/*
* IronJacamar, a Java EE Connector Architecture implementation
* Copyright 2014, Red Hat Inc, and individual contributors
* as indicated by the @author tags. See the copyright.txt file in the
* distribution for a full listing of individual contributors.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the Eclipse Public License 1.0 as
* published by the Free Software Foundation.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the Eclipse
* Public License for more details.
*
* You should have received a copy of the Eclipse Public License
* along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.ironjacamar.common.api.metadata.ds;
import java.io.Serializable;
/**
*
* A TransactionIsolation.
* Define constants used as the possible
* transaction isolation levels
* in transaction-isolation type.
* Include: TRANSACTION_READ_UNCOMMITTED
* TRANSACTION_READ_COMMITTED
* TRANSACTION_REPEATABLE_READ TRANSACTION_SERIALIZABLE
* TRANSACTION_NONE
*
* @author <a href="stefano.maestri@ironjacamar.org">Stefano Maestri</a>
* @author <a href="jesper.pedersen@ironjacamar.org">Jesper Pedersen</a>
*/
public class TransactionIsolation implements Comparable<TransactionIsolation>, Serializable
{
private static final long serialVersionUID = 1L;
/**
* TRANSACTION_READ_UNCOMMITTED
*/
public static final TransactionIsolation TRANSACTION_READ_UNCOMMITTED =
new TransactionIsolation("TRANSACTION_READ_UNCOMMITTED", 1);
/**
* TRANSACTION_READ_COMMITTED
*/
public static final TransactionIsolation TRANSACTION_READ_COMMITTED =
new TransactionIsolation("TRANSACTION_READ_COMMITTED", 2);
/**
* TRANSACTION_REPEATABLE_READ,
*/
public static final TransactionIsolation TRANSACTION_REPEATABLE_READ =
new TransactionIsolation("TRANSACTION_REPEATABLE_READ", 4);
/**
* TRANSACTION_SERIALIZABLE,
*/
public static final TransactionIsolation TRANSACTION_SERIALIZABLE =
new TransactionIsolation("TRANSACTION_SERIALIZABLE", 8);
/**
* TRANSACTION_NONE;
*/
public static final TransactionIsolation TRANSACTION_NONE =
new TransactionIsolation("TRANSACTION_NONE", 0);
private String name;
private int constant;
/**
* Constructor
* @param n The name
* @param c The constant
*/
TransactionIsolation(String n, int c)
{
this.name = n;
this.constant = c;
}
/**
* {@inheritDoc}
*/
public int compareTo(TransactionIsolation o)
{
return ordinal() - o.ordinal();
}
/**
* Name
* @return The value
*/
public String name()
{
return name;
}
/**
* Ordinal
* @return The value
*/
public int ordinal()
{
return constant;
}
/**
* {@inheritDoc}
*/
public int hashCode()
{
int result = 31;
result += 7 * name.hashCode();
result += 7 * constant;
return result;
}
/**
* {@inheritDoc}
*/
public boolean equals(Object o)
{
if (this == o)
return true;
if (o == null || !(o instanceof TransactionIsolation))
return false;
TransactionIsolation ti = (TransactionIsolation)o;
if (name != null)
{
if (!name.equals(ti.name))
return false;
}
else
{
if (ti.name != null)
return false;
}
if (constant != ti.constant)
return false;
return true;
}
/**
* {@inheritDoc}
*/
public String toString()
{
return name;
}
/**
* Static method to get an instance
*
* @param v The value
* @return The instance
*/
public static TransactionIsolation forName(String v)
{
if (v != null && !v.trim().equals(""))
{
if ("TRANSACTION_READ_UNCOMMITTED".equalsIgnoreCase(v) || "1".equalsIgnoreCase(v))
{
return TRANSACTION_READ_UNCOMMITTED;
}
else if ("TRANSACTION_READ_COMMITTED".equalsIgnoreCase(v) || "2".equalsIgnoreCase(v))
{
return TRANSACTION_READ_COMMITTED;
}
else if ("TRANSACTION_REPEATABLE_READ".equalsIgnoreCase(v) || "4".equalsIgnoreCase(v))
{
return TRANSACTION_REPEATABLE_READ;
}
else if ("TRANSACTION_SERIALIZABLE".equalsIgnoreCase(v) || "8".equalsIgnoreCase(v))
{
return TRANSACTION_SERIALIZABLE;
}
else if ("TRANSACTION_NONE".equalsIgnoreCase(v) || "0".equalsIgnoreCase(v))
{
return TRANSACTION_NONE;
}
}
return null;
}
/**
* Static method to get an instance
* @param v The value
* @return The instance
*/
public static TransactionIsolation valueOf(String v)
{
return forName(v);
}
/**
* Custom transaction levels
* @param n The name
* @return The value
*/
public static TransactionIsolation customLevel(String n)
{
return new TransactionIsolation(n, Integer.MIN_VALUE);
}
}