org.hypergraphdb
Class HGQuery<SearchResult>

java.lang.Object
  org.hypergraphdb.HGQuery<SearchResult>

All Implemented Interfaces:

HGGraphHolder

Direct Known Subclasses:

ExpressionBasedQuery, IndexBasedQuery, IndexScanQuery, IntersectionQuery, KeyBasedQuery, PipeQuery, PredicateBasedFilter, ResultMapQuery, TraversalBasedQuery, UnionQuery

public abstract class HGQuery<SearchResult>
extends java.lang.Object
implements HGGraphHolder

The HGQuery class represents an arbitrary query to the hypergraph database. Queries can be defined either by using the query language, or they can be built directly from query condition instances.

Author:

Borislav Iordanov

Nested Class Summary

static class

HGQuery.hg This class serves as a namespace to a set of syntactically concise functions for constructing HyperGraph query conditions and performing HyperGraph queries.

Field Summary

static HGQuery<java.lang.Object>

NOP

Constructor Summary

HGQuery()

Method Summary

abstract HGSearchResult<SearchResult>	execute()
HyperGraph	getHyperGraph()
static <SearchResult> HGQuery<SearchResult>	make(HyperGraph hg, HGQueryCondition condition)
void	setHyperGraph(HyperGraph graph) During load time, set the HyperGraph instance to which this atom belongs.

Methods inherited from class java.lang.Object

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

Field Detail

NOP

public static final HGQuery<java.lang.Object> NOP

Constructor Detail

HGQuery

public HGQuery()

Method Detail

make

public static <SearchResult> HGQuery<SearchResult> make(HyperGraph hg,
                                                        HGQueryCondition condition)

getHyperGraph

public HyperGraph getHyperGraph()

setHyperGraph

public void setHyperGraph(HyperGraph graph)

Description copied from interface: HGGraphHolder

During load time, set the HyperGraph instance to which this atom belongs.

Specified by:

setHyperGraph in interface HGGraphHolder

execute

public abstract HGSearchResult<SearchResult> execute()