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/*
 * Copyright (c) 1997, 2018 Oracle and/or its affiliates. All rights reserved.
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Public License v. 2.0, which is available at
 * http://www.eclipse.org/legal/epl-2.0.
 *
 * This Source Code may also be made available under the following Secondary
 * Licenses when the conditions for such availability set forth in the
 * Eclipse Public License v. 2.0 are satisfied: GNU General Public License,
 * version 2 with the GNU Classpath Exception, which is available at
 * https://www.gnu.org/software/classpath/license.html.
 *
 * SPDX-License-Identifier: EPL-2.0 OR GPL-2.0 WITH Classpath-exception-2.0
 */

package javax.faces.el;


import javax.faces.context.FacesContext;


/**
 * 

MethodBinding is an object that can be used * to call an arbitrary public method, on an instance that is acquired by * evaluatng the leading portion of a method binding expression via a * {@link ValueBinding}. An immutable {@link MethodBinding} for a particular * method binding expression can be acquired by calling the * createMethodBinding() method of the * {@link javax.faces.application.Application} instance for this web * application.

* * * @deprecated This has been replaced by {@link javax.el.MethodExpression}. */ public abstract class MethodBinding { /** *

Return the return value (if any) resulting from a call to the * method identified by this method binding expression, passing it * the specified parameters, relative to the specified {@link FacesContext}. *

* * @param context {@link FacesContext} for the current request * @param params Array of parameters to be passed to the called method, * or null for no parameters * * @throws EvaluationException if an exception is thrown * by the called method (the thrown exception must be included as the * cause property of this exception) * @throws MethodNotFoundException if no suitable method can be found * @throws NullPointerException if context * is null * * @return the result of the invocation */ public abstract Object invoke(FacesContext context, Object params[]) throws EvaluationException, MethodNotFoundException; /** *

Return the Java class representing the return type from the * method identified by this method binding expression.

* * @param context {@link FacesContext} for the current request * * @throws MethodNotFoundException if no suitable method can be found * @throws NullPointerException if context * is null * * @return the type of the return value */ public abstract Class getType(FacesContext context) throws MethodNotFoundException; /** *

Return the (possibly null) expression String, * with leading and trailing delimiters, from which this * MethodBinding was built. The default implementation * returns null.

* * @return the expression string */ public String getExpressionString() { return null; } }




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