[jboss-cvs] JBossAS SVN: r98501 - projects/javaee/tags/jboss-javaee-parent-6.0.0-alpha-1/jboss-el-api/src/main/javax/el.
jboss-cvs-commits at lists.jboss.org
jboss-cvs-commits at lists.jboss.org
Tue Dec 22 12:23:31 EST 2009
Author: jaikiran
Date: 2009-12-22 12:23:31 -0500 (Tue, 22 Dec 2009)
New Revision: 98501
Removed:
projects/javaee/tags/jboss-javaee-parent-6.0.0-alpha-1/jboss-el-api/src/main/javax/el/ListELResolver.java
Log:
Autoversioning commit: a non-deltaV client made a change to
/projects/javaee/tags/jboss-javaee-parent-6.0.0-alpha-1/jboss-el-api/src/main/javax/el/ListELResolver.java
Deleted: projects/javaee/tags/jboss-javaee-parent-6.0.0-alpha-1/jboss-el-api/src/main/javax/el/ListELResolver.java
===================================================================
--- projects/javaee/tags/jboss-javaee-parent-6.0.0-alpha-1/jboss-el-api/src/main/javax/el/ListELResolver.java 2009-12-22 17:23:24 UTC (rev 98500)
+++ projects/javaee/tags/jboss-javaee-parent-6.0.0-alpha-1/jboss-el-api/src/main/javax/el/ListELResolver.java 2009-12-22 17:23:31 UTC (rev 98501)
@@ -1,414 +0,0 @@
-/*
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
- *
- * Copyright 1997-2008 Sun Microsystems, Inc. All rights reserved.
- *
- * The contents of this file are subject to the terms of either the GNU
- * General Public License Version 2 only ("GPL") or the Common Development
- * and Distribution License("CDDL") (collectively, the "License"). You
- * may not use this file except in compliance with the License. You can obtain
- * a copy of the License at https://glassfish.dev.java.net/public/CDDL+GPL.html
- * or glassfish/bootstrap/legal/LICENSE.txt. See the License for the specific
- * language governing permissions and limitations under the License.
- *
- * When distributing the software, include this License Header Notice in each
- * file and include the License file at glassfish/bootstrap/legal/LICENSE.txt.
- * Sun designates this particular file as subject to the "Classpath" exception
- * as provided by Sun in the GPL Version 2 section of the License file that
- * accompanied this code. If applicable, add the following below the License
- * Header, with the fields enclosed by brackets [] replaced by your own
- * identifying information: "Portions Copyrighted [year]
- * [name of copyright owner]"
- *
- * Contributor(s):
- *
- * If you wish your version of this file to be governed by only the CDDL or
- * only the GPL Version 2, indicate your decision by adding "[Contributor]
- * elects to include this software in this distribution under the [CDDL or GPL
- * Version 2] license." If you don't indicate a single choice of license, a
- * recipient has the option to distribute your version of this file under
- * either the CDDL, the GPL Version 2 or to extend the choice of license to
- * its licensees as provided above. However, if you add GPL Version 2 code
- * and therefore, elected the GPL Version 2 license, then the option applies
- * only if the new code is made subject to such option by the copyright
- * holder.
- *
- *
- * This file incorporates work covered by the following copyright and
- * permission notice:
- *
- * Copyright 2004 The Apache Software Foundation
- *
- * 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 javax.el;
-
-import java.util.List;
-import java.util.Iterator;
-import java.util.Collections;
-import java.util.ArrayList;
-import java.beans.FeatureDescriptor;
-
-
-/**
- * Defines property resolution behavior on instances of {@link java.util.List}.
- *
- * <p>This resolver handles base objects of type <code>java.util.List</code>.
