br.com.objectos.way.sql.Transaction Maven / Gradle / Ivy

Go to download
/*
 * Copyright 2014 Objectos, Fábrica de Software LTDA.
 *
 * 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 br.com.objectos.way.sql;

import java.util.Iterator;

import br.com.objectos.way.core.auto.AutoPojo;

import com.google.common.collect.Iterators;
import com.google.common.collect.PeekingIterator;

/**
 * @author [email protected] (Marcio Endo)
 */
@AutoPojo
public abstract class Transaction extends SqlConnection {

  Transaction() {
  }

  public static TransactionBuilder builder() {
    return new TransactionBuilderPojo();
  }

  @Override
  public void commit() throws SqlException {
    super.commit();
  }

  public void insert(Object object) throws SqlException {
    checkIsInsertable(object);

    IsInsertable insertable = (IsInsertable) object;
    InsertValuesExe exe = insertable.compileInsertValues(this);
    insertable.bind(exe);
    exe.execute();
  }

  public  void insertAll(Iterable list) throws SqlException {
    Iterator iterator = list.iterator();
    if (!iterator.hasNext()) {
      return;
    }

    PeekingIterator peeking = Iterators.peekingIterator(iterator);
    T first = peeking.peek();
    checkIsInsertable(first);

    IsInsertable firstInsertable = (IsInsertable) first;
    InsertValuesExe exe = firstInsertable.compileInsertValues(this);

    while (peeking.hasNext()) {
      ((IsInsertable) peeking.next()).bind(exe);
    }

    exe.execute();
  }

  @Override
  public void rollback() throws SqlException {
    super.rollback();
  }

  private void checkIsInsertable(Object o) {
    if (!(o instanceof IsInsertable)) {
      throw new IllegalArgumentException();
    }
  }

}