com.thinkaurelius.titan.diskstorage.keycolumnvalue

Class KeyRangeQuery

java.lang.Object

com.thinkaurelius.titan.graphdb.query.BaseQuery

com.thinkaurelius.titan.diskstorage.keycolumnvalue.SliceQuery

com.thinkaurelius.titan.diskstorage.keycolumnvalue.KeyRangeQuery

All Implemented Interfaces:

BackendQuery<SliceQuery>, Query

public class KeyRangeQuery
extends SliceQuery

Extends a SliceQuery to express a range for columns and a range for keys. Selects each key on the interval [keyStart inclusive, keyEnd exclusive) for which there exists at least one column between [sliceStart inclusive, sliceEnd exclusive).

The limit of a KeyRangeQuery applies to the maximum number of columns returned per key which fall into the specified slice range and NOT to the maximum number of keys returned.

Author:

Matthias Broecheler (me@matthiasb.com)

Field Summary

Fields inherited from class com.thinkaurelius.titan.diskstorage.keycolumnvalue.SliceQuery

DEFAULT_STATIC

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

NO_LIMIT

Constructor Summary

Constructors

Constructor and Description
KeyRangeQuery(StaticBuffer keyStart, StaticBuffer keyEnd, SliceQuery query)
KeyRangeQuery(StaticBuffer keyStart, StaticBuffer keyEnd, StaticBuffer sliceStart, StaticBuffer sliceEnd)

Method Summary

Methods

Modifier and Type	Method and Description
boolean	equals(Object other)
StaticBuffer	getKeyEnd()
StaticBuffer	getKeyStart()
int	hashCode()
KeyRangeQuery	setLimit(int limit) Sets the limit of the query if it wasn't specified in the constructor
boolean	subsumes(KeyRangeQuery oth)
String	toString()
KeyRangeQuery	updateLimit(int newLimit) Creates a new query identical to the current one but with the specified limit.

Methods inherited from class com.thinkaurelius.titan.diskstorage.keycolumnvalue.SliceQuery

getSliceEnd, getSliceStart, getSubset, pointRange, subsumes

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

getLimit, hasLimit

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

KeyRangeQuery

public KeyRangeQuery(StaticBuffer keyStart,
             StaticBuffer keyEnd,
             StaticBuffer sliceStart,
             StaticBuffer sliceEnd)

KeyRangeQuery

public KeyRangeQuery(StaticBuffer keyStart,
             StaticBuffer keyEnd,
             SliceQuery query)

Method Detail

getKeyStart

public StaticBuffer getKeyStart()

getKeyEnd

public StaticBuffer getKeyEnd()

setLimit

public KeyRangeQuery setLimit(int limit)

Description copied from class: BaseQuery

Sets the limit of the query if it wasn't specified in the constructor

Overrides:

setLimit in class SliceQuery

Returns:

updateLimit

public KeyRangeQuery 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<SliceQuery>

Overrides:

updateLimit in class SliceQuery

Returns:

hashCode

public int hashCode()

Overrides:

hashCode in class SliceQuery

equals

public boolean equals(Object other)

Overrides:

equals in class SliceQuery

subsumes

public boolean subsumes(KeyRangeQuery oth)

toString

public String toString()

Overrides:

toString in class Object