diff --git a/src/java/org/apache/commons/collections/decorators/AbstractSetDecorator.java b/src/java/org/apache/commons/collections/decorators/AbstractSetDecorator.java
new file mode 100644
index 000000000..c160f3c4f
--- /dev/null
+++ b/src/java/org/apache/commons/collections/decorators/AbstractSetDecorator.java
@@ -0,0 +1,93 @@
+/*
+ * $Header: /home/jerenkrantz/tmp/commons/commons-convert/cvs/home/cvs/jakarta-commons//collections/src/java/org/apache/commons/collections/decorators/Attic/AbstractSetDecorator.java,v 1.1 2003/05/07 11:19:46 scolebourne Exp $
+ * ====================================================================
+ *
+ * The Apache Software License, Version 1.1
+ *
+ * Copyright (c) 2003 The Apache Software Foundation. All rights
+ * reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the
+ * distribution.
+ *
+ * 3. The end-user documentation included with the redistribution, if
+ * any, must include the following acknowledgment:
+ * "This product includes software developed by the
+ * Apache Software Foundation (http://www.apache.org/)."
+ * Alternately, this acknowledgment may appear in the software itself,
+ * if and wherever such third-party acknowledgments normally appear.
+ *
+ * 4. The names "The Jakarta Project", "Commons", and "Apache Software
+ * Foundation" must not be used to endorse or promote products derived
+ * from this software without prior written permission. For written
+ * permission, please contact apache@apache.org.
+ *
+ * 5. Products derived from this software may not be called "Apache"
+ * nor may "Apache" appear in their names without prior written
+ * permission of the Apache Software Foundation.
+ *
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
+ * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ * ====================================================================
+ *
+ * This software consists of voluntary contributions made by many
+ * individuals on behalf of the Apache Software Foundation. For more
+ * information on the Apache Software Foundation, please see
+ * AbstractSetDecorator
decorates another Set
.
+ *
+ * Methods are forwarded directly to the decorated set.
+ *
+ * @since Commons Collections 3.0
+ * @version $Revision: 1.1 $ $Date: 2003/05/07 11:19:46 $
+ *
+ * @author Stephen Colebourne
+ */
+public abstract class AbstractSetDecorator extends AbstractCollectionDecorator implements Set {
+
+ /**
+ * Constructor that wraps (not copies).
+ *
+ * @param set the set to decorate, must not be null
+ * @throws IllegalArgumentException if set is null
+ */
+ protected AbstractSetDecorator(Set set) {
+ super(set);
+ }
+
+ /**
+ * Gets the set being decorated.
+ *
+ * @return the decorated set
+ */
+ protected Set getSet() {
+ return (Set) getCollection();
+ }
+
+}
diff --git a/src/java/org/apache/commons/collections/decorators/AbstractSortedSetDecorator.java b/src/java/org/apache/commons/collections/decorators/AbstractSortedSetDecorator.java
new file mode 100644
index 000000000..9a2813ff2
--- /dev/null
+++ b/src/java/org/apache/commons/collections/decorators/AbstractSortedSetDecorator.java
@@ -0,0 +1,120 @@
+/*
+ * $Header: /home/jerenkrantz/tmp/commons/commons-convert/cvs/home/cvs/jakarta-commons//collections/src/java/org/apache/commons/collections/decorators/Attic/AbstractSortedSetDecorator.java,v 1.1 2003/05/07 11:19:46 scolebourne Exp $
+ * ====================================================================
+ *
+ * The Apache Software License, Version 1.1
+ *
+ * Copyright (c) 2003 The Apache Software Foundation. All rights
+ * reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the
+ * distribution.
+ *
+ * 3. The end-user documentation included with the redistribution, if
+ * any, must include the following acknowledgment:
+ * "This product includes software developed by the
+ * Apache Software Foundation (http://www.apache.org/)."
+ * Alternately, this acknowledgment may appear in the software itself,
+ * if and wherever such third-party acknowledgments normally appear.
+ *
+ * 4. The names "The Jakarta Project", "Commons", and "Apache Software
+ * Foundation" must not be used to endorse or promote products derived
+ * from this software without prior written permission. For written
+ * permission, please contact apache@apache.org.
+ *
+ * 5. Products derived from this software may not be called "Apache"
+ * nor may "Apache" appear in their names without prior written
+ * permission of the Apache Software Foundation.
