com.thinkaurelius.titan.graphdb.query

Class BackendQueryHolder<E extends BackendQuery<E>>

java.lang.Object

com.thinkaurelius.titan.graphdb.query.BackendQueryHolder<E>

public class BackendQueryHolder<E extends BackendQuery<E>>
extends Object

Holds a BackendQuery and captures additional information that pertains to its execution and to be used by a QueryExecutor:

• Whether the query is fitted, i.e., whether all results returned from executing the backend query are part of the result set or must be filtered in memory.
• Whether the query results will already be sorted in the user defined sort order or whether extra sorting is required.
• Additional execution info required by the query executor. This would be compiled by the query optimizer and is passed through verbatim. Can be null.

Author:

Matthias Broecheler (me@matthiasb.com)

Constructor Summary

Constructors

Constructor and Description
BackendQueryHolder(E backendQuery, boolean fitted, boolean sorted)
BackendQueryHolder(E backendQuery, boolean fitted, boolean sorted, Object executionInfo)

Method Summary

Methods

Modifier and Type	Method and Description
E	getBackendQuery()
Object	getExecutionInfo()
boolean	isFitted()
boolean	isSorted()

Methods inherited from class java.lang.Object

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

Constructor Detail

BackendQueryHolder

public BackendQueryHolder(E backendQuery,
                  boolean fitted,
                  boolean sorted,
                  Object executionInfo)

BackendQueryHolder

public BackendQueryHolder(E backendQuery,
                  boolean fitted,
                  boolean sorted)

Method Detail

getExecutionInfo

public Object getExecutionInfo()

isFitted

public boolean isFitted()

isSorted

public boolean isSorted()

getBackendQuery

public E getBackendQuery()