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%2Fprocedure%2Fguarded%2FGuardedAsyncProcedureWrapper.java;h=acd7f311fb011872df886b81ecfec99db2bcd96f;hb=159d04234f7fbf7554910a154b29a5dd7bbc6068;hp=5fd1f70a683b37889445909935be4c85e72403e3;hpb=969bd23cab98a79ca9101af33334000879fb60c5;p=simantics%2Fplatform.git
diff --git a/bundles/org.simantics.db.common/src/org/simantics/db/common/procedure/guarded/GuardedAsyncProcedureWrapper.java b/bundles/org.simantics.db.common/src/org/simantics/db/common/procedure/guarded/GuardedAsyncProcedureWrapper.java
index 5fd1f70a6..acd7f311f 100644
--- a/bundles/org.simantics.db.common/src/org/simantics/db/common/procedure/guarded/GuardedAsyncProcedureWrapper.java
+++ b/bundles/org.simantics.db.common/src/org/simantics/db/common/procedure/guarded/GuardedAsyncProcedureWrapper.java
@@ -1,63 +1,63 @@
-/*******************************************************************************
- * 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.procedure.guarded;
-
-import java.util.concurrent.atomic.AtomicBoolean;
-import java.util.concurrent.atomic.AtomicInteger;
-
-import org.simantics.db.AsyncReadGraph;
-import org.simantics.db.common.procedure.adapter.AsyncProcedureAdapter;
-import org.simantics.db.procedure.AsyncProcedure;
-import org.simantics.db.procedure.Procedure;
-
-/**
- * An asynchronous database callback procedure that is guarded against multiple
- * invocations to {@link Procedure#execute(Object)} and
- * {@link Procedure#exception(Throwable)}. Only the first invocation of is
- * delegated or the Nth invocation to {@link Procedure#execute(Object)} where
- * Nth is expectedResults
.
- *
- * @author Tuukka Lehtonen
- *
- * @param
- */
-public class GuardedAsyncProcedureWrapper extends AsyncProcedureAdapter {
-
- private final AsyncProcedure procedure;
- private final AtomicBoolean onceGuard = new AtomicBoolean(false);
- private final AtomicInteger resultCounter;
-
- public GuardedAsyncProcedureWrapper(AsyncProcedure procedure, int expectedResults) {
- this.procedure = procedure;
- this.resultCounter = new AtomicInteger(expectedResults);
- }
-
- @Override
- public void exception(AsyncReadGraph graph, Throwable t) {
- if (onceGuard.compareAndSet(false, true)) {
- procedure.exception(graph, t);
- }
- }
-
- @Override
- public void execute(AsyncReadGraph graph, T result) {
- int count = resultCounter.decrementAndGet();
- if (count == 0) {
- if (onceGuard.compareAndSet(false, true)) {
- procedure.execute(graph, result);
- }
- } else if (count < 0) {
- System.out.println(this + ": execute invoked more than expected (count=" + count + ", procedure=" + procedure + ")");
- }
- }
-
-}
+/*******************************************************************************
+ * 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.procedure.guarded;
+
+import java.util.concurrent.atomic.AtomicBoolean;
+import java.util.concurrent.atomic.AtomicInteger;
+
+import org.simantics.db.AsyncReadGraph;
+import org.simantics.db.common.procedure.adapter.AsyncProcedureAdapter;
+import org.simantics.db.procedure.AsyncProcedure;
+import org.simantics.db.procedure.Procedure;
+
+/**
+ * An asynchronous database callback procedure that is guarded against multiple
+ * invocations to {@link Procedure#execute(Object)} and
+ * {@link Procedure#exception(Throwable)}. Only the first invocation of is
+ * delegated or the Nth invocation to {@link Procedure#execute(Object)} where
+ * Nth is expectedResults
.
+ *
+ * @author Tuukka Lehtonen
+ *
+ * @param
+ */
+public class GuardedAsyncProcedureWrapper extends AsyncProcedureAdapter {
+
+ private final AsyncProcedure procedure;
+ private final AtomicBoolean onceGuard = new AtomicBoolean(false);
+ private final AtomicInteger resultCounter;
+
+ public GuardedAsyncProcedureWrapper(AsyncProcedure procedure, int expectedResults) {
+ this.procedure = procedure;
+ this.resultCounter = new AtomicInteger(expectedResults);
+ }
+
+ @Override
+ public void exception(AsyncReadGraph graph, Throwable t) {
+ if (onceGuard.compareAndSet(false, true)) {
+ procedure.exception(graph, t);
+ }
+ }
+
+ @Override
+ public void execute(AsyncReadGraph graph, T result) {
+ int count = resultCounter.decrementAndGet();
+ if (count == 0) {
+ if (onceGuard.compareAndSet(false, true)) {
+ procedure.execute(graph, result);
+ }
+ } else if (count < 0) {
+ System.out.println(this + ": execute invoked more than expected (count=" + count + ", procedure=" + procedure + ")");
+ }
+ }
+
+}