X-Git-Url: https://gerrit.simantics.org/r/gitweb?a=blobdiff_plain;ds=sidebyside;f=bundles%2Forg.simantics.db.common%2Fsrc%2Forg%2Fsimantics%2Fdb%2Fcommon%2Frequest%2FWriteRequest.java;fp=bundles%2Forg.simantics.db.common%2Fsrc%2Forg%2Fsimantics%2Fdb%2Fcommon%2Frequest%2FWriteRequest.java;h=76ab2016d80cc3fc230484941ac2b075e844a5fb;hb=969bd23cab98a79ca9101af33334000879fb60c5;hp=0000000000000000000000000000000000000000;hpb=866dba5cd5a3929bbeae85991796acb212338a08;p=simantics%2Fplatform.git diff --git a/bundles/org.simantics.db.common/src/org/simantics/db/common/request/WriteRequest.java b/bundles/org.simantics.db.common/src/org/simantics/db/common/request/WriteRequest.java new file mode 100644 index 000000000..76ab2016d --- /dev/null +++ b/bundles/org.simantics.db.common/src/org/simantics/db/common/request/WriteRequest.java @@ -0,0 +1,121 @@ +/******************************************************************************* + * 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.AsyncRequestProcessor; +import org.simantics.db.Operation; +import org.simantics.db.RequestProcessor; +import org.simantics.db.VirtualGraph; +import org.simantics.db.exception.DatabaseException; +import org.simantics.db.procedure.Procedure; +import org.simantics.db.request.UndoTraits; +import org.simantics.db.request.Write; +import org.simantics.db.request.WriteInterface; +import org.simantics.utils.datastructures.Callback; + + +/** + * TODO: fix this javadoc to document the correct class!! + * + * Usage samples: + * + *
+ * Synchronous read without checked exceptions: + *
+ *+ * Resource r = new SimpleReadGraphRequest<Resource>(session) { + * {@code @Override} + * public Resource run(Graph g) { + * Resource r = doSomethingThatMayFail(); + * return r; + * } + * }.sync(); + *+ * + *
+ * Synchronous read with a selected checked exception that may be thrown: + *
+ *+ * Resource r = new SimpleReadGraphRequest<Resource>(session) { + * {@code @Override} + * public Resource run(Graph g) throws CheckedException { + * Resource r = doSomethingThatMayFailWithCheckedException(); + * return r; + * } + * }.sync(CheckedException.class); + *+ * + *
+ * Asynchronous read with a completed() method for examining the result: + *
+ *+ * Resource r = new SimpleReadGraphRequest<Resource>(session) { + * {@code @Override} + * public Resource run(Graph g) { + * Resource r = doSomethingThatMayFail(); + * return r; + * } + * public void completed(Resource result) { + * // quickly dispatch the result somewhere, do nothing serious in this code. + * } + * }.async(); + *+ * + * @param