com.db4o.internal.query.processor

Class QQuery

java.lang.Object

com.db4o.internal.query.processor.QQueryBase

com.db4o.internal.query.processor.QQuery

All Implemented Interfaces:

InternalQuery, Query, Unversioned

public class QQuery
extends QQueryBase
implements Query

QQuery is the users hook on our graph. A QQuery is defined by it's constraints.

Nested Class Summary

Nested classes/interfaces inherited from class com.db4o.internal.query.processor.QQueryBase

QQueryBase.CreateCandidateCollectionResult

Constructor Summary

Constructors

Constructor and Description
QQuery()
QQuery(Transaction a_trans, QQuery a_parent, java.lang.String a_field)

Method Summary

Methods

Modifier and Type	Method and Description
Query	sortBy(java.util.Comparator comparator) Sort the resulting ObjectSet by the given comparator.

Methods inherited from class com.db4o.internal.query.processor.QQueryBase

addOrdering, captureQueryResultConfig, checkConstraintsEvaluationMode, comparator, constrain, constraints, container, createCandidateCollection, descend, evaluationMode, evaluationMode, execute, executeLazy, executeLocal, executeQuery, executeSnapshot, getQueryResult, iterateConstraints, marshall, orderAscending, orderDescending, orderings, parent, prefetchCount, prefetchDepth, requiresSort, sortBy, stream, streamLock, toString, transaction, triggeringQueryEvents, unmarshall

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.db4o.query.Query

constrain, constraints, descend, execute, orderAscending, orderDescending, sortBy

Constructor Detail

QQuery

public QQuery()

QQuery

public QQuery(Transaction a_trans,
      QQuery a_parent,
      java.lang.String a_field)

Method Detail

sortBy

public Query sortBy(java.util.Comparator comparator)

Description copied from interface: Query

Sort the resulting ObjectSet by the given comparator.

Specified by:

sortBy in interface Query

Parameters:

comparator - The comparator to apply.

Returns:

this Query object to allow the chaining of method calls.