- * It accepts any object as a property and coerces that object into an
- * integer index into the list. The resulting value is the value in the list
- * at that index.</p>
- *
- * <p>This resolver can be constructed in read-only mode, which means that
- * {@link #isReadOnly} will always return <code>true</code> and
- * {@link #setValue} will always throw
- * <code>PropertyNotWritableException</code>.</p>
- *
- * <p><code>ELResolver</code>s are combined together using
- * {@link CompositeELResolver}s, to define rich semantics for evaluating
- * an expression. See the javadocs for {@link ELResolver} for details.</p>
- *
- * @see CompositeELResolver
- * @see ELResolver
- * @see java.util.List
- * @since JSP 2.1
- */
-public class ListELResolver extends ELResolver {
-
- /**
- * Creates a new read/write <code>ListELResolver</code>.
- */
- public ListELResolver() {
- this.isReadOnly = false;
- }
-
- /**
- * Creates a new <code>ListELResolver</code> whose read-only status is
- * determined by the given parameter.
- *
- * @param isReadOnly <code>true</code> if this resolver cannot modify
- * lists; <code>false</code> otherwise.
- */
- public ListELResolver(boolean isReadOnly) {
- this.isReadOnly = isReadOnly;
- }
-
- /**
- * If the base object is a list, returns the most general acceptable type
- * for a value in this list.
- *
- * <p>If the base is a <code>List</code>, the <code>propertyResolved</code>
- * property of the <code>ELContext</code> object must be set to
- * <code>true</code> by this resolver, before returning. If this property
- * is not <code>true</code> after this method is called, the caller
- * should ignore the return value.</p>
- *
- * <p>Assuming the base is a <code>List</code>, this method will always
- * return <code>Object.class</code>. This is because <code>List</code>s
- * accept any object as an element.</p>
- *
- * @param context The context of this evaluation.
- * @param base The list to analyze. Only bases of type <code>List</code>
- * are handled by this resolver.
- * @param property The index of the element in the list to return the
- * acceptable type for. Will be coerced into an integer, but
- * otherwise ignored by this resolver.
- * @return If the <code>propertyResolved</code> property of
- * <code>ELContext</code> was set to <code>true</code>, then
- * the most general acceptable type; otherwise undefined.
- * @throws PropertyNotFoundException if the given index is out of
- * bounds for this list.
- * @throws NullPointerException if context is <code>null</code>
- * @throws ELException if an exception was thrown while performing
- * the property or variable resolution. The thrown exception
- * must be included as the cause property of this exception, if
- * available.
- */
- public Class<?> getType(ELContext context,
- Object base,
- Object property) {
-
- if (context == null) {
- throw new NullPointerException();
- }
-
- if (base != null && base instanceof List) {
- context.setPropertyResolved(true);
- List list = (List) base;
- int index = toInteger(property);
- if (index < 0 || index >= list.size()) {
- throw new PropertyNotFoundException();
- }
- return Object.class;
- }
- return null;
- }
-
- /**
- * If the base object is a list, returns the value at the given index.
- * The index is specified by the <code>property</code> argument, and
- * coerced into an integer. If the coercion could not be performed,
- * an <code>IllegalArgumentException</code> is thrown. If the index is
- * out of bounds, <code>null</code> is returned.
- *
- * <p>If the base is a <code>List</code>, the <code>propertyResolved</code>
- * property of the <code>ELContext</code> object must be set to
- * <code>true</code> by this resolver, before returning. If this property
- * is not <code>true</code> after this method is called, the caller
- * should ignore the return value.</p>
- *
- * @param context The context of this evaluation.
- * @param base The list to be analyzed. Only bases of type
- * <code>List</code> are handled by this resolver.
- * @param property The index of the value to be returned. Will be coerced
- * into an integer.
- * @return If the <code>propertyResolved</code> property of
- * <code>ELContext</code> was set to <code>true</code>, then
- * the value at the given index or <code>null</code>
- * if the index was out of bounds. Otherwise, undefined.
- * @throws IllegalArgumentException if the property could not be coerced
- * into an integer.
