.ValueExpressionNode

com.bigdata.rdf.sparql.ast.FunctionNode

com.bigdata.rdf.sparql.ast.SubqueryFunctionNodeBase

com.bigdata.rdf.sparql.ast.ExistsNode

All Implemented Interfaces:

BOp, IGraphPatternContainer, IValueExpressionNode, IPropertySet, Serializable, Cloneable

public class ExistsNode
extends SubqueryFunctionNodeBase

A special function node for modeling EXISTS.

Version:

$Id$

Author:

Bryan Thompson

See Also:

Serialized Form

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
ExistsNode(BOp[] args, Map<String,Object> anns) Required shallow copy constructor.
ExistsNode(ExistsNode op) Constructor required for com.bigdata.bop.BOpUtility#deepCopy(FilterNode).
ExistsNode(VarNode anonvar, GraphPatternGroup<IGroupMemberNode> graphPattern)

Method Summary

Methods inherited from class com.bigdata.rdf.sparql.ast.SubqueryFunctionNodeBase

annotationValueToString, getFilterExistsMode, getGraphPattern, setFilterExistsMode, setGraphPattern

Methods inherited from class com.bigdata.rdf.sparql.ast.FunctionNode

add, AND, binary, EQ, GE, getFunctionURI, getScalarValues, GT, invalidate, isBound, LE, LT, MAX, MIN, NE, NOT, OR, sameTerm, subtract, toString

Methods inherited from class com.bigdata.rdf.sparql.ast.ValueExpressionNode

getRequiredValueExpression, getValueExpression, isConstant, isFunction, isVariable, setValueExpression, toShortString

Methods inherited from class com.bigdata.rdf.sparql.ast.ASTBase

addExplainHint, getExplainHints, getQueryHint, getQueryHint, getQueryHintAsBoolean, getQueryHintAsBoolean, getQueryHintAsInteger, getQueryHints, replaceAllWith, setQueryHint, setQueryHints

Methods inherited from class com.bigdata.bop.ModifiableBOpBase

addArg, addArg, addArgIfAbsent, annotations, annotationsEqual, argIterator, args, arity, clearProperty, copyAll, get, getProperty, indexOf, removeArg, replaceWith, setArg, setArgs, setId, setProperty, setUnboundProperty, toArray, toArray

Methods inherited from class com.bigdata.bop.CoreBaseBOp

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

Methods inherited from class java.lang.Object

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

Constructor Detail

ExistsNode

public ExistsNode(VarNode anonvar,
          GraphPatternGroup<IGroupMemberNode> graphPattern)

Parameters:

lex -

anonvar - An anonymous variable which will be bound by an ASK subquery.

graphPattern - The inner value of the EXISTS function.

ExistsNode

public ExistsNode(ExistsNode op)

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

ExistsNode

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

Required shallow copy constructor.