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Diffstat (limited to 'common/plugins/org.eclipse.jpt.common.utility/src/org/eclipse/jpt/common/utility/BooleanReference.java')
-rw-r--r--common/plugins/org.eclipse.jpt.common.utility/src/org/eclipse/jpt/common/utility/BooleanReference.java166
1 files changed, 0 insertions, 166 deletions
diff --git a/common/plugins/org.eclipse.jpt.common.utility/src/org/eclipse/jpt/common/utility/BooleanReference.java b/common/plugins/org.eclipse.jpt.common.utility/src/org/eclipse/jpt/common/utility/BooleanReference.java
deleted file mode 100644
index 0a73528e4e..0000000000
--- a/common/plugins/org.eclipse.jpt.common.utility/src/org/eclipse/jpt/common/utility/BooleanReference.java
+++ /dev/null
@@ -1,166 +0,0 @@
-/*******************************************************************************
- * Copyright (c) 2010, 2012 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.common.utility;
-
-import java.io.Serializable;
-
-/**
- * Interface for a container for holding a <code>boolean</code> that cannot be
- * changed by clients.
- * <p>
- * Provisional API: This interface is part of an interim API that is still
- * under development and expected to change significantly before reaching
- * stability. It is available at this early stage to solicit feedback from
- * pioneering adopters on the understanding that any code that uses this API
- * will almost certainly be broken (repeatedly) as the API evolves.
- */
-public interface BooleanReference {
-
- /**
- * Return the current <code>boolean</code> value.
- */
- boolean getValue();
-
- /**
- * Return whether the current <code>boolean</code> value is equal to the
- * specified value.
- */
- boolean is(boolean value);
-
- /**
- * Return whether the current <code>boolean</code> value is not equal to
- * the specified value.
- */
- boolean isNot(boolean value);
-
- /**
- * Return whether the current <code>boolean</code> value is
- * <code>true</code>.
- */
- boolean isTrue();
-
- /**
- * Return whether the current <code>boolean</code> value is
- * <code>false</code>.
- */
- boolean isFalse();
-
-
- /**
- * Convenience method.
- */
- final class Value {
- public static BooleanReference of(boolean value) {
- return value ? True.instance() : False.instance();
- }
- }
-
-
- /**
- * Singleton implementation of the read-only boolean reference interface
- * whose value is always <code>true</code>.
- */
- final class True
- implements BooleanReference, Serializable
- {
- public static final BooleanReference INSTANCE = new True();
-
- public static BooleanReference instance() {
- return INSTANCE;
- }
-
- // ensure single instance
- private True() {
- super();
- }
-
- public boolean getValue() {
- return true;
- }
-
- public boolean is(boolean value) {
- return value;
- }
-
- public boolean isNot(boolean value) {
- return ! value;
- }
-
- public boolean isTrue() {
- return true;
- }
-
- public boolean isFalse() {
- return false;
- }
-
- @Override
- public String toString() {
- return "[true]"; //$NON-NLS-1$
- }
-
- private static final long serialVersionUID = 1L;
- private Object readResolve() {
- // replace this object with the singleton
- return INSTANCE;
- }
- }
-
-
- /**
- * Singleton implementation of the read-only boolean reference interface
- * whose value is always <code>false</code>.
- */
- final class False
- implements BooleanReference, Serializable
- {
- public static final BooleanReference INSTANCE = new False();
-
- public static BooleanReference instance() {
- return INSTANCE;
- }
-
- // ensure single instance
- private False() {
- super();
- }
-
- public boolean getValue() {
- return false;
- }
-
- public boolean is(boolean value) {
- return ! value;
- }
-
- public boolean isNot(boolean value) {
- return value;
- }
-
- public boolean isTrue() {
- return false;
- }
-
- public boolean isFalse() {
- return false;
- }
-
- @Override
- public String toString() {
- return "[false]"; //$NON-NLS-1$
- }
-
- private static final long serialVersionUID = 1L;
- private Object readResolve() {
- // replace this object with the singleton
- return INSTANCE;
- }
- }
-}

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