+ *
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
+ * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ * ====================================================================
+ *
+ * This software consists of voluntary contributions made by many
+ * individuals on behalf of the Apache Software Foundation. For more
+ * information on the Apache Software Foundation, please see
+ * AbstractSortedSetDecorator
decorates another SortedSet
.
+ *
+ * Methods are forwarded directly to the decorated set.
+ *
+ * @since Commons Collections 3.0
+ * @version $Revision: 1.1 $ $Date: 2003/05/07 11:19:46 $
+ *
+ * @author Stephen Colebourne
+ */
+public abstract class AbstractSortedSetDecorator extends AbstractSetDecorator implements SortedSet {
+
+ /**
+ * Constructor that wraps (not copies).
+ *
+ * @param set the set to decorate, must not be null
+ * @throws IllegalArgumentException if set is null
+ */
+ protected AbstractSortedSetDecorator(Set set) {
+ super(set);
+ }
+
+ /**
+ * Gets the sorted set being decorated.
+ *
+ * @return the decorated set
+ */
+ protected SortedSet getSortedSet() {
+ return (SortedSet) getCollection();
+ }
+
+ //-----------------------------------------------------------------------
+ public SortedSet subSet(Object fromElement, Object toElement) {
+ return getSortedSet().subSet(fromElement, toElement);
+ }
+
+ public SortedSet headSet(Object toElement) {
+ return getSortedSet().headSet(toElement);
+ }
+
+ public SortedSet tailSet(Object fromElement) {
+ return getSortedSet().tailSet(fromElement);
+ }
+
+ public Object first() {
+ return getSortedSet().first();
+ }
+
+ public Object last() {
+ return getSortedSet().last();
+ }
+
+ public Comparator comparator() {
+ return getSortedSet().comparator();
+ }
+
+}
diff --git a/src/java/org/apache/commons/collections/decorators/PredicatedSet.java b/src/java/org/apache/commons/collections/decorators/PredicatedSet.java
new file mode 100644
index 000000000..681d98d52
--- /dev/null
+++ b/src/java/org/apache/commons/collections/decorators/PredicatedSet.java
@@ -0,0 +1,118 @@
+/*
+ * $Header: /home/jerenkrantz/tmp/commons/commons-convert/cvs/home/cvs/jakarta-commons//collections/src/java/org/apache/commons/collections/decorators/Attic/PredicatedSet.java,v 1.1 2003/05/07 11:19:46 scolebourne Exp $
+ * ====================================================================
+ *
+ * The Apache Software License, Version 1.1
+ *
+ * Copyright (c) 2003 The Apache Software Foundation. All rights
+ * reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the
+ * distribution.
+ *
+ * 3. The end-user documentation included with the redistribution, if
+ * any, must include the following acknowledgment:
+ * "This product includes software developed by the
+ * Apache Software Foundation (http://www.apache.org/)."
+ * Alternately, this acknowledgment may appear in the software itself,
+ * if and wherever such third-party acknowledgments normally appear.
+ *
+ * 4. The names "The Jakarta Project", "Commons", and "Apache Software
+ * Foundation" must not be used to endorse or promote products derived
+ * from this software without prior written permission. For written
+ * permission, please contact apache@apache.org.
+ *
+ * 5. Products derived from this software may not be called "Apache"
+ * nor may "Apache" appear in their names without prior written
+ * permission of the Apache Software Foundation.
+ *
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
+ * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ * ====================================================================
+ *
+ * This software consists of voluntary contributions made by many
+ * individuals on behalf of the Apache Software Foundation. For more
+ * information on the Apache Software Foundation, please see
+ * PredicatedSet
decorates another Set
+ * to validate additions match a specified predicate.
+ *
+ * If an object cannot be addded to the set, an IllegalArgumentException + * is thrown. + * + * @since Commons Collections 3.0 + * @version $Revision: 1.1 $ $Date: 2003/05/07 11:19:46 $ + * + * @author Stephen Colebourne + * @author Paul Jack + */ +public class PredicatedSet extends PredicatedCollection implements Set { + + /** + * Factory method to create a predicated (validating) set. + *
+ * If there are any elements already in the set being decorated, they + * are validated. + * + * @param set the set to decorate, must not be null + * @param predicate the predicate to use for validation, must not be null + * @throws IllegalArgumentException if set or predicate is null + * @throws IllegalArgumentException if the set contains invalid elements + */ + public static Set decorate(Set set, Predicate predicate) { + return new PredicatedSet(set, predicate); + } + + /** + * Constructor that wraps (not copies). + *
+ * If there are any elements already in the set being decorated, they
+ * are validated.
