diff options
Diffstat (limited to 'tags/java-M1-20060518/java/sca/containers/container.java/src/main/java/org/apache/tuscany/container/java/invocation/ScopedJavaComponentInvoker.java')
-rw-r--r-- | tags/java-M1-20060518/java/sca/containers/container.java/src/main/java/org/apache/tuscany/container/java/invocation/ScopedJavaComponentInvoker.java | 89 |
1 files changed, 0 insertions, 89 deletions
diff --git a/tags/java-M1-20060518/java/sca/containers/container.java/src/main/java/org/apache/tuscany/container/java/invocation/ScopedJavaComponentInvoker.java b/tags/java-M1-20060518/java/sca/containers/container.java/src/main/java/org/apache/tuscany/container/java/invocation/ScopedJavaComponentInvoker.java deleted file mode 100644 index 85d72b4b0d..0000000000 --- a/tags/java-M1-20060518/java/sca/containers/container.java/src/main/java/org/apache/tuscany/container/java/invocation/ScopedJavaComponentInvoker.java +++ /dev/null @@ -1,89 +0,0 @@ -/** - * - * Copyright 2005 The Apache Software Foundation or its licensors, as applicable. - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - */ -package org.apache.tuscany.container.java.invocation; - -import org.apache.tuscany.core.context.QualifiedName; -import org.apache.tuscany.core.context.ScopeContext; -import org.apache.tuscany.core.context.TargetException; - -import java.lang.reflect.Method; - -/** - * Uses a scope container to resolve an implementation instance based on the current thread context - * - * @version $Rev$ $Date$ - */ -public class ScopedJavaComponentInvoker extends AbstractJavaComponentInvoker { - - private ScopeContext container; - - private QualifiedName name; - - private Object target; - - public boolean cacheable; - - - /** - * Creates a new invoker - * - * @param serviceName the name of the component/service pair to invoke - * @param operation the operation the invoker is associated with - * @param scopeContext the scope context the component is resolved in - * @param cacheable Sets whether the target service instance may be cached by the invoker. This is a possible optimization - * when a wire is configured for a "down-scope" reference, i.e. a reference from a source of a shorter - * lifetime to a source of greater lifetime. - */ - public ScopedJavaComponentInvoker(QualifiedName serviceName, Method operation, ScopeContext scopeContext, boolean cacheable) { - super(operation); - assert (serviceName != null) : "No service name specified"; - assert (scopeContext != null) : "No scope scopeContext specified"; - name = serviceName; - this.container = scopeContext; - this.cacheable = cacheable; - } - - /** - * Returns whether the target is cacheable. - */ - public boolean isCacheable() { - return cacheable; - } - - /** - * Resolves the target service instance or returns a cached one - */ - protected Object getInstance() throws TargetException { - if (!cacheable) { - return container.getInstance(name); - } else { - if (target == null) { - target = container.getInstance(name); - } - return target; - } - } - - public Object clone() throws CloneNotSupportedException { - ScopedJavaComponentInvoker invoker = (ScopedJavaComponentInvoker) super.clone(); - invoker.target = null; - invoker.cacheable = this.cacheable; - invoker.container = this.container; - invoker.name = this.name; - return invoker; - } -} |