com.bigdata.rdf.sparql.ast

Class ConstructNode

java.lang.Object

com.bigdata.bop.CoreBaseBOp

com.bigdata.bop.ModifiableBOpBase

com.bigdata.rdf.sparql.ast.ASTBase

com.bigdata.rdf.sparql.ast.QueryNodeBase

com.bigdata.rdf.sparql.ast.GroupMemberNodeBase<E>

com.bigdata.rdf.sparql.ast.GroupNodeBase<E>

com.bigdata.rdf.sparql.ast.AbstractStatementContainer<StatementPatternNode>

com.bigdata.rdf.sparql.ast.ConstructNode

All Implemented Interfaces:

BOp, IGroupMemberNode, IGroupNode<StatementPatternNode>, IQueryNode, IStatementContainer, IVariableBindingRequirements, IPropertySet, Serializable, Cloneable, Iterable<StatementPatternNode>

public class ConstructNode
extends AbstractStatementContainer<StatementPatternNode>
implements IStatementContainer

A template for the construction of one or more graphs based on the solutions projected by a query.

Version:

$Id$

Author:

Bryan Thompson

See Also:

Serialized Form

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static interface	ConstructNode.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
ConstructNode()
ConstructNode(AST2BOpContext ctx)
ConstructNode(BOp[] args, Map<String,Object> anns) Required shallow copy constructor.
ConstructNode(ConstructNode op) Constructor required for com.bigdata.bop.BOpUtility#deepCopy(FilterNode).

Method Summary

Methods

Modifier and Type	Method and Description
IGroupNode<StatementPatternNode>	addChild(StatementPatternNode child) Add a child to this group.
boolean	isDistinctQuads()
boolean	isNativeDistinct() When true, a native DISTINCT ISPO filter will be applied to the constructed graph, otherwise a Java Heap based DISTINCT ISPO filter will be applied.
void	setDistinctQuads(boolean quads)
void	setNativeDistinct(boolean nativeDistinct)
String	toString(int indent) Simple but robust version of to-String

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

getDesiredBound, getRequiredBound

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

addArg, addArg, clone, getAttachedJoinFilters, getChildren, isEmpty, iterator, removeArg, removeChild, replaceWith, setArg, setAttachedJoinFilters, size

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

getContext, getParent, getParentGraphPatternGroup, getParentJoinGroup, setParent

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

getQueryHints, toString

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

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

Methods inherited from class com.bigdata.bop.ModifiableBOpBase

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

Methods inherited from class com.bigdata.bop.CoreBaseBOp

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

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.bigdata.rdf.sparql.ast.IGroupMemberNode

getContext, getParent, getParentGraphPatternGroup, getParentJoinGroup, setParent

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

Methods inherited from interface com.bigdata.rdf.sparql.ast.IVariableBindingRequirements

getDesiredBound, getRequiredBound

Constructor Detail

ConstructNode

public ConstructNode()

ConstructNode

public ConstructNode(AST2BOpContext ctx)

ConstructNode

public ConstructNode(ConstructNode op)

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

ConstructNode

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

Required shallow copy constructor.

Method Detail

addChild

public IGroupNode<StatementPatternNode> addChild(StatementPatternNode child)

Description copied from interface: IGroupNode

Add a child to this group. Child can be a statement pattern, a filter, or another group.

Specified by:

addChild in interface IGroupNode<StatementPatternNode>

Overrides:

addChild in class GroupNodeBase<StatementPatternNode>

Returns:

this

isNativeDistinct

public boolean isNativeDistinct()

When true, a native DISTINCT ISPO filter will be applied to the constructed graph, otherwise a Java Heap based DISTINCT ISPO filter will be applied.

See Also:

ConstructNode.Annotations.NATIVE_DISTINCT, CONSTRUCT should apply DISTINCT (s,p,o) filter

setNativeDistinct

public void setNativeDistinct(boolean nativeDistinct)

isDistinctQuads

public boolean isDistinctQuads()

setDistinctQuads

public void setDistinctQuads(boolean quads)

toString

public String toString(int indent)

Description copied from class: GroupNodeBase

Simple but robust version of to-String

Specified by:

toString in interface BOp

Specified by:

toString in interface IQueryNode

Overrides:

toString in class GroupNodeBase<StatementPatternNode>

Returns: