-/*******************************************************************************\r
- * Copyright (c) 2007, 2010 Association for Decentralized Information Management\r
- * in Industry THTH ry.\r
- * All rights reserved. This program and the accompanying materials\r
- * are made available under the terms of the Eclipse Public License v1.0\r
- * which accompanies this distribution, and is available at\r
- * http://www.eclipse.org/legal/epl-v10.html\r
- *\r
- * Contributors:\r
- * VTT Technical Research Centre of Finland - initial API and implementation\r
- *******************************************************************************/\r
-package org.simantics.db.common.request;\r
-\r
-import org.simantics.db.AsyncRequestProcessor;\r
-import org.simantics.db.Operation;\r
-import org.simantics.db.RequestProcessor;\r
-import org.simantics.db.VirtualGraph;\r
-import org.simantics.db.exception.DatabaseException;\r
-import org.simantics.db.procedure.Procedure;\r
-import org.simantics.db.request.UndoTraits;\r
-import org.simantics.db.request.Write;\r
-import org.simantics.db.request.WriteInterface;\r
-import org.simantics.utils.datastructures.Callback;\r
-\r
-\r
-/**\r
- * TODO: fix this javadoc to document the correct class!!\r
- * \r
- * Usage samples:\r
- * \r
- * <p>\r
- * Synchronous read without checked exceptions:\r
- * </p>\r
- * <pre>\r
- * Resource r = new SimpleReadGraphRequest<Resource>(session) {\r
- * {@code @Override}\r
- * public Resource run(Graph g) {\r
- * Resource r = doSomethingThatMayFail();\r
- * return r;\r
- * }\r
- * }.sync();\r
- * </pre>\r
- * \r
- * <p>\r
- * Synchronous read with a selected checked exception that may be thrown:\r
- * </p>\r
- * <pre>\r
- * Resource r = new SimpleReadGraphRequest<Resource>(session) {\r
- * {@code @Override}\r
- * public Resource run(Graph g) throws CheckedException {\r
- * Resource r = doSomethingThatMayFailWithCheckedException();\r
- * return r;\r
- * }\r
- * }.sync(CheckedException.class);\r
- * </pre>\r
- * \r
- * <p>\r
- * Asynchronous read with a completed() method for examining the result:\r
- * </p>\r
- * <pre>\r
- * Resource r = new SimpleReadGraphRequest<Resource>(session) {\r
- * {@code @Override}\r
- * public Resource run(Graph g) {\r
- * Resource r = doSomethingThatMayFail();\r
- * return r;\r
- * }\r
- * public void completed(Resource result) {\r
- * // quickly dispatch the result somewhere, do nothing serious in this code.\r
- * }\r
- * }.async();\r
- * </pre>\r
- * \r
- * @param <T> the result type\r
- */\r
-public abstract class WriteRequest implements Write, UndoTraits, WriteInterface<Object> {\r
-\r
- private final VirtualGraph provider;\r
- \r
- public WriteRequest() {\r
- this.provider = null;\r
- }\r
-\r
- public WriteRequest(VirtualGraph provider) {\r
- this.provider = provider;\r
- }\r
-\r
- @Override\r
- public void commitOk(Operation op) {\r
- }\r
-\r
- @Override\r
- final public VirtualGraph getProvider() {\r
- return provider;\r
- }\r
-\r
- @Override\r
- public UndoTraits getUndoTraits() {\r
- return this;\r
- }\r
-\r
- \r
- @Override\r
- public void request(AsyncRequestProcessor processor, final Procedure<Object> procedure) {\r
- processor.asyncRequest(this, new Callback<DatabaseException>() {\r
- \r
- @Override\r
- public void run(DatabaseException parameter) {\r
- if(parameter != null) procedure.exception(parameter);\r
- else procedure.execute(null);\r
- }\r
- \r
- });\r
- }\r
- \r
- @Override\r
- public Object request(RequestProcessor processor) throws DatabaseException {\r
- processor.syncRequest(this);\r
- return null;\r
- }\r
-\r
-}\r
+/*******************************************************************************
+ * 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:
+ *
+ * <p>
+ * Synchronous read without checked exceptions:
+ * </p>
+ * <pre>
+ * Resource r = new SimpleReadGraphRequest<Resource>(session) {
+ * {@code @Override}
+ * public Resource run(Graph g) {
+ * Resource r = doSomethingThatMayFail();
+ * return r;
+ * }
+ * }.sync();
+ * </pre>
+ *
+ * <p>
+ * Synchronous read with a selected checked exception that may be thrown:
+ * </p>
+ * <pre>
+ * Resource r = new SimpleReadGraphRequest<Resource>(session) {
+ * {@code @Override}
+ * public Resource run(Graph g) throws CheckedException {
+ * Resource r = doSomethingThatMayFailWithCheckedException();
+ * return r;
+ * }
+ * }.sync(CheckedException.class);
+ * </pre>
+ *
+ * <p>
+ * Asynchronous read with a completed() method for examining the result:
+ * </p>
+ * <pre>
+ * 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();
+ * </pre>
+ *
+ * @param <T> the result type
+ */
+public abstract class WriteRequest implements Write, UndoTraits, WriteInterface<Object> {
+
+ private final VirtualGraph provider;
+
+ public WriteRequest() {
+ this.provider = null;
+ }
+
+ public WriteRequest(VirtualGraph provider) {
+ this.provider = provider;
+ }
+
+ @Override
+ public void commitOk(Operation op) {
+ }
+
+ @Override
+ final public VirtualGraph getProvider() {
+ return provider;
+ }
+
+ @Override
+ public void request(AsyncRequestProcessor processor, final Procedure<Object> procedure) {
+ processor.asyncRequest(this, new Callback<DatabaseException>() {
+
+ @Override
+ public void run(DatabaseException parameter) {
+ if(parameter != null) procedure.exception(parameter);
+ else procedure.execute(null);
+ }
+
+ });
+ }
+
+ @Override
+ public Object request(RequestProcessor processor) throws DatabaseException {
+ processor.syncRequest(this);
+ return null;
+ }
+
+}
Code Review / simantics / platform.git / blobdiff