org.hypergraphdb.query.impl

Class IndexScanQuery<Key,Value>

java.lang.Object

org.hypergraphdb.HGQuery<Value>

org.hypergraphdb.query.impl.IndexScanQuery<Key,Value>

All Implemented Interfaces:

HGGraphHolder

public class IndexScanQuery<Key,Value>
extends HGQuery<Value>

This queries simply scans all elements in a given index. The result of execute is actually HGRandomAccessResult. One can scan either the keys or the values of the HGIndex based on the returnKeys boolean constructor parameter.

Author:

Borislav Iordanov

Nested Class Summary

Nested classes/interfaces inherited from class org.hypergraphdb.HGQuery

HGQuery.hg

Field Summary

Fields inherited from class org.hypergraphdb.HGQuery

ctx, graph

Constructor Summary

Constructors

Constructor and Description
IndexScanQuery(HGIndex<Key,Value> idx, boolean returnKeys)

Method Summary

Methods

Modifier and Type	Method and Description
HGSearchResult	execute() Execute the query and return the result set.

Methods inherited from class org.hypergraphdb.HGQuery

compile, findAll, findInSet, findOne, getHyperGraph, initialValue, initialVar, make, make, NOP, setHyperGraph, var, var

Methods inherited from class java.lang.Object

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

Constructor Detail

IndexScanQuery

public IndexScanQuery(HGIndex<Key,Value> idx,
              boolean returnKeys)

Method Detail

execute

public HGSearchResult execute()

Description copied from class: HGQuery

Execute the query and return the result set. Note that queries are lazily executed so that results are actually obtained when one iterates (using the next and prev of the returned object).

Specified by:

execute in class HGQuery<Value>