Package com.alibaba.druid.pool

Examples of com.alibaba.druid.pool.PreparedStatementPool


    public void test_pscache() throws Exception {
        DruidPooledConnection conn = dataSource.getConnection();

        DruidConnectionHolder holder = conn.getConnectionHolder();
        PreparedStatementPool stmtPool = holder.getStatementPool();

        final String sql_0 = "select 0";
        final String sql_1 = "select 1";
        final String sql_2 = "select 2";
        final String sql_3 = "select 3";
        final String sql_4 = "select 4";

        Assert.assertEquals(0, stmtPool.size());

        PreparedStatementHolder stmtHoler_0;
        PreparedStatementHolder stmtHoler_1;
        PreparedStatementHolder stmtHoler_2;
        PreparedStatementHolder stmtHoler_3;
        PreparedStatementHolder stmtHoler_4;
       
        // sql_0连续执行两次
        {
            DruidPooledPreparedStatement stmt_0 = (DruidPooledPreparedStatement) conn.prepareStatement(sql_0);

            Assert.assertFalse(stmt_0.getPreparedStatementHolder().isPooling());

            stmt_0.close();
            Assert.assertEquals(1, stmtPool.size());
            Assert.assertTrue(stmt_0.getPreparedStatementHolder().isPooling());
        }
        {
            DruidPooledPreparedStatement stmt_0 = (DruidPooledPreparedStatement) conn.prepareStatement(sql_0);
            Assert.assertEquals(1, stmtPool.size());
            Assert.assertTrue(stmt_0.getPreparedStatementHolder().isInUse());
            Assert.assertTrue(stmt_0.getPreparedStatementHolder().isPooling());

            stmt_0.close();

            Assert.assertFalse(stmt_0.getPreparedStatementHolder().isInUse());
            Assert.assertTrue(stmt_0.getPreparedStatementHolder().isPooling());
            Assert.assertEquals(1, stmtPool.size());
        }
       
        DruidPooledPreparedStatement stmt_0 = (DruidPooledPreparedStatement) conn.prepareStatement(sql_0);
       
        stmtHoler_0 = stmt_0.getPreparedStatementHolder();
       
        Assert.assertTrue(stmtHoler_0.isInUse());
        Assert.assertTrue(stmtHoler_0.isPooling());
       
        stmt_0.execute();
       
        {
            DruidPooledPreparedStatement stmt_1 = (DruidPooledPreparedStatement) conn.prepareStatement(sql_1);
            Assert.assertEquals(1, stmtPool.size());
           
            stmtHoler_1 = stmt_1.getPreparedStatementHolder();
           
            Assert.assertTrue(stmt_1.getPreparedStatementHolder().isInUse());
            Assert.assertFalse(stmt_1.getPreparedStatementHolder().isPooling());

            stmt_1.close();

            Assert.assertFalse(stmt_1.getPreparedStatementHolder().isInUse());
            Assert.assertTrue(stmt_1.getPreparedStatementHolder().isPooling());
            Assert.assertTrue(stmt_1.getPreparedStatementHolder().isPooling());
            Assert.assertEquals(2, stmtPool.size());
        }
       
        Assert.assertTrue(stmtHoler_0.isPooling());
        Assert.assertTrue(stmtHoler_1.isPooling());
       
        {
            DruidPooledPreparedStatement stmt_2 = (DruidPooledPreparedStatement) conn.prepareStatement(sql_2);
            Assert.assertEquals(2, stmtPool.size());
           
            stmtHoler_2 = stmt_2.getPreparedStatementHolder();
           
            Assert.assertTrue(stmt_2.getPreparedStatementHolder().isInUse());
            Assert.assertFalse(stmt_2.getPreparedStatementHolder().isPooling());
           
            stmt_2.close();
           
            Assert.assertFalse(stmt_2.getPreparedStatementHolder().isInUse());
            Assert.assertTrue(stmt_2.getPreparedStatementHolder().isPooling());
            Assert.assertTrue(stmt_2.getPreparedStatementHolder().isPooling());
            Assert.assertEquals(3, stmtPool.size());
        }
       
        Assert.assertTrue(stmtHoler_0.isPooling());
        Assert.assertTrue(stmtHoler_1.isPooling());
        Assert.assertTrue(stmtHoler_2.isPooling());
       
        {
            DruidPooledPreparedStatement stmt_3 = (DruidPooledPreparedStatement) conn.prepareStatement(sql_3);
            Assert.assertEquals(3, stmtPool.size());
           
            stmtHoler_3 = stmt_3.getPreparedStatementHolder();
           
            Assert.assertTrue(stmt_3.getPreparedStatementHolder().isInUse());
            Assert.assertFalse(stmt_3.getPreparedStatementHolder().isPooling());
           
            stmt_3.close();
           
            Assert.assertFalse(stmt_3.getPreparedStatementHolder().isInUse());
            Assert.assertTrue(stmt_3.getPreparedStatementHolder().isPooling());
            Assert.assertTrue(stmt_3.getPreparedStatementHolder().isPooling());
            Assert.assertEquals(3, stmtPool.size());
        }
       
       
        Assert.assertFalse(stmtHoler_0.isPooling());
        Assert.assertTrue(stmtHoler_1.isPooling());
        Assert.assertTrue(stmtHoler_2.isPooling());
        Assert.assertTrue(stmtHoler_3.isPooling());
       
        {
            DruidPooledPreparedStatement stmt_4 = (DruidPooledPreparedStatement) conn.prepareStatement(sql_4);
            Assert.assertEquals(3, stmtPool.size());
           
            stmtHoler_4 = stmt_4.getPreparedStatementHolder();
           
            Assert.assertTrue(stmt_4.getPreparedStatementHolder().isInUse());
            Assert.assertFalse(stmt_4.getPreparedStatementHolder().isPooling());
           
            stmt_4.close();
           
            Assert.assertFalse(stmt_4.getPreparedStatementHolder().isInUse());
            Assert.assertTrue(stmt_4.getPreparedStatementHolder().isPooling());
            Assert.assertTrue(stmt_4.getPreparedStatementHolder().isPooling());
            Assert.assertEquals(3, stmtPool.size());
        }
       
        Assert.assertFalse(stmtHoler_0.isPooling());
        Assert.assertFalse(stmtHoler_1.isPooling());
        Assert.assertTrue(stmtHoler_2.isPooling());
View Full Code Here


    public void test_pscache() throws Exception {
        DruidPooledConnection conn = dataSource.getConnection();

        DruidConnectionHolder holder = conn.getConnectionHolder();
        PreparedStatementPool stmtPool = holder.getStatementPool();

        final String sql_0 = "select 0";
        final String sql_1 = "select 1";

        Assert.assertEquals(0, stmtPool.size());

        PreparedStatementHolder stmtHoler_0;
        PreparedStatementHolder stmtHoler_1_A;
        PreparedStatementHolder stmtHoler_1_B;
        PreparedStatementHolder stmtHoler_1_C;
View Full Code Here

    public void test_contains() throws Exception {
        DruidDataSource dataSource = new DruidDataSource();
        MockConnection conn = new MockConnection();
        PreparedStatementKey k1 = new PreparedStatementKey("x1", "c1", MethodType.M1);

        PreparedStatementPool pool = new PreparedStatementPool(new DruidConnectionHolder(dataSource, conn));
        MockPreparedStatement raw = new MockPreparedStatement(null, null);
        pool.put(new PreparedStatementHolder(k1, raw));

        Assert.assertTrue(pool.get(k1) != null);
        Assert.assertTrue(pool.get(k1) != null);
    }
View Full Code Here

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