org.apache.ibatis.executor.statement.RoutingStatementHandler.java Source code

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Here is the source code for org.apache.ibatis.executor.statement.RoutingStatementHandler.java

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/**
 *    Copyright 2009-2019 the original author or authors.
 *
 *    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 org.apache.ibatis.executor.statement;

import java.sql.Connection;
import java.sql.SQLException;
import java.sql.Statement;
import java.util.List;

import org.apache.ibatis.cursor.Cursor;
import org.apache.ibatis.executor.Executor;
import org.apache.ibatis.executor.ExecutorException;
import org.apache.ibatis.executor.parameter.ParameterHandler;
import org.apache.ibatis.mapping.BoundSql;
import org.apache.ibatis.mapping.MappedStatement;
import org.apache.ibatis.session.ResultHandler;
import org.apache.ibatis.session.RowBounds;

/**
 * @author Clinton Begin
 */
public class RoutingStatementHandler implements StatementHandler {

    private final StatementHandler delegate;

    public RoutingStatementHandler(Executor executor, MappedStatement ms, Object parameter, RowBounds rowBounds,
            ResultHandler resultHandler, BoundSql boundSql) {

        switch (ms.getStatementType()) {
        case STATEMENT:
            delegate = new SimpleStatementHandler(executor, ms, parameter, rowBounds, resultHandler, boundSql);
            break;
        case PREPARED:
            delegate = new PreparedStatementHandler(executor, ms, parameter, rowBounds, resultHandler, boundSql);
            break;
        case CALLABLE:
            delegate = new CallableStatementHandler(executor, ms, parameter, rowBounds, resultHandler, boundSql);
            break;
        default:
            throw new ExecutorException("Unknown statement type: " + ms.getStatementType());
        }

    }

    @Override
    public Statement prepare(Connection connection, Integer transactionTimeout) throws SQLException {
        return delegate.prepare(connection, transactionTimeout);
    }

    @Override
    public void parameterize(Statement statement) throws SQLException {
        delegate.parameterize(statement);
    }

    @Override
    public void batch(Statement statement) throws SQLException {
        delegate.batch(statement);
    }

    @Override
    public int update(Statement statement) throws SQLException {
        return delegate.update(statement);
    }

    @Override
    public <E> List<E> query(Statement statement, ResultHandler resultHandler) throws SQLException {
        return delegate.query(statement, resultHandler);
    }

    @Override
    public <E> Cursor<E> queryCursor(Statement statement) throws SQLException {
        return delegate.queryCursor(statement);
    }

    @Override
    public BoundSql getBoundSql() {
        return delegate.getBoundSql();
    }

    @Override
    public ParameterHandler getParameterHandler() {
        return delegate.getParameterHandler();
    }
}