X-Git-Url: https://gerrit.simantics.org/r/gitweb?a=blobdiff_plain;f=bundles%2Forg.simantics.db.common%2Fsrc%2Forg%2Fsimantics%2Fdb%2Fcommon%2Frequest%2FPossibleStatementWithNamedPredicate.java;fp=bundles%2Forg.simantics.db.common%2Fsrc%2Forg%2Fsimantics%2Fdb%2Fcommon%2Frequest%2FPossibleStatementWithNamedPredicate.java;h=e17d8d9632f5722629f76876bfc4c3bea5b661d0;hb=969bd23cab98a79ca9101af33334000879fb60c5;hp=0000000000000000000000000000000000000000;hpb=866dba5cd5a3929bbeae85991796acb212338a08;p=simantics%2Fplatform.git diff --git a/bundles/org.simantics.db.common/src/org/simantics/db/common/request/PossibleStatementWithNamedPredicate.java b/bundles/org.simantics.db.common/src/org/simantics/db/common/request/PossibleStatementWithNamedPredicate.java new file mode 100644 index 000000000..e17d8d963 --- /dev/null +++ b/bundles/org.simantics.db.common/src/org/simantics/db/common/request/PossibleStatementWithNamedPredicate.java @@ -0,0 +1,42 @@ +/******************************************************************************* + * Copyright (c) 2007, 2010 Association for Decentralized Information Management + * in Industry THTH ry. + * All rights reserved. This program and the accompanying materials + * are made available under the terms of the Eclipse Public License v1.0 + * which accompanies this distribution, and is available at + * http://www.eclipse.org/legal/epl-v10.html + * + * Contributors: + * VTT Technical Research Centre of Finland - initial API and implementation + *******************************************************************************/ +package org.simantics.db.common.request; + +import org.simantics.db.ReadGraph; +import org.simantics.db.Resource; +import org.simantics.db.Statement; +import org.simantics.db.exception.DatabaseException; +import org.simantics.layer0.Layer0; + +final public class PossibleStatementWithNamedPredicate extends TernaryRead { + + public PossibleStatementWithNamedPredicate(Resource resource, Resource predicate, String name) { + super(resource, predicate, name); + } + + @Override + public Statement perform(ReadGraph graph) throws DatabaseException { + Layer0 b = Layer0.getInstance(graph); + Statement result = null; + for(Resource predicate : graph.getPredicates(parameter)) { + if(graph.isSubrelationOf(predicate, parameter2)) { + String name = graph.getPossibleRelatedValue(predicate, b.HasName); + if(parameter3.equals(name)) { + if(result != null) return null; + result = graph.getPossibleStatement(parameter, predicate); + } + } + } + return result; + } + +}