com.thinkaurelius.titan.graphdb.query.graph

Class JointIndexQuery

java.lang.Object

com.thinkaurelius.titan.graphdb.query.BaseQuery

com.thinkaurelius.titan.graphdb.query.graph.JointIndexQuery

All Implemented Interfaces:

BackendQuery<JointIndexQuery>, Query

public class JointIndexQuery
extends BaseQuery
implements BackendQuery<JointIndexQuery>

A component/sub-query of a GraphCentricQuery that gets executed against an indexing backend or the index store by the query processor of the enclosing transaction.

This query itself can contain multiple sub-queries which are individually executed by the IndexSerializer and the result sets merged.

Those sub-queries are either targeting an external indexing backend or the internal index store which is a distinction this query keeps track of through the sub-class JointIndexQuery.Subquery, since their definition and execution differs starkly.

Author:

Matthias Broecheler (me@matthiasb.com)

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	JointIndexQuery.Subquery

Field Summary

Fields inherited from interface com.thinkaurelius.titan.graphdb.query.Query

NO_LIMIT

Constructor Summary

Constructors

Constructor and Description
JointIndexQuery()

Method Summary

Methods

Modifier and Type	Method and Description
void	add(ExternalIndexType index, IndexQuery query)
void	add(InternalIndexType index, KeySliceQuery query)
boolean	equals(Object other)
JointIndexQuery.Subquery	getQuery(int pos)
int	hashCode()
boolean	isEmpty()
int	size()
String	toString()
JointIndexQuery	updateLimit(int newLimit) Creates a new query identical to the current one but with the specified limit.

Methods inherited from class com.thinkaurelius.titan.graphdb.query.BaseQuery

getLimit, hasLimit, setLimit

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.thinkaurelius.titan.graphdb.query.Query

getLimit, hasLimit

Constructor Detail

JointIndexQuery

public JointIndexQuery()

Method Detail

add

public void add(ExternalIndexType index,
       IndexQuery query)

add

public void add(InternalIndexType index,
       KeySliceQuery query)

size

public int size()

getQuery

public JointIndexQuery.Subquery getQuery(int pos)

isEmpty

public boolean isEmpty()

hashCode

public int hashCode()

Overrides:

hashCode in class Object

equals

public boolean equals(Object other)

Overrides:

equals in class Object

toString

public String toString()

Overrides:

toString in class Object

updateLimit

public JointIndexQuery updateLimit(int newLimit)

Description copied from interface: BackendQuery

Creates a new query identical to the current one but with the specified limit.

Specified by:

updateLimit in interface BackendQuery<JointIndexQuery>

Returns: