[jboss-cvs] JBossAS SVN: r98510 - 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 12:24:35 EST 2009
Author: jaikiran
Date: 2009-12-22 12:24:34 -0500 (Tue, 22 Dec 2009)
New Revision: 98510
Removed:
projects/javaee/tags/jboss-javaee-parent-6.0.0-alpha-1/jboss-el-api/src/main/javax/el/ExpressionFactory.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/ExpressionFactory.java
Deleted: projects/javaee/tags/jboss-javaee-parent-6.0.0-alpha-1/jboss-el-api/src/main/javax/el/ExpressionFactory.java
===================================================================
--- projects/javaee/tags/jboss-javaee-parent-6.0.0-alpha-1/jboss-el-api/src/main/javax/el/ExpressionFactory.java 2009-12-22 17:24:27 UTC (rev 98509)
+++ projects/javaee/tags/jboss-javaee-parent-6.0.0-alpha-1/jboss-el-api/src/main/javax/el/ExpressionFactory.java 2009-12-22 17:24:34 UTC (rev 98510)
@@ -1,325 +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;
-
-/**
- * Parses a <code>String</code> into a {@link ValueExpression} or
- * {@link MethodExpression} instance for later evaluation.
- *
- * <p>Classes that implement the EL expression language expose their
- * functionality via this abstract class.
- * The {@link #newInstance} method can be used to obtain an
- * instance of the implementation.
- * Technologies such as
- * JavaServer Pages and JavaServer Faces provide access to an
- * implementation via factory methods.</p>
- *
- * <p>The {@link #createValueExpression} method is used to parse expressions
- * that evaluate to values (both l-values and r-values are supported).
- * The {@link #createMethodExpression} method is used to parse expressions
- * that evaluate to a reference to a method on an object.</p>
- *
- * <p>Unlike previous incarnations of this API, there is no way to parse
- * and evaluate an expression in one single step. The expression needs to first
- * be parsed, and then evaluated.</p>
- *
- * <p>Resolution of model objects is performed at evaluation time, via the
- * {@link ELResolver} associated with the {@link ELContext} passed to
- * the <code>ValueExpression</code> or <code>MethodExpression</code>.</p>
- *
- * <p>The ELContext object also provides access to the {@link FunctionMapper}
- * and {@link VariableMapper} to be used when parsing the expression.
- * EL function and variable mapping is performed at parse-time, and
- * the results are
- * bound to the expression. Therefore, the {@link ELContext},
- * {@link FunctionMapper},
- * and {@link VariableMapper}
- * are not stored for future use and do not have to be
- * <code>Serializable</code>.</p>
- *
- * <p>The <code>createValueExpression</code> and
- * <code>createMethodExpression</code> methods must be thread-safe. That is,
- * multiple threads may call these methods on the same
- * <code>ExpressionFactory</code> object simultaneously. Implementations
- * should synchronize access if they depend on transient state.
- * Implementations should not, however, assume that only one object of
- * each <code>ExpressionFactory</code> type will be instantiated; global
- * caching should therefore be static.</p>
- *
- * <p>The <code>ExpressionFactory</code> must be able to handle the following
- * types of input for the <code>expression</code> parameter:
- * <ul>
- * <li>Single expressions using the <code>${}</code> delimiter
- * (e.g. <code>"${employee.lastName}"</code>).</li>
- * <li>Single expressions using the <code>#{}</code> delimiter
- * (e.g. <code>"#{employee.lastName}"</code>).</li>
- * <li>Literal text containing no <code>${}</code> or <code>#{}</code>
- * delimiters (e.g. <code>"John Doe"</code>).</li>
- * <li>Multiple expressions using the same delimiter (e.g.
- * <code>"${employee.firstName}${employee.lastName}"</code> or
- * <code>"#{employee.firstName}#{employee.lastName}"</code>).</li>
- * <li>Mixed literal text and expressions using the same delimiter (e.g.
- * <code>"Name: ${employee.firstName} ${employee.lastName}"</code>).</li>
- * </ul></p>
- *
- * <p>The following types of input are illegal and must cause an
- * {@link ELException} to be thrown:
- * <ul>
- * <li>Multiple expressions using different delimiters (e.g.
- * <code>"${employee.firstName}#{employee.lastName}"</code>).</li>
- * <li>Mixed literal text and expressions using different delimiters(e.g.
- * <code>"Name: ${employee.firstName} #{employee.lastName}"</code>).</li>
- * </ul></p>
- *
- * @since JSP 2.1
- */
-
-import java.util.Properties;
-
-public abstract class ExpressionFactory {
-
- /**
- * Creates a new instance of a <code>ExpressionFactory</code>.
- * This method uses the following ordered lookup procedure to determine
- * the <code>ExpressionFactory</code> implementation class to load:
- * <ul>
- * <li>Use the Services API (as detailed in the JAR specification).
- * If a resource with the name of
- * <code>META-INF/services/javax.el.ExpressionFactory</code> exists,
- * then its first line, if present, is used as the UTF-8 encoded name of
- * the implementation class. </li>
- * <li>Use the properties file "lib/el.properties" in the JRE directory.
- * If this file exists and it is readable by the
- * <code> java.util.Properties.load(InputStream)</code> method,
- * and it contains an entry whose key is "javax.el.ExpressionFactory",
- * then the value of that entry is used as the name of the
- * implementation class.</li>
- * <li>Use the <code>javax.el.ExpressionFactory</code> system property.
- * If a system property with this name is defined, then its value is
- * used as the name of the implementation class.</li>
- * <li>Use a platform default implementation.</li>
- * </ul>
- */
- public static ExpressionFactory newInstance() {
- return ExpressionFactory.newInstance(null);
- }
-
- /**
- * <p>Create a new instance of a <code>ExpressionFactory</code>, with
- * optional properties.
- * This method uses the same lookup procedure as the one used in
- * <code>newInstance()</code>.
- * </p>
- * <p>
- * If the argument <code>properties</code> is not null, and if the
- * implementation contains a constructor with a single parameter of
- * type <code>java.util.Properties</code>, then the constructor is used
- * to create the instance.
- * </p>
- * <p>
- * Properties are optional and can be ignored by an implementation.
- * </p>
- * <p>The name of a property should start with "javax.el."</p>
- * <p>
- * The following are some suggested names for properties.
- * <ul>
- * <li>javax.el.cacheSize</li>
- * </ul></p>
- *
- * @param properties Properties passed to the implementation.
- * If null, then no properties.
- */
- public static ExpressionFactory newInstance(Properties properties) {
- return (ExpressionFactory) FactoryFinder.find(
- "javax.el.ExpressionFactory",
- "org.apache.el.ExpressionFactoryImpl",
- properties);
- }
-
- /**
- * Parses an expression into a {@link ValueExpression} for later
- * evaluation. Use this method for expressions that refer to values.
- *
- * <p>This method should perform syntactic validation of the expression.
- * If in doing so it detects errors, it should raise an
- * <code>ELException</code>.</p>
- *
- * @param context The EL context used to parse the expression.
- * The <code>FunctionMapper</code> and <code>VariableMapper</code>
- * stored in the ELContext
- * are used to resolve functions and variables found in
- * the expression. They can be <code>null</code>, in which case
- * functions or variables are not supported for this expression.
- * The object
- * returned must invoke the same functions and access the same
- * variable mappings
- * regardless of whether
- * the mappings in the provided <code>FunctionMapper</code>
- * and <code>VariableMapper</code> instances
- * change between calling
- * <code>ExpressionFactory.createValueExpression()</code> and any
- * method on <code>ValueExpression</code>.
- * <p>
- * Note that within the EL, the ${} and #{} syntaxes are treated identically.
- * This includes the use of VariableMapper and FunctionMapper at expression creation
- * time. Each is invoked if not null, independent
- * of whether the #{} or ${} syntax is used for the expression.</p>
- * @param expression The expression to parse
- * @param expectedType The type the result of the expression
- * will be coerced to after evaluation.
- * @return The parsed expression
- * @throws NullPointerException Thrown if expectedType is null.
- * @throws ELException Thrown if there are syntactical errors in the
- * provided expression.
- */
- public abstract ValueExpression createValueExpression(
- ELContext context,
- String expression,
- Class<?> expectedType);
-
- /**
- * Creates a ValueExpression that wraps an object instance. This
- * method can be used to pass any object as a ValueExpression. The
- * wrapper ValueExpression is read only, and returns the wrapped
- * object via its <code>getValue()</code> method, optionally coerced.
- *
- * @param instance The object instance to be wrapped.
- * @param expectedType The type the result of the expression
- * will be coerced to after evaluation. There will be no
- * coercion if it is Object.class,
- * @throws NullPointerException Thrown if expectedType is null.
- */
- public abstract ValueExpression createValueExpression(
- Object instance,
- Class<?> expectedType);
-
- /**
- * Parses an expression into a {@link MethodExpression} for later
- * evaluation. Use this method for expressions that refer to methods.
- *
- * <p>
- * If the expression is a String literal, a <code>MethodExpression
- * </code> is created, which when invoked, returns the String literal,
- * coerced to expectedReturnType. An ELException is thrown if
- * expectedReturnType is void or if the coercion of the String literal
- * to the expectedReturnType yields an error (see Section "1.16 Type
- * Conversion").
- * </p>
- * <p>This method should perform syntactic validation of the expression.
- * If in doing so it detects errors, it should raise an
- * <code>ELException</code>.</p>
- *
- * @param context The EL context used to parse the expression.
- * The <code>FunctionMapper</code> and <code>VariableMapper</code>
- * stored in the ELContext
- * are used to resolve functions and variables found in
- * the expression. They can be <code>null</code>, in which
- * case functions or variables are not supported for this expression.
- * The object
- * returned must invoke the same functions and access the same variable
- * mappings
- * regardless of whether
- * the mappings in the provided <code>FunctionMapper</code>
- * and <code>VariableMapper</code> instances
- * change between calling
- * <code>ExpressionFactory.createMethodExpression()</code> and any
- * method on <code>MethodExpression</code>.
- * <p>
- * Note that within the EL, the ${} and #{} syntaxes are treated identically.
- * This includes the use of VariableMapper and FunctionMapper at expression creation
- * time. Each is invoked if not null, independent
- * of whether the #{} or ${} syntax is used for the expression.</p>
- *
- * @param expression The expression to parse
- * @param expectedReturnType The expected return type for the method
- * to be found. After evaluating the expression, the
- * <code>MethodExpression</code> must check that the return type of
- * the actual method matches this type. Passing in a value of
- * <code>null</code> indicates the caller does not care what the
- * return type is, and the check is disabled.
- * @param expectedParamTypes The expected parameter types for the method to
- * be found. Must be an array with no elements if there are
- * no parameters expected. It is illegal to pass <code>null</code>.
- * @return The parsed expression
- * @throws ELException Thrown if there are syntactical errors in the
- * provided expression.
- * @throws NullPointerException if paramTypes is <code>null</code>.
- */
- public abstract MethodExpression createMethodExpression(
- ELContext context,
- String expression,
- Class<?> expectedReturnType,
- Class<?>[] expectedParamTypes);
-
- /**
- * Coerces an object to a specific type according to the
- * EL type conversion rules.
- *
- * <p>An <code>ELException</code> is thrown if an error results from
- * applying the conversion rules.
- * </p>
- *
- * @param obj The object to coerce.
- * @param targetType The target type for the coercion.
- * @throws ELException thrown if an error results from applying the
- * conversion rules.
- */
- public abstract Object coerceToType(
- Object obj,
- Class<?> targetType);
-
-}
-
-
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