com.bigdata.rdf.sparql.ast

Class SubqueryFunctionNodeBase

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

All Implemented Interfaces:

BOp, IGraphPatternContainer, IValueExpressionNode, IPropertySet, Serializable, Cloneable

Direct Known Subclasses:

ExistsNode, NotExistsNode

public abstract class SubqueryFunctionNodeBase
extends FunctionNode
implements IGraphPatternContainer

A special function node for modeling value expression nodes which are evaluated against an inner graph expression, such as EXISTS and NOT EXISTS. Another possibility is IN(subSelect), where IN is evaluated against the subquery result.

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

Modifier	Constructor and Description
	SubqueryFunctionNodeBase(BOp[] args, Map<String,Object> anns) Required shallow copy constructor.
	SubqueryFunctionNodeBase(SubqueryFunctionNodeBase op) Constructor required for com.bigdata.bop.BOpUtility#deepCopy(FilterNode).
protected	SubqueryFunctionNodeBase(org.openrdf.model.URI functionURI, VarNode anonvar, GraphPatternGroup<IGroupMemberNode> graphPattern)

Method Summary

Methods

Modifier and Type	Method and Description
protected void	annotationValueToString(StringBuilder sb, BOp val, int i) Add a string representation of a BOp annotation value into a string builder.
FilterExistsModeEnum	getFilterExistsMode()
GraphPatternGroup<IGroupMemberNode>	getGraphPattern() Return the graph pattern.
void	setFilterExistsMode(FilterExistsModeEnum newVal)
void	setGraphPattern(GraphPatternGroup<IGroupMemberNode> graphPattern) Set the graph pattern.

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

SubqueryFunctionNodeBase

public SubqueryFunctionNodeBase(SubqueryFunctionNodeBase op)

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

SubqueryFunctionNodeBase

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

Required shallow copy constructor.

SubqueryFunctionNodeBase

protected SubqueryFunctionNodeBase(org.openrdf.model.URI functionURI,
                        VarNode anonvar,
                        GraphPatternGroup<IGroupMemberNode> graphPattern)

Parameters:

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

graphPattern - The inner value of the EXISTS function.

Method Detail

getGraphPattern

public GraphPatternGroup<IGroupMemberNode> getGraphPattern()

Description copied from interface: IGraphPatternContainer

Return the graph pattern.

Specified by:

getGraphPattern in interface IGraphPatternContainer

setGraphPattern

public void setGraphPattern(GraphPatternGroup<IGroupMemberNode> graphPattern)

Description copied from interface: IGraphPatternContainer

Set the graph pattern.

Specified by:

setGraphPattern in interface IGraphPatternContainer

setFilterExistsMode

public void setFilterExistsMode(FilterExistsModeEnum newVal)

See Also:

Annotations#FILTER_EXISTS

getFilterExistsMode

public FilterExistsModeEnum getFilterExistsMode()

See Also:

Annotations#FILTER_EXISTS

annotationValueToString

protected void annotationValueToString(StringBuilder sb,
                           BOp val,
                           int i)

Description copied from class: CoreBaseBOp

Add a string representation of a BOp annotation value into a string builder. By default this is a non-recursive operation, however subclasses may override and give a recursive definition, which should respect the given indent.

Overrides:

annotationValueToString in class CoreBaseBOp

Parameters:

sb - The destination buffer

val - The BOp to serialize

i - An indent to use if a recursive approach is chosen.