- * @throws NullPointerException if context is <code>null</code>.
- * @throws ELException if an exception was thrown while performing
- * the property or variable resolution. The thrown exception
- * must be included as the cause property of this exception, if
- * available.
- */
- public Object getValue(ELContext context,
- Object base,
- Object property) {
-
- if (context == null) {
- throw new NullPointerException();
- }
-
- if (base != null && base instanceof List) {
- context.setPropertyResolved(true);
- List list = (List) base;
- int index = toInteger(property);
- if (index < 0 || index >= list.size()) {
- return null;
- }
- return list.get(index);
- }
- return null;
- }
-
- /**
- * If the base object is a list, attempts to set the value at the
- * given index with the given value. The index is specified by the
- * <code>property</code> argument, and coerced into an integer. If the
- * coercion could not be performed, an
- * <code>IllegalArgumentException</code> is thrown. If the index is
- * out of bounds, a <code>PropertyNotFoundException</code> is thrown.
- *
- * <p>If the base is a <code>List</code>, the <code>propertyResolved</code>
- * property of the <code>ELContext</code> object must be set to
- * <code>true</code> by this resolver, before returning. If this property
- * is not <code>true</code> after this method is called, the caller
- * can safely assume no value was set.</p>
- *
- * <p>If this resolver was constructed in read-only mode, this method will
- * always throw <code>PropertyNotWritableException</code>.</p>
- *
- * <p>If a <code>List</code> was created using
- * {@link java.util.Collections#unmodifiableList}, this method must
- * throw <code>PropertyNotWritableException</code>. Unfortunately,
- * there is no Collections API method to detect this. However, an
- * implementation can create a prototype unmodifiable <code>List</code>
- * and query its runtime type to see if it matches the runtime type of
- * the base object as a workaround.</p>
- *
- * @param context The context of this evaluation.
- * @param base The list to be modified. Only bases of type
- * <code>List</code> are handled by this resolver.
- * @param property The index of the value to be set. Will be coerced
- * into an integer.
- * @param val The value to be set at the given index.
- * @throws ClassCastException if the class of the specified element
- * prevents it from being added to this list.
- * @throws NullPointerException if context is <code>null</code>, or
- * if the value is <code>null</code> and this <code>List</code>
- * does not support <code>null</code> elements.
- * @throws IllegalArgumentException if the property could not be coerced
- * into an integer, or if some aspect of the specified element
- * prevents it from being added to this list.
- * @throws PropertyNotWritableException if this resolver was constructed
- * in read-only mode, or if the set operation is not supported by
- * the underlying list.
- * @throws PropertyNotFoundException if the given index is out of
- * bounds for this list.
- * @throws ELException if an exception was thrown while performing
- * the property or variable resolution. The thrown exception
- * must be included as the cause property of this exception, if
- * available.
- */
- public void setValue(ELContext context,
- Object base,
- Object property,
- Object val) {
-
- if (context == null) {
- throw new NullPointerException();
- }
-
- if (base != null && base instanceof List) {
- context.setPropertyResolved(true);
- List list = (List) base;
- int index = toInteger(property);
- if (isReadOnly) {
- throw new PropertyNotWritableException();
- }
- try {
- list.set(index, val);
- } catch (UnsupportedOperationException ex) {
- throw new PropertyNotWritableException();
- } catch (IndexOutOfBoundsException ex) {
- throw new PropertyNotFoundException();
- } catch (ClassCastException ex) {
- throw ex;
- } catch (NullPointerException ex) {
- throw ex;
- } catch (IllegalArgumentException ex) {
- throw ex;
- }
- }
- }
-
- static private Class<?> theUnmodifiableListClass =
- Collections.unmodifiableList(new ArrayList()).getClass();
-
- /**
- * If the base object is a list, returns whether a call to
- * {@link #setValue} will always fail.
