diff options
Diffstat (limited to 'jpa/plugins/org.eclipse.jpt.core/src/org/eclipse/jpt/core/internal/utility/jdt/ShortCircuitAnnotationElementAdapter.java')
-rw-r--r-- | jpa/plugins/org.eclipse.jpt.core/src/org/eclipse/jpt/core/internal/utility/jdt/ShortCircuitAnnotationElementAdapter.java | 104 |
1 files changed, 0 insertions, 104 deletions
diff --git a/jpa/plugins/org.eclipse.jpt.core/src/org/eclipse/jpt/core/internal/utility/jdt/ShortCircuitAnnotationElementAdapter.java b/jpa/plugins/org.eclipse.jpt.core/src/org/eclipse/jpt/core/internal/utility/jdt/ShortCircuitAnnotationElementAdapter.java deleted file mode 100644 index 968658eea3..0000000000 --- a/jpa/plugins/org.eclipse.jpt.core/src/org/eclipse/jpt/core/internal/utility/jdt/ShortCircuitAnnotationElementAdapter.java +++ /dev/null @@ -1,104 +0,0 @@ -/******************************************************************************* - * Copyright (c) 2006, 2008 Oracle. 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: - * Oracle - initial API and implementation - ******************************************************************************/ -package org.eclipse.jpt.core.internal.utility.jdt; - -import org.eclipse.jdt.core.dom.ASTNode; -import org.eclipse.jdt.core.dom.CompilationUnit; -import org.eclipse.jdt.core.dom.Expression; -import org.eclipse.jpt.core.utility.jdt.AnnotationElementAdapter; -import org.eclipse.jpt.core.utility.jdt.DeclarationAnnotationElementAdapter; -import org.eclipse.jpt.core.utility.jdt.Member; -import org.eclipse.jpt.utility.internal.StringTools; - -/** - * Wrap another annotation element adapter and short-circuit the - * #setValue method if the value has not changed. - */ -public class ShortCircuitAnnotationElementAdapter<T> - implements AnnotationElementAdapter<T> -{ - /** the wrapped adapter */ - private final AnnotationElementAdapter<T> adapter; - - - // ********** constructor ********** - - public ShortCircuitAnnotationElementAdapter(Member member, DeclarationAnnotationElementAdapter<T> daea) { - this(new MemberAnnotationElementAdapter<T>(member, daea)); - } - - public ShortCircuitAnnotationElementAdapter(AnnotationElementAdapter<T> adapter) { - super(); - this.adapter = adapter; - } - - - // ********** AnnotationElementAdapter implementation ********** - - public T getValue() { - return this.adapter.getValue(); - } - - public T getValue(CompilationUnit astRoot) { - return this.adapter.getValue(astRoot); - } - - public void setValue(T value) { - this.setValue(this.adapter.getValue(), value); - } - - public Expression getExpression(CompilationUnit astRoot) { - return this.adapter.getExpression(astRoot); - } - - public ASTNode getAstNode(CompilationUnit astRoot) { - return this.adapter.getAstNode(astRoot); - } - - @Override - public String toString() { - return StringTools.buildToStringFor(this, this.adapter); - } - - - // ********** internal methods ********** - - /** - * set the adapter's value to the specified new value if it - * is different from the specified old value - */ - protected void setValue(T oldValue, T newValue) { - if (oldValue == null) { - if (newValue == null) { // null => null - // do nothing - } else { // null => object - this.adapter.setValue(newValue); - } - } else { - if (newValue == null) { // object => null - this.adapter.setValue(newValue); - } else { // object => object - if (this.valuesAreEqual(oldValue, newValue)) { - // do nothing - } else { - this.adapter.setValue(newValue); - } - } - } - } - - /** - * both values are non-null when this method is called - */ - protected boolean valuesAreEqual(T oldValue, T newValue) { - return newValue.equals(oldValue); - } - -} |