+ *
+ * @param set the set to decorate, must not be null
+ * @param predicate the predicate to use for validation, must not be null
+ * @throws IllegalArgumentException if set or predicate is null
+ * @throws IllegalArgumentException if the set contains invalid elements
+ */
+ protected PredicatedSet(Set set, Predicate predicate) {
+ super(set, predicate);
+ }
+
+ /**
+ * Gets the set being decorated.
+ *
+ * @return the decorated set
+ */
+ protected Set getSet() {
+ return (Set) getCollection();
+ }
+
+}
diff --git a/src/java/org/apache/commons/collections/decorators/PredicatedSortedSet.java b/src/java/org/apache/commons/collections/decorators/PredicatedSortedSet.java
new file mode 100644
index 000000000..f93336fbf
--- /dev/null
+++ b/src/java/org/apache/commons/collections/decorators/PredicatedSortedSet.java
@@ -0,0 +1,147 @@
+/*
+ * $Header: /home/jerenkrantz/tmp/commons/commons-convert/cvs/home/cvs/jakarta-commons//collections/src/java/org/apache/commons/collections/decorators/Attic/PredicatedSortedSet.java,v 1.1 2003/05/07 11:19:46 scolebourne Exp $
+ * ====================================================================
+ *
+ * The Apache Software License, Version 1.1
+ *
+ * Copyright (c) 2003 The Apache Software Foundation. All rights
+ * reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the
+ * distribution.
+ *
+ * 3. The end-user documentation included with the redistribution, if
+ * any, must include the following acknowledgment:
+ * "This product includes software developed by the
+ * Apache Software Foundation (http://www.apache.org/)."
+ * Alternately, this acknowledgment may appear in the software itself,
+ * if and wherever such third-party acknowledgments normally appear.
+ *
+ * 4. The names "The Jakarta Project", "Commons", and "Apache Software
+ * Foundation" must not be used to endorse or promote products derived
+ * from this software without prior written permission. For written
+ * permission, please contact apache@apache.org.
+ *
+ * 5. Products derived from this software may not be called "Apache"
+ * nor may "Apache" appear in their names without prior written
+ * permission of the Apache Software Foundation.
+ *
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
+ * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ * ====================================================================
+ *
+ * This software consists of voluntary contributions made by many
+ * individuals on behalf of the Apache Software Foundation. For more
+ * information on the Apache Software Foundation, please see
+ * PredicatedSortedSet
decorates another SortedSet
+ * to validate additions match a specified predicate.
+ *
+ * If an object cannot be addded to the set, an IllegalArgumentException + * is thrown. + * + * @since Commons Collections 3.0 + * @version $Revision: 1.1 $ $Date: 2003/05/07 11:19:46 $ + * + * @author Stephen Colebourne + * @author Paul Jack + */ +public class PredicatedSortedSet extends PredicatedSet implements SortedSet { + + /** + * Factory method to create a predicated (validating) sorted set. + *
+ * If there are any elements already in the set being decorated, they + * are validated. + * + * @param set the set to decorate, must not be null + * @param predicate the predicate to use for validation, must not be null + * @throws IllegalArgumentException if set or predicate is null + * @throws IllegalArgumentException if the set contains invalid elements + */ + public static SortedSet decorate(SortedSet set, Predicate predicate) { + return new PredicatedSortedSet(set, predicate); + } + + /** + * Constructor that wraps (not copies). + *
+ * If there are any elements already in the set being decorated, they
+ * are validated.
+ *
+ * @param set the set to decorate, must not be null
+ * @param predicate the predicate to use for validation, must not be null
+ * @throws IllegalArgumentException if set or predicate is null
+ * @throws IllegalArgumentException if the set contains invalid elements
+ */
+ protected PredicatedSortedSet(SortedSet set, Predicate predicate) {
+ super(set, predicate);
+ }
+
+ /**
+ * Gets the sorted set being decorated.
