Commons DBCP example source code file (TestDelegatingDatabaseMetaData.java)

This example Commons DBCP source code file (TestDelegatingDatabaseMetaData.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

Java - Commons DBCP tags/keywords

connection, databasemetadata, delegatingconnection, delegatingdatabasemetadata, delegatingdatabasemetadata, exception, exception, jdbc, no, no, sql, sqlexception, testcase, testdelegatingdatabasemetadata, testdelegatingdatabasemetadata, testerconnection

The Commons DBCP TestDelegatingDatabaseMetaData.java source code

/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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 org.apache.commons.dbcp;

import java.sql.Connection;
import java.sql.DatabaseMetaData;
import java.sql.ResultSet;
import java.sql.SQLException;

import junit.framework.Test;
import junit.framework.TestCase;
import junit.framework.TestSuite;

/**
 * Test suite for {@link DelegatingDatabaseMetaData}.
 */
public class TestDelegatingDatabaseMetaData extends TestCase {
    public TestDelegatingDatabaseMetaData(String testName) {
        super(testName);
    }

    public static Test suite() {
        return new TestSuite(TestDelegatingDatabaseMetaData.class);
    }

    private DelegatingConnection conn = null;
    private Connection delegateConn = null;
    private DelegatingDatabaseMetaData meta = null;
    private DatabaseMetaData delegateMeta = null;

    public void setUp() throws Exception {
        delegateConn = new TesterConnection("test", "test");
        delegateMeta = delegateConn.getMetaData();
        conn = new DelegatingConnection(delegateConn);
        meta = new DelegatingDatabaseMetaData(conn,delegateMeta);
    }

    public void testGetDelegate() throws Exception {
        assertEquals(delegateMeta,meta.getDelegate());
    }

    public void testHashCode() {
        try {
            delegateMeta = conn.getMetaData();
        } catch (SQLException e) {
            fail("No exception expected retrieving meta data");
        }
        DelegatingDatabaseMetaData meta1 =
            new DelegatingDatabaseMetaData(conn,delegateMeta);
        DelegatingDatabaseMetaData meta2 =
            new DelegatingDatabaseMetaData(conn,delegateMeta);
        assertEquals(meta1.hashCode(), meta2.hashCode());
    }
    
    public void testEquals() {
        try {
            delegateMeta = conn.getMetaData();
        } catch (SQLException e) {
            fail("No exception expected retrieving meta data");
        }
        DelegatingDatabaseMetaData meta1 =
            new DelegatingDatabaseMetaData(conn,delegateMeta);
        DelegatingDatabaseMetaData meta2 =
            new DelegatingDatabaseMetaData(conn,delegateMeta);
        DelegatingDatabaseMetaData meta3 =
            new DelegatingDatabaseMetaData(conn,null);
        
        assertTrue(!meta1.equals(null));
        assertTrue(meta1.equals(meta2));
        assertTrue(!meta1.equals(meta3));
    }
    
    /* JDBC_4_ANT_KEY_BEGIN */
    public void testCheckOpen() throws Exception {
        ResultSet rst = meta.getSchemas();
        assertTrue(!rst.isClosed());
        conn.close();
        assertTrue(rst.isClosed());
    }
    /* JDBC_4_ANT_KEY_END */
}