Revision: 1460
http://svn.sourceforge.net/spring-rich-c/?rev=1460&view=rev
Author: jhoskens
Date: 2006-09-28 04:09:47 -0700 (Thu, 28 Sep 2006)
Log Message:
-----------
refactoring modules: ApplicationServicesLocator and ApplicationServices are
used throughout the whole project
Added Paths:
-----------
trunk/spring-richclient/core/src/main/java/org/springframework/richclient/application/ApplicationServices.java
trunk/spring-richclient/core/src/main/java/org/springframework/richclient/application/ApplicationServicesLocator.java
Copied:
trunk/spring-richclient/core/src/main/java/org/springframework/richclient/application/ApplicationServices.java
(from rev 1457,
trunk/spring-richclient/support/src/main/java/org/springframework/richclient/application/ApplicationServices.java)
===================================================================
---
trunk/spring-richclient/core/src/main/java/org/springframework/richclient/application/ApplicationServices.java
(rev 0)
+++
trunk/spring-richclient/core/src/main/java/org/springframework/richclient/application/ApplicationServices.java
2006-09-28 11:09:47 UTC (rev 1460)
@@ -0,0 +1,44 @@
+/*
+ * Copyright 2002-2004 the original author or authors.
+ *
+ * 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.springframework.richclient.application;
+
+/**
+ * Service locator
+ *
+ * @author Larry Streepy
+ */
+public interface ApplicationServices {
+
+ /**
+ * Get a service of the requested type (class).
+ * <p>
+ * TODO change to use a more specific exception like
NoServiceImplementationException
+ *
+ * @param serviceType Type of service to locate
+ * @return service implementation
+ * @throws UnsupportedOperationException if there is no service known for
the given
+ * serviceType.
+ */
+ Object getService( Class serviceType );
+
+ /**
+ * Determine if a service of the requested type is available.
+ *
+ * @param serviceType Type of service to locate
+ * @return true if service is available, false if not
+ */
+ boolean containsService( Class serviceType );
+}
Property changes on:
trunk/spring-richclient/core/src/main/java/org/springframework/richclient/application/ApplicationServices.java
___________________________________________________________________
Name: svn:keywords
+ Author Date Id Revision
Name: svn:eol-style
+ native
Copied:
trunk/spring-richclient/core/src/main/java/org/springframework/richclient/application/ApplicationServicesLocator.java
(from rev 1457,
trunk/spring-richclient/support/src/main/java/org/springframework/richclient/application/ApplicationServicesLocator.java)
===================================================================
---
trunk/spring-richclient/core/src/main/java/org/springframework/richclient/application/ApplicationServicesLocator.java
(rev 0)
+++
trunk/spring-richclient/core/src/main/java/org/springframework/richclient/application/ApplicationServicesLocator.java
2006-09-28 11:09:47 UTC (rev 1460)
@@ -0,0 +1,90 @@
+package org.springframework.richclient.application;
+
+import org.apache.commons.logging.Log;
+import org.apache.commons.logging.LogFactory;
+import org.springframework.util.Assert;
+
+/**
+ * This class provides a singleton model for accessing the configured
ApplicationServices
+ * object.
+ *
+ * @author Larry Streepy
+ *
+ */
+public class ApplicationServicesLocator {
+
+ private static final Log logger =
LogFactory.getLog(ApplicationServicesLocator.class);
+
+ /** The singleton instance. */
+ private static ApplicationServicesLocator INSTANCE;
+
+ /** The configured ApplicationServices. */
+ private ApplicationServices applicationServices;
+
+ /**
+ * Default Constructor.
+ */
+ public ApplicationServicesLocator() {
+ load(this);
+ }
+
+ /**
+ * Constructor.
+ *
+ * @param applicationServices instance to use
+ */
+ public ApplicationServicesLocator( ApplicationServices applicationServices
) {
+ setApplicationServices(applicationServices);
+ load(this);
+ }
+
+ /**
+ * Return the single ApplicationServicesLocator instance.
+ *
+ * @return The instance
+ */
+ public static ApplicationServicesLocator instance() {
+ Assert.state(INSTANCE != null, "The application services locator
instance has not yet been initialized.");
+ return INSTANCE;
+ }
+
+ /**
+ * Load the single ApplicationServicesLocator instance.
+ *
+ * @param instance The ApplicationServicesLocator
+ */
+ public static void load( ApplicationServicesLocator instance ) {
+ if( INSTANCE != null ) {
+ logger.info("Replacing existing ApplicationServicesLocator
instance with: " + instance);
+ }
+ INSTANCE = instance;
+ }
+
+ /**
+ * Return a global service locator for application services.
+ *
+ * @return The application services locator.
+ */
+ public static ApplicationServices services() {
+ return instance().getApplicationServices();
+ }
+
+ /**
+ * Set the ApplicationServices instance to use
+ *
+ * @param applicationServices
+ */
+ public void setApplicationServices( ApplicationServices
applicationServices ) {
+ this.applicationServices = applicationServices;
+ }
+
+ /**
+ * Get the ApplicationServices to use
+ *
+ * @return ApplicationServices instance
+ */
+ public ApplicationServices getApplicationServices() {
+ return applicationServices;
+ }
+
+}
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