+ *
+ * @return the decorated sorted set
+ */
+ private SortedSet getSortedSet() {
+ return (SortedSet) getCollection();
+ }
+
+ //-----------------------------------------------------------------------
+ public SortedSet subSet(Object fromElement, Object toElement) {
+ SortedSet sub = getSortedSet().subSet(fromElement, toElement);
+ return new PredicatedSortedSet(sub, predicate);
+ }
+
+ public SortedSet headSet(Object toElement) {
+ SortedSet sub = getSortedSet().headSet(toElement);
+ return new PredicatedSortedSet(sub, predicate);
+ }
+
+ public SortedSet tailSet(Object fromElement) {
+ SortedSet sub = getSortedSet().tailSet(fromElement);
+ return new PredicatedSortedSet(sub, predicate);
+ }
+
+ public Object first() {
+ return getSortedSet().first();
+ }
+
+ public Object last() {
+ return getSortedSet().last();
+ }
+
+ public Comparator comparator() {
+ return getSortedSet().comparator();
+ }
+
+}
diff --git a/src/java/org/apache/commons/collections/decorators/SynchronizedSet.java b/src/java/org/apache/commons/collections/decorators/SynchronizedSet.java
new file mode 100644
index 000000000..1dc0579f9
--- /dev/null
+++ b/src/java/org/apache/commons/collections/decorators/SynchronizedSet.java
@@ -0,0 +1,114 @@
+/*
+ * $Header: /home/jerenkrantz/tmp/commons/commons-convert/cvs/home/cvs/jakarta-commons//collections/src/java/org/apache/commons/collections/decorators/Attic/SynchronizedSet.java,v 1.1 2003/05/07 11:19:46 scolebourne Exp $
+ * ====================================================================
+ *
+ * The Apache Software License, Version 1.1
+ *
+ * Copyright (c) 2003 The Apache Software Foundation. All rights
+ * reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the
+ * distribution.
+ *
+ * 3. The end-user documentation included with the redistribution, if
+ * any, must include the following acknowledgment:
+ * "This product includes software developed by the
+ * Apache Software Foundation (http://www.apache.org/)."
+ * Alternately, this acknowledgment may appear in the software itself,
+ * if and wherever such third-party acknowledgments normally appear.
+ *
+ * 4. The names "The Jakarta Project", "Commons", and "Apache Software
+ * Foundation" must not be used to endorse or promote products derived
+ * from this software without prior written permission. For written
+ * permission, please contact apache@apache.org.
+ *
+ * 5. Products derived from this software may not be called "Apache"
+ * nor may "Apache" appear in their names without prior written
+ * permission of the Apache Software Foundation.
+ *
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
+ * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ * ====================================================================
+ *
+ * This software consists of voluntary contributions made by many
+ * individuals on behalf of the Apache Software Foundation. For more
+ * information on the Apache Software Foundation, please see
+ * SynchronizedSet
decorates another Set
.
+ *
+ * Methods are synchronized, then forwarded to the decorated set.
+ *
+ * @since Commons Collections 3.0
+ * @version $Revision: 1.1 $ $Date: 2003/05/07 11:19:46 $
+ *
+ * @author Stephen Colebourne
+ */
+public class SynchronizedSet extends SynchronizedCollection implements Set {
+
+ /**
+ * Factory method to create a synchronized set.
+ *
+ * @param set the set to decorate, must not be null
+ * @throws IllegalArgumentException if set is null
+ */
+ public static Set decorate(Set set) {
+ return new SynchronizedSet(set);
+ }
+
+ /**
+ * Constructor that wraps (not copies).
+ *
+ * @param set the set to decorate, must not be null
+ * @throws IllegalArgumentException if set is null
+ */
+ protected SynchronizedSet(Set set) {
+ super(set);
+ }
+
+ /**
+ * Constructor that wraps (not copies).
+ *
+ * @param set the set to decorate, must not be null
+ * @param lock the lock object to use, must not be null
+ * @throws IllegalArgumentException if set is null
+ */
+ protected SynchronizedSet(Set set, Object lock) {
+ super(set, lock);
+ }
+
+ /**
+ * Gets the decorated set.
+ *
+ * @return the decorated set
+ */
+ protected Set getSet() {
+ return (Set) collection;
+ }
+
+}
diff --git a/src/java/org/apache/commons/collections/decorators/SynchronizedSortedSet.java b/src/java/org/apache/commons/collections/decorators/SynchronizedSortedSet.java
new file mode 100644
index 000000000..3c5f0a61c
--- /dev/null
+++ b/src/java/org/apache/commons/collections/decorators/SynchronizedSortedSet.java
@@ -0,0 +1,161 @@
+/*
+ * $Header: /home/jerenkrantz/tmp/commons/commons-convert/cvs/home/cvs/jakarta-commons//collections/src/java/org/apache/commons/collections/decorators/Attic/SynchronizedSortedSet.java,v 1.1 2003/05/07 11:19:46 scolebourne Exp $
+ * ====================================================================
+ *
+ * The Apache Software License, Version 1.1
+ *
+ * Copyright (c) 2003 The Apache Software Foundation. All rights
+ * reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the
+ * distribution.
