com.bigdata.rdf.sparql.ast

Class GraphPatternGroup<E extends IGroupMemberNode>

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.GraphPatternGroup<E>

All Implemented Interfaces:

BOp, IBindingProducerNode, IGroupMemberNode, IGroupNode<E>, IJoinNode, IQueryNode, IVariableBindingRequirements, IPropertySet, Serializable, Cloneable, Iterable<E>

Direct Known Subclasses:

JoinGroupNode, UnionNode

public abstract class GraphPatternGroup<E extends IGroupMemberNode>
extends GroupNodeBase<E>
implements IJoinNode

Join group or union.

Version:

$Id$ TODO It would make the internal APIs significantly easier if we modeled this as a type of GraphPatternGroup, similar to JoinGroupNode and UnionNode.

Author:

Bryan Thompson

See Also:

Serialized Form

Nested Class Summary

Nested Classes

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

Method Summary

Methods

Modifier and Type	Method and Description
<T> List<T>	getChildren(Class<T> type) Return the nodes of the supplied type.
IVariable<?>[]	getJoinVars() The join variables for the group.
IVariable<?>[]	getProjectInVars() The variables that should be projected into the group.
void	setJoinVars(IVariable<?>[] joinVars)
void	setProjectInVars(IVariable<?>[] projectInVars)

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

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

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.IJoinNode

getAttachedJoinFilters, isMinus, isOptional, setAttachedJoinFilters

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

toString

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.IGroupMemberNode

getContext, getParent, getParentGraphPatternGroup, getParentJoinGroup, setParent

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

getDesiredBound, getRequiredBound

Constructor Detail

GraphPatternGroup

public GraphPatternGroup(GraphPatternGroup<E> op)

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

GraphPatternGroup

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

Required shallow copy constructor.

GraphPatternGroup

public GraphPatternGroup()

Method Detail

getJoinVars

public IVariable<?>[] getJoinVars()

The join variables for the group.

See Also:

GraphPatternGroup.Annotations.JOIN_VARS

setJoinVars

public void setJoinVars(IVariable<?>[] joinVars)

getProjectInVars

public IVariable<?>[] getProjectInVars()

The variables that should be projected into the group.

See Also:

GraphPatternGroup.Annotations.PROJECT_IN_VARS

setProjectInVars

public void setProjectInVars(IVariable<?>[] projectInVars)

getChildren

public <T> List<T> getChildren(Class<T> type)

Return the nodes of the supplied type. Uses isAssignableFrom to determine whether the node is an instance of the supplied type.