Java tutorial
/* * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER. * * Copyright (c) 1997-2018 Oracle and/or its affiliates. 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://oss.oracle.com/licenses/CDDL+GPL-1.1 * or 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 LICENSE.txt. * * GPL Classpath Exception: * Oracle designates this particular file as subject to the "Classpath" * exception as provided by Oracle in the GPL Version 2 section of the License * file that accompanied this code. * * Modifications: * If applicable, add the following below the License Header, with the fields * enclosed by brackets [] replaced by your own identifying information: * "Portions Copyright [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. */ package javax.resource.spi; /** <p>The ConnectionRequestInfo interface enables a resource adapter to * pass its own request specific data structure across the connection * request flow. A resource adapter extends the empty interface to * supports its own data structures for connection request. * * <p>A typical use allows a resource adapter to handle * application component specified per-connection request properties * (example - client ID, language). The application server passes these * properties back across to match/createManagedConnection calls on * the resource adapter. These properties remain opaque to the * application server during the connection request flow. * * <p>Once the ConnectionRequestInfo reaches match/createManagedConnection * methods on the ManagedConnectionFactory instance, resource adapter * uses this additional per-request information to do connection * creation and matching. * * @version 0.8 * @author Rahul Sharma * @see javax.resource.spi.ManagedConnectionFactory * @see javax.resource.spi.ManagedConnection **/ public interface ConnectionRequestInfo { /** Checks whether this instance is equal to another. Since * connectionRequestInfo is defined specific to a resource * adapter, the resource adapter is required to implement * this method. The conditions for equality are specific * to the resource adapter. * * @return True if the two instances are equal. **/ public boolean equals(Object other); /** Returns the hashCode of the ConnectionRequestInfo. * * @return hash code os this instance **/ public int hashCode(); }