+ *
+ * 3. The end-user documentation included with the redistribution, if
+ * any, must include the following acknowledgment:
+ * "This product includes software developed by the
+ * Apache Software Foundation (http://www.apache.org/)."
+ * Alternately, this acknowledgment may appear in the software itself,
+ * if and wherever such third-party acknowledgments normally appear.
+ *
+ * 4. The names "The Jakarta Project", "Commons", and "Apache Software
+ * Foundation" must not be used to endorse or promote products derived
+ * from this software without prior written permission. For written
+ * permission, please contact apache@apache.org.
+ *
+ * 5. Products derived from this software may not be called "Apache"
+ * nor may "Apache" appear in their names without prior written
+ * permission of the Apache Software Foundation.
+ *
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
+ * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ * ====================================================================
+ *
+ * This software consists of voluntary contributions made by many
+ * individuals on behalf of the Apache Software Foundation. For more
+ * information on the Apache Software Foundation, please see
+ * SynchronizedSortedSet
decorates another SortedSet
.
+ *
+ * Methods are synchronized, then forwarded to the decorated set.
+ *
+ * @since Commons Collections 3.0
+ * @version $Revision: 1.1 $ $Date: 2003/05/07 11:19:46 $
+ *
+ * @author Stephen Colebourne
+ */
+public class SynchronizedSortedSet extends SynchronizedCollection implements SortedSet {
+
+ /**
+ * Factory method to create a synchronized set.
+ *
+ * @param set the set to decorate, must not be null
+ * @throws IllegalArgumentException if set is null
+ */
+ public static SortedSet decorate(SortedSet set) {
+ return new SynchronizedSortedSet(set);
+ }
+
+ /**
+ * Constructor that wraps (not copies).
+ *
+ * @param set the set to decorate, must not be null
+ * @throws IllegalArgumentException if set is null
+ */
+ protected SynchronizedSortedSet(SortedSet set) {
+ super(set);
+ }
+
+ /**
+ * Constructor that wraps (not copies).
+ *
+ * @param set the set to decorate, must not be null
+ * @param lock the lock object to use, must not be null
+ * @throws IllegalArgumentException if set is null
+ */
+ protected SynchronizedSortedSet(SortedSet set, Object lock) {
+ super(set, lock);
+ }
+
+ /**
+ * Gets the decorated set.
+ *
+ * @return the decorated set
+ */
+ protected SortedSet getSortedSet() {
+ return (SortedSet) collection;
+ }
+
+ //-----------------------------------------------------------------------
+ public SortedSet subSet(Object fromElement, Object toElement) {
+ synchronized (lock) {
+ SortedSet set = getSortedSet().subSet(fromElement, toElement);
+ // the lock is passed into the constructor here to ensure that the
+ // subset is synchronized on the same lock as the parent
+ return new SynchronizedSortedSet(set, lock);
+ }
+ }
+
+ public SortedSet headSet(Object toElement) {
+ synchronized (lock) {
+ SortedSet set = getSortedSet().headSet(toElement);
+ // the lock is passed into the constructor here to ensure that the
+ // headset is synchronized on the same lock as the parent
+ return new SynchronizedSortedSet(set, lock);
+ }
+ }
+
+ public SortedSet tailSet(Object fromElement) {
+ synchronized (lock) {
+ SortedSet set = getSortedSet().tailSet(fromElement);
+ // the lock is passed into the constructor here to ensure that the
+ // tailset is synchronized on the same lock as the parent
+ return new SynchronizedSortedSet(set, lock);
+ }
+ }
+
+ public Object first() {
+ synchronized (lock) {
+ return getSortedSet().first();
+ }
+ }
+
+ public Object last() {
+ synchronized (lock) {
+ return getSortedSet().last();
+ }
+ }
+
+ public Comparator comparator() {
+ synchronized (lock) {
+ return getSortedSet().comparator();
+ }
+ }
+
+}
diff --git a/src/java/org/apache/commons/collections/decorators/TypedSet.java b/src/java/org/apache/commons/collections/decorators/TypedSet.java
new file mode 100644
index 000000000..a48840fd4
--- /dev/null
+++ b/src/java/org/apache/commons/collections/decorators/TypedSet.java
@@ -0,0 +1,108 @@
+/*
+ * $Header: /home/jerenkrantz/tmp/commons/commons-convert/cvs/home/cvs/jakarta-commons//collections/src/java/org/apache/commons/collections/decorators/Attic/TypedSet.java,v 1.1 2003/05/07 11:19:46 scolebourne Exp $
+ * ====================================================================
+ *
+ * The Apache Software License, Version 1.1
+ *
+ * Copyright (c) 2003 The Apache Software Foundation. All rights
+ * reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the
+ * distribution.
