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Diffstat (limited to 'bundles/org.eclipse.wst.sse.core/src/org/eclipse/wst/sse/core/internal/model/FactoryRegistry.java')
-rw-r--r-- | bundles/org.eclipse.wst.sse.core/src/org/eclipse/wst/sse/core/internal/model/FactoryRegistry.java | 179 |
1 files changed, 0 insertions, 179 deletions
diff --git a/bundles/org.eclipse.wst.sse.core/src/org/eclipse/wst/sse/core/internal/model/FactoryRegistry.java b/bundles/org.eclipse.wst.sse.core/src/org/eclipse/wst/sse/core/internal/model/FactoryRegistry.java deleted file mode 100644 index f536729024..0000000000 --- a/bundles/org.eclipse.wst.sse.core/src/org/eclipse/wst/sse/core/internal/model/FactoryRegistry.java +++ /dev/null @@ -1,179 +0,0 @@ -/******************************************************************************* - * Copyright (c) 2001, 2004 IBM Corporation and others. - * 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: - * IBM Corporation - initial API and implementation - * Jens Lukowski/Innoopract - initial renaming/restructuring - * - *******************************************************************************/ -package org.eclipse.wst.sse.core.internal.model; - - - -import java.util.ArrayList; -import java.util.List; - -import org.eclipse.wst.sse.core.internal.Logger; -import org.eclipse.wst.sse.core.internal.provisional.INodeAdapterFactory; - - -/** - * This class simply maintains the list of factories and returns singleton - * instances of them. Some "built in" types are automatically created form - * FactoryConfig, if not found registerd, but normally clients can/should - * register their own factories. - * - * Not intended for clients to subclass or instantiate. - * - */ -public final class FactoryRegistry { - - private List factories; - - /** - * intentionally default access - */ - FactoryRegistry() { - super(); - - } - - private List _getFactories() { - - if (factories == null) { - // may need to use java.util.Collections.synchronizedList() if - // syncronization becomes - // necessary (and if so, remember to synchronize on factories) - factories = new ArrayList(); - } - return factories; - - } - - public void addFactory(INodeAdapterFactory factory) { - _getFactories().add(factory); - } - - public void clearFactories() { - factories.clear(); - } - - /* - * @see FactoryRegistry#contains(Object) - */ - public boolean contains(Object type) { - boolean result = false; - // note: we're not using cloned list, so strictly speaking - // is not thread safe. - List internalList = _getFactories(); - for (int i = 0; i < internalList.size(); i++) { - INodeAdapterFactory factory = (INodeAdapterFactory) internalList.get(i); - if (factory.isFactoryForType(type)) { - result = true; - break; - } - } - return result; - } - - /** - * Returns a shallow copy of the list of factories in the registry. Note: - * this can not be used to add/remove factories. Its primarily provided - * for those few cases where a list of factories must be copied from one - * model and added to another. - */ - public List getFactories() { - // note: for object integrity, we don't let anyone get - // our main list (so they have to add through addFactory), - // but we will return a shallow "cloned" list. - List factoryList = new ArrayList(_getFactories()); - return factoryList; - } - - /** - * This method is a not a pure resistry. Factories retrieved based on - * their response to "isFactoryForType(type)". Note that if there is more - * than one factory that can answer 'true' that the most recently added - * factory is used. - */ - public INodeAdapterFactory getFactoryFor(Object type) { - - INodeAdapterFactory result = null; - if (factories == null) - return null; - int listSize = factories.size(); - for (int i = listSize - 1; i >= 0; i--) { - // It is the adapter factories responsibility to answer - // isFactoryForType so it gets choosen. - // Notice we are going through the list backwards to get the - // factory added last. - INodeAdapterFactory a = (INodeAdapterFactory) factories.get(i); - if (a.isFactoryForType(type)) { - result = a; - break; - } - } - return result; - - } - - /** - * - */ - public void release() { - // modified to work on copy of list, for V5PTF1 - // send release to local copy of list - // of factories, since some factories, during - // their release function, may remove - // themselves from the registry. - List localList = getFactories(); - for (int i = 0; i < localList.size(); i++) { - INodeAdapterFactory a = (INodeAdapterFactory) localList.get(i); - // To help bullet proof code, we'll catch and log - // any messages thrown by factories during release, - // but we'll attempt to keep going. - // In nearly all cases, though, such errors are - // severe for product/client, and need to be fixed. - try { - a.release(); - } - catch (Exception e) { - Logger.logException("Program problem releasing factory" + a, e); //$NON-NLS-1$ - } - } - } - - /** - * Removes a factory if it can be retrieved by getFactoryFor(type). If - * there is more than one, all are removed. If there is none, the call - * simply returns (that is, it is not considered an error). - */ - public void removeFactoriesFor(java.lang.Object type) { - if (factories != null) { - int listSize = factories.size(); - // we'll go backwards through list, since we're removing, so - // 'size' change won't matter. - // Note: I'm assuming other items in the collection do not change - // position - // simply because another was removed. - for (int i = listSize - 1; i >= 0; i--) { - // It is the adapter factories responsibility to answer - // isFactoryForType so it gets choosen. - INodeAdapterFactory a = (INodeAdapterFactory) factories.get(i); - if (a.isFactoryForType(type)) { - factories.remove(a); - } - } - } - } - - public void removeFactory(INodeAdapterFactory factory) { - _getFactories().remove(factory); - - } - -} |