CommandList.java

/*
 * Copyright 2014-2015 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 com.wplatform.ddal.command;

import java.util.ArrayList;

import com.wplatform.ddal.command.expression.ParameterInterface;
import com.wplatform.ddal.result.ResultInterface;

/**
 * Represents a list of SQL statements.
 */
class CommandList extends Command {

    private final Command command;
    private final String remaining;

    CommandList(Parser parser, String sql, Command c, String remaining) {
        super(parser, sql);
        this.command = c;
        this.remaining = remaining;
    }

    @Override
    public ArrayList<? extends ParameterInterface> getParameters() {
        return command.getParameters();
    }

    private void executeRemaining() {
        Command remainingCommand = session.prepareLocal(remaining);
        if (remainingCommand.isQuery()) {
            remainingCommand.query(0);
        } else {
            remainingCommand.update();
        }
    }

    @Override
    public int update() {
        int updateCount = command.executeUpdate();
        executeRemaining();
        return updateCount;
    }

    @Override
    public ResultInterface query(int maxrows) {
        ResultInterface result = command.query(maxrows);
        executeRemaining();
        return result;
    }

    @Override
    public boolean isQuery() {
        return command.isQuery();
    }

    @Override
    public boolean isTransactional() {
        return true;
    }

    @Override
    public boolean isReadOnly() {
        return false;
    }

    @Override
    public ResultInterface queryMeta() {
        return command.queryMeta();
    }

    @Override
    public int getCommandType() {
        return command.getCommandType();
    }

}