+ *
+ * 3. The end-user documentation included with the redistribution, if
+ * any, must include the following acknowledgment:
+ * "This product includes software developed by the
+ * Apache Software Foundation (http://www.apache.org/)."
+ * Alternately, this acknowledgment may appear in the software itself,
+ * if and wherever such third-party acknowledgments normally appear.
+ *
+ * 4. The names "The Jakarta Project", "Commons", and "Apache Software
+ * Foundation" must not be used to endorse or promote products derived
+ * from this software without prior written permission. For written
+ * permission, please contact apache@apache.org.
+ *
+ * 5. Products derived from this software may not be called "Apache"
+ * nor may "Apache" appear in their names without prior written
+ * permission of the Apache Software Foundation.
+ *
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
+ * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ * ====================================================================
+ *
+ * This software consists of voluntary contributions made by many
+ * individuals on behalf of the Apache Software Foundation. For more
+ * information on the Apache Software Foundation, please see
+ * TypedSet
decorates another Set
+ * to validate that elements added are of a specific type.
+ *
+ * The validation of additions is performed via an instanceof test against
+ * a specified Class
. If an object cannot be addded to the
+ * collection, an IllegalArgumentException is thrown.
+ *
+ * @since Commons Collections 3.0
+ * @version $Revision: 1.1 $ $Date: 2003/05/07 11:19:46 $
+ *
+ * @author Stephen Colebourne
+ * @author Matthew Hawthorne
+ */
+public class TypedSet extends PredicatedSet {
+
+ /**
+ * Factory method to create a typed set.
+ *
+ * If there are any elements already in the set being decorated, they + * are validated. + * + * @param set the set to decorate, must not be null + * @param type the type to allow into the collection, must not be null + * @throws IllegalArgumentException if set or type is null + * @throws IllegalArgumentException if the set contains invalid elements + */ + public static Set decorate(Set set, Class type) { + return new TypedSet(set, type); + } + + /** + * Constructor that wraps (not copies). + *
+ * If there are any elements already in the collection being decorated, they
+ * are validated.
+ *
+ * @param set the set to decorate, must not be null
+ * @param type the type to allow into the collection, must not be null
+ * @throws IllegalArgumentException if set or type is null
+ * @throws IllegalArgumentException if the set contains invalid elements
+ */
+ protected TypedSet(Set set, Class type) {
+ super(set, TypedCollection.getPredicate(type));
+ }
+
+}
diff --git a/src/java/org/apache/commons/collections/decorators/TypedSortedSet.java b/src/java/org/apache/commons/collections/decorators/TypedSortedSet.java
new file mode 100644
index 000000000..050f5baf0
--- /dev/null
+++ b/src/java/org/apache/commons/collections/decorators/TypedSortedSet.java
@@ -0,0 +1,108 @@
+/*
+ * $Header: /home/jerenkrantz/tmp/commons/commons-convert/cvs/home/cvs/jakarta-commons//collections/src/java/org/apache/commons/collections/decorators/Attic/TypedSortedSet.java,v 1.1 2003/05/07 11:19:46 scolebourne Exp $
+ * ====================================================================
+ *
+ * The Apache Software License, Version 1.1
+ *
+ * Copyright (c) 2003 The Apache Software Foundation. All rights
+ * reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the
+ * distribution.
+ *
+ * 3. The end-user documentation included with the redistribution, if
+ * any, must include the following acknowledgment:
+ * "This product includes software developed by the
+ * Apache Software Foundation (http://www.apache.org/)."
+ * Alternately, this acknowledgment may appear in the software itself,
+ * if and wherever such third-party acknowledgments normally appear.
+ *
+ * 4. The names "The Jakarta Project", "Commons", and "Apache Software
+ * Foundation" must not be used to endorse or promote products derived
+ * from this software without prior written permission. For written
+ * permission, please contact apache@apache.org.