- *
- * <p>If the base is a <code>List</code>, the <code>propertyResolved</code>
- * property of the <code>ELContext</code> object must be set to
- * <code>true</code> by this resolver, before returning. If this property
- * is not <code>true</code> after this method is called, the caller
- * should ignore the return value.</p>
- *
- * <p>If this resolver was constructed in read-only mode, this method will
- * always return <code>true</code>.</p>
- *
- * <p>If a <code>List</code> was created using
- * {@link java.util.Collections#unmodifiableList}, this method must
- * return <code>true</code>. Unfortunately, there is no Collections API
- * method to detect this. However, an implementation can create a
- * prototype unmodifiable <code>List</code> and query its runtime type
- * to see if it matches the runtime type of the base object as a
- * workaround.</p>
- *
- * @param context The context of this evaluation.
- * @param base The list to analyze. Only bases of type <code>List</code>
- * are handled by this resolver.
- * @param property The index of the element in the list to return the
- * acceptable type for. Will be coerced into an integer, but
- * otherwise ignored by this resolver.
- * @return If the <code>propertyResolved</code> property of
- * <code>ELContext</code> was set to <code>true</code>, then
- * <code>true</code> if calling the <code>setValue</code> method
- * will always fail or <code>false</code> if it is possible that
- * such a call may succeed; otherwise undefined.
- * @throws PropertyNotFoundException if the given index is out of
- * bounds for this list.
- * @throws NullPointerException if context is <code>null</code>
- * @throws ELException if an exception was thrown while performing
- * the property or variable resolution. The thrown exception
- * must be included as the cause property of this exception, if
- * available.
- */
- public boolean isReadOnly(ELContext context,
- Object base,
- Object property) {
-
- if (context == null) {
- throw new NullPointerException();
- }
-
- if (base != null && base instanceof List) {
- context.setPropertyResolved(true);
- List list = (List) base;
- int index = toInteger(property);
- if (index < 0 || index >= list.size()) {
- throw new PropertyNotFoundException();
- }
- return list.getClass() == theUnmodifiableListClass || isReadOnly;
- }
- return false;
- }
-
- /**
- * Always returns <code>null</code>, since there is no reason to
- * iterate through set set of all integers.
- *
- * <p>The {@link #getCommonPropertyType} method returns sufficient
- * information about what properties this resolver accepts.</p>
- *
- * @param context The context of this evaluation.
- * @param base The list. Only bases of type <code>List</code> are
- * handled by this resolver.
- * @return <code>null</code>.
- */
- public Iterator<FeatureDescriptor> getFeatureDescriptors(
- ELContext context,
- Object base) {
- return null;
- }
-
- /**
- * If the base object is a list, returns the most general type that
- * this resolver accepts for the <code>property</code> argument.
- * Otherwise, returns <code>null</code>.
- *
- * <p>Assuming the base is a <code>List</code>, this method will always
- * return <code>Integer.class</code>. This is because <code>List</code>s
- * accept integers as their index.</p>
- *
- * @param context The context of this evaluation.
- * @param base The list to analyze. Only bases of type <code>List</code>
- * are handled by this resolver.
- * @return <code>null</code> if base is not a <code>List</code>; otherwise
- * <code>Integer.class</code>.
- */
- public Class<?> getCommonPropertyType(ELContext context,
- Object base) {
- if (base != null && base instanceof List) {
- return Integer.class;
- }
- return null;
- }
-
- private int toInteger(Object p) {
- if (p instanceof Integer) {
- return ((Integer) p).intValue();
- }
- if (p instanceof Character) {
- return ((Character) p).charValue();
- }
- if (p instanceof Boolean) {
- return ((Boolean) p).booleanValue()? 1: 0;
- }
- if (p instanceof Number) {
- return ((Number) p).intValue();
- }
- if (p instanceof String) {
- return Integer.parseInt((String) p);
- }
- throw new IllegalArgumentException();
- }
-
- private boolean isReadOnly;
-}
-
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