org.eclipse.rdf4j.queryrender.builder

Class UnionBuilder<T extends ParsedQuery,E extends SupportsGroups>

java.lang.Object

org.eclipse.rdf4j.queryrender.builder.UnionBuilder<T,E>

All Implemented Interfaces:

Group, SupportsExpr, SupportsGroups<UnionBuilder<T,E>>

public class UnionBuilder<T extends ParsedQuery,E extends SupportsGroups>
extends Object
implements SupportsGroups<UnionBuilder<T,E>>, Group

Builder class for creating Unioned groups

Author:

Michael Grove

Constructor Summary

Constructors

Constructor and Description
UnionBuilder(GroupBuilder<T,E> theParent)

Method Summary

Modifier and Type	Method and Description
void	addChild(Group theGroup)
UnionBuilder<T,E>	addGroup(Group theGroup) Add this group from the query
GroupBuilder<T,E>	closeUnion() Close this union and return it's parent group builder.
TupleExpr	expr()
boolean	isOptional()
GroupBuilder<T,UnionBuilder<T,E>>	left() Return a builder for creating the left operand of the union
UnionBuilder<T,E>	removeGroup(Group theGroup) Remove this group from the query
GroupBuilder<T,UnionBuilder<T,E>>	right() Return a builder for creating the right operand of the union
int	size()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

UnionBuilder

public UnionBuilder(GroupBuilder<T,E> theParent)

Method Detail

left

public GroupBuilder<T,UnionBuilder<T,E>> left()

Return a builder for creating the left operand of the union

Returns:

builder for left operand

right

public GroupBuilder<T,UnionBuilder<T,E>> right()

Return a builder for creating the right operand of the union

Returns:

builder for right operand

closeUnion

public GroupBuilder<T,E> closeUnion()

Close this union and return it's parent group builder.

Returns:

the parent builder

size

public int size()

Specified by:

size in interface Group

addGroup

public UnionBuilder<T,E> addGroup(Group theGroup)

Description copied from interface: SupportsGroups

Add this group from the query

Specified by:

addGroup in interface SupportsGroups<UnionBuilder<T extends ParsedQuery,E extends SupportsGroups>>

Parameters:

theGroup - the group to add

Returns:

this builder

removeGroup

public UnionBuilder<T,E> removeGroup(Group theGroup)

Description copied from interface: SupportsGroups

Remove this group from the query

Specified by:

removeGroup in interface SupportsGroups<UnionBuilder<T extends ParsedQuery,E extends SupportsGroups>>

Parameters:

theGroup - the group to remove

Returns:

this builder

addChild

public void addChild(Group theGroup)

Specified by:

addChild in interface Group

expr

public TupleExpr expr()

Specified by:

expr in interface SupportsExpr

isOptional

public boolean isOptional()

Specified by:

isOptional in interface Group