+ *
+ * 5. Products derived from this software may not be called "Apache"
+ * nor may "Apache" appear in their names without prior written
+ * permission of the Apache Software Foundation.
+ *
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
+ * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ * ====================================================================
+ *
+ * This software consists of voluntary contributions made by many
+ * individuals on behalf of the Apache Software Foundation. For more
+ * information on the Apache Software Foundation, please see
+ * TypedSortedSet
decorates another Set
+ * to validate that elements added are of a specific type.
+ *
+ * The validation of additions is performed via an instanceof test against
+ * a specified Class
. If an object cannot be addded to the
+ * collection, an IllegalArgumentException is thrown.
+ *
+ * @since Commons Collections 3.0
+ * @version $Revision: 1.1 $ $Date: 2003/05/07 11:19:46 $
+ *
+ * @author Stephen Colebourne
+ * @author Matthew Hawthorne
+ */
+public class TypedSortedSet extends PredicatedSortedSet {
+
+ /**
+ * Factory method to create a typed sorted set.
+ *
+ * If there are any elements already in the set being decorated, they + * are validated. + * + * @param set the set to decorate, must not be null + * @param type the type to allow into the collection, must not be null + * @throws IllegalArgumentException if set or type is null + * @throws IllegalArgumentException if the set contains invalid elements + */ + public static SortedSet decorate(SortedSet set, Class type) { + return new TypedSortedSet(set, type); + } + + /** + * Constructor that wraps (not copies). + *
+ * If there are any elements already in the collection being decorated, they
+ * are validated.
+ *
+ * @param set the set to decorate, must not be null
+ * @param type the type to allow into the collection, must not be null
+ * @throws IllegalArgumentException if set or type is null
+ * @throws IllegalArgumentException if the set contains invalid elements
+ */
+ protected TypedSortedSet(SortedSet set, Class type) {
+ super(set, TypedCollection.getPredicate(type));
+ }
+
+}
diff --git a/src/java/org/apache/commons/collections/decorators/UnmodifiableSet.java b/src/java/org/apache/commons/collections/decorators/UnmodifiableSet.java
new file mode 100644
index 000000000..cd45a4081
--- /dev/null
+++ b/src/java/org/apache/commons/collections/decorators/UnmodifiableSet.java
@@ -0,0 +1,102 @@
+/*
+ * $Header: /home/jerenkrantz/tmp/commons/commons-convert/cvs/home/cvs/jakarta-commons//collections/src/java/org/apache/commons/collections/decorators/Attic/UnmodifiableSet.java,v 1.1 2003/05/07 11:19:46 scolebourne Exp $
+ * ====================================================================
+ *
+ * The Apache Software License, Version 1.1
+ *
+ * Copyright (c) 2003 The Apache Software Foundation. All rights
+ * reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the
+ * distribution.
+ *
+ * 3. The end-user documentation included with the redistribution, if
+ * any, must include the following acknowledgment:
+ * "This product includes software developed by the
+ * Apache Software Foundation (http://www.apache.org/)."
+ * Alternately, this acknowledgment may appear in the software itself,
+ * if and wherever such third-party acknowledgments normally appear.
+ *
+ * 4. The names "The Jakarta Project", "Commons", and "Apache Software
+ * Foundation" must not be used to endorse or promote products derived
+ * from this software without prior written permission. For written
+ * permission, please contact apache@apache.org.
+ *
+ * 5. Products derived from this software may not be called "Apache"
+ * nor may "Apache" appear in their names without prior written
+ * permission of the Apache Software Foundation.
+ *
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
+ * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ * ====================================================================
+ *
+ * This software consists of voluntary contributions made by many
+ * individuals on behalf of the Apache Software Foundation. For more
+ * information on the Apache Software Foundation, please see
+ * UnmodifiableSet
decorates another Set
to
+ * ensure it can't be altered.
+ *
+ * @since Commons Collections 3.0
+ * @version $Revision: 1.1 $ $Date: 2003/05/07 11:19:46 $
+ *
+ * @author Stephen Colebourne
+ */
+public class UnmodifiableSet extends UnmodifiableCollection implements Set {
+
+ /**
+ * Factory method to create an unmodifiable set.
