org.mybatis.guice.transactional.TransactionAttribute Maven / Gradle / Ivy

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The MyBatis Guice module is easy-to-use Google Guice bridge for MyBatis sql mapping framework.
There is a newer version: 4.0.0
/*
 *    Copyright 2009-2022 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
 *
 *       https://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.mybatis.guice.transactional;

import javax.transaction.HeuristicMixedException;
import javax.transaction.HeuristicRollbackException;
import javax.transaction.InvalidTransactionException;
import javax.transaction.NotSupportedException;
import javax.transaction.RollbackException;
import javax.transaction.Status;
import javax.transaction.SystemException;
import javax.transaction.Transaction;
import javax.transaction.TransactionManager;

public enum TransactionAttribute {
  MANDATORY {
    @Override
    public TransactionToken begin(TransactionManager man) throws SystemException {
      if (man.getStatus() == Status.STATUS_NO_TRANSACTION) {
        throw new IllegalStateException(
            "A call is being made on a method that mandates a transaction but there is no current transaction.");
      }
      return new TransactionToken(man.getTransaction(), null, MANDATORY);
    }
  },
  NEVER {
    @Override
    public TransactionToken begin(TransactionManager man) throws SystemException {
      if (man.getStatus() == Status.STATUS_ACTIVE) {
        throw new IllegalStateException(
            "A call is being made on a method that forbids a transaction but there is a current transaction.");
      }
      return new TransactionToken(null, null, NEVER);
    }
  },
  NOTSUPPORTED {
    @Override
    public TransactionToken begin(TransactionManager man) throws SystemException {
      if (man.getStatus() == Status.STATUS_ACTIVE) {
        return new TransactionToken(null, man.suspend(), this);
      }
      return new TransactionToken(null, null, NOTSUPPORTED);
    }

    @Override
    public void finish(TransactionManager man, TransactionToken tranToken)
        throws SystemException, InvalidTransactionException, IllegalStateException {
      Transaction tran = tranToken.getSuspendedTransaction();
      if (tran != null) {
        man.resume(tran);
      }
    }
  },
  REQUIRED {
    @Override
    public TransactionToken begin(TransactionManager man) throws SystemException, NotSupportedException {
      if (man.getStatus() == Status.STATUS_NO_TRANSACTION) {
        man.begin();
        return new TransactionToken(man.getTransaction(), null, REQUIRED, true);
      }
      return new TransactionToken(man.getTransaction(), null, REQUIRED);
    }

    @Override
    public void finish(TransactionManager man, TransactionToken tranToken)
        throws SystemException, InvalidTransactionException, IllegalStateException, SecurityException,
        RollbackException, HeuristicMixedException, HeuristicRollbackException {

      if (tranToken.isCompletionAllowed()) {
        if (man.getStatus() == Status.STATUS_MARKED_ROLLBACK) {
          man.rollback();
        } else {
          man.commit();
        }
      }
    }
  },
  REQUIRESNEW {
    @Override
    public TransactionToken begin(TransactionManager man)
        throws SystemException, NotSupportedException, InvalidTransactionException, IllegalStateException {
      TransactionToken tranToken;
      if (man.getStatus() == Status.STATUS_ACTIVE) {
        tranToken = new TransactionToken(null, man.suspend(), REQUIRESNEW);
      } else {
        tranToken = new TransactionToken(null, null, REQUIRESNEW);
      }

      try {
        man.begin();
      } catch (NotSupportedException | SystemException e) {
        man.resume(tranToken.getSuspendedTransaction());
        throw e;
      }

      tranToken.setActiveTransaction(man.getTransaction());
      tranToken.setCompletionAllowed(true);

      return tranToken;
    }

    @Override
    public void finish(TransactionManager man, TransactionToken tranToken)
        throws SystemException, InvalidTransactionException, IllegalStateException, SecurityException,
        RollbackException, HeuristicMixedException, HeuristicRollbackException {
      if (tranToken.isCompletionAllowed()) {
        if (man.getStatus() == Status.STATUS_MARKED_ROLLBACK) {
          man.rollback();
        } else {
          man.commit();
        }
      }

      Transaction tran = tranToken.getSuspendedTransaction();
      if (tran != null) {
        man.resume(tran);
      }
    }
  },
  SUPPORTS {
    @Override
    public TransactionToken begin(TransactionManager man)
        throws SystemException, NotSupportedException, InvalidTransactionException, IllegalStateException {
      if (man.getStatus() == Status.STATUS_ACTIVE) {
        return new TransactionToken(man.getTransaction(), null, SUPPORTS);
      }

      return new TransactionToken(null, null, SUPPORTS);
    }
  };

  public static TransactionAttribute fromValue(String value) {
    return valueOf(value.toUpperCase());
  }

  public TransactionToken begin(TransactionManager man)
      throws SystemException, NotSupportedException, InvalidTransactionException, IllegalStateException {

    return null;
  }

  public void finish(TransactionManager man, TransactionToken tranToken)
      throws SystemException, InvalidTransactionException, IllegalStateException, SecurityException, RollbackException,
      HeuristicMixedException, HeuristicRollbackException {

  }
}