org.hypergraphdb.query

Class QueryCompile

java.lang.Object

org.hypergraphdb.query.QueryCompile

public class QueryCompile
extends Object

A controller-type of class that maintains context during the query compilation process.

Unless you are extending the querying API somehow, this class is normally not of interest to HyperGraphDB users.

Author:

Borislav Iordanov

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static interface	QueryCompile.Contract
static interface	QueryCompile.Expand

Constructor Summary

Constructors

Constructor and Description
QueryCompile()

Method Summary

Methods

Modifier and Type	Method and Description
static <SearchResult> AnalyzedQuery<SearchResult>	analyze(HyperGraph graph, HGQueryCondition condition, Map<String,Object> options)
static void	finish() Finish query compilation in this thread.
static void	parallel()
static void	start() Start query compilation in the current thread.
static QueryMetaData	toMetaData(HyperGraph graph, HGQueryCondition condition)
static <T> HGQuery<T>	translate(HyperGraph graph, HGQueryCondition condition)
static <ResultType> ConditionToQuery<ResultType>	translator(HyperGraph graph, Class<? extends HGQueryCondition> conditionType)

Methods inherited from class java.lang.Object

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

Constructor Detail

QueryCompile

public QueryCompile()

Method Detail

start

public static void start()

Start query compilation in the current thread. Make sure finish is called in a finally block.

finish

public static void finish()

Finish query compilation in this thread.

parallel

public static void parallel()

translator

public static <ResultType> ConditionToQuery<ResultType> translator(HyperGraph graph,
                                                   Class<? extends HGQueryCondition> conditionType)

translate

public static <T> HGQuery<T> translate(HyperGraph graph,
                       HGQueryCondition condition)

toMetaData

public static QueryMetaData toMetaData(HyperGraph graph,
                       HGQueryCondition condition)

analyze

public static <SearchResult> AnalyzedQuery<SearchResult> analyze(HyperGraph graph,
                                                 HGQueryCondition condition,
                                                 Map<String,Object> options)