+ *
+ * @param set the set to decorate, must not be null
+ * @throws IllegalArgumentException if set is null
+ */
+ public static Set decorate(Set set) {
+ return new UnmodifiableSet(set);
+ }
+
+ /**
+ * Constructor that wraps (not copies).
+ *
+ * @param set the set to decorate, must not be null
+ * @throws IllegalArgumentException if set is null
+ */
+ protected UnmodifiableSet(Set set) {
+ super(set);
+ }
+
+ /**
+ * Gets the set being decorated.
+ *
+ * @return the decorated set
+ */
+ protected Set getSet() {
+ return (Set) getCollection();
+ }
+
+}
diff --git a/src/java/org/apache/commons/collections/decorators/UnmodifiableSortedSet.java b/src/java/org/apache/commons/collections/decorators/UnmodifiableSortedSet.java
new file mode 100644
index 000000000..0b3e6f0d4
--- /dev/null
+++ b/src/java/org/apache/commons/collections/decorators/UnmodifiableSortedSet.java
@@ -0,0 +1,131 @@
+/*
+ * $Header: /home/jerenkrantz/tmp/commons/commons-convert/cvs/home/cvs/jakarta-commons//collections/src/java/org/apache/commons/collections/decorators/Attic/UnmodifiableSortedSet.java,v 1.1 2003/05/07 11:19:46 scolebourne Exp $
+ * ====================================================================
+ *
+ * The Apache Software License, Version 1.1
+ *
+ * Copyright (c) 2003 The Apache Software Foundation. All rights
+ * reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the
+ * distribution.
+ *
+ * 3. The end-user documentation included with the redistribution, if
+ * any, must include the following acknowledgment:
+ * "This product includes software developed by the
+ * Apache Software Foundation (http://www.apache.org/)."
+ * Alternately, this acknowledgment may appear in the software itself,
+ * if and wherever such third-party acknowledgments normally appear.
+ *
+ * 4. The names "The Jakarta Project", "Commons", and "Apache Software
+ * Foundation" must not be used to endorse or promote products derived
+ * from this software without prior written permission. For written
+ * permission, please contact apache@apache.org.
+ *
+ * 5. Products derived from this software may not be called "Apache"
+ * nor may "Apache" appear in their names without prior written
+ * permission of the Apache Software Foundation.
+ *
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
+ * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ * ====================================================================
+ *
+ * This software consists of voluntary contributions made by many
+ * individuals on behalf of the Apache Software Foundation. For more
+ * information on the Apache Software Foundation, please see
+ * UnmodifiableSortedSet
decorates another SortedSet
+ * to ensure it can't be altered.
+ *
+ * @since Commons Collections 3.0
+ * @version $Revision: 1.1 $ $Date: 2003/05/07 11:19:46 $
+ *
+ * @author Stephen Colebourne
+ */
+public class UnmodifiableSortedSet extends UnmodifiableSet implements SortedSet {
+
+ /**
+ * Factory method to create an unmodifiable set.
+ *
+ * @param set the set to decorate, must not be null
+ * @throws IllegalArgumentException if set is null
+ */
+ public static SortedSet decorate(SortedSet set) {
+ return new UnmodifiableSortedSet(set);
+ }
+
+ /**
+ * Constructor that wraps (not copies).
+ *
+ * @param set the set to decorate, must not be null
+ * @throws IllegalArgumentException if set is null
+ */
+ protected UnmodifiableSortedSet(SortedSet set) {
+ super(set);
+ }
+
+ /**
+ * Gets the set being decorated.
+ *
+ * @return the decorated set
+ */
+ protected SortedSet getSortedSet() {
+ return (SortedSet) getCollection();
+ }
+
+ //-----------------------------------------------------------------------
+ public SortedSet subSet(Object fromElement, Object toElement) {
+ SortedSet sub = getSortedSet().subSet(fromElement, toElement);
+ return new UnmodifiableSortedSet(sub);
+ }
+
+ public SortedSet headSet(Object toElement) {
+ SortedSet sub = getSortedSet().headSet(toElement);
+ return new UnmodifiableSortedSet(sub);
+ }
+
+ public SortedSet tailSet(Object fromElement) {
+ SortedSet sub = getSortedSet().tailSet(fromElement);
+ return new UnmodifiableSortedSet(sub);
+ }
+
+ public Object first() {
+ return getSortedSet().first();
+ }
+
+ public Object last() {
+ return getSortedSet().last();
+ }
+
+ public Comparator comparator() {
+ return getSortedSet().comparator();
+ }
+
+}