com.microsoft.sqlserver.jdbc.SQLServerSavepoint Maven / Gradle / Ivy
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/*
* Microsoft JDBC Driver for SQL Server Copyright(c) Microsoft Corporation All rights reserved. This program is made
* available under the terms of the MIT License. See the LICENSE file in the project root for more information.
*/
package com.microsoft.sqlserver.jdbc;
import java.text.MessageFormat;
/**
* Provides an implementation of JDBC Interface java.sql.Savepoint. A savepoint is checkpoint to which a transaction can
* be rolled back. Savepoints are defined relative to a connection.
*
* The API javadoc for JDBC API methods that this class implements are not repeated here. Please see Sun's JDBC API
* interfaces javadoc for those details.
*/
public final class SQLServerSavepoint implements ISQLServerSavepoint {
/**
* Always update serialVersionUID when prompted.
*/
private static final long serialVersionUID = 1857415943191289598L;
private final String sName;
private final int nId;
private final SQLServerConnection con;
/**
* Constructs a SQLServerSavepoint.
*
* @param con
* the connection
* @param sName
* the savepoint name
*/
public SQLServerSavepoint(SQLServerConnection con, String sName) {
this.con = con;
if (sName == null) {
nId = con.getNextSavepointId();
this.sName = null;
} else {
this.sName = sName;
nId = 0;
}
}
@Override
public String getSavepointName() throws SQLServerException {
if (sName == null)
SQLServerException.makeFromDriverError(con, null, SQLServerException.getErrString("R_savepointNotNamed"),
null, false);
return sName;
}
@Override
public String getLabel() {
if (sName == null)
return "S" + nId;
else
return sName;
}
@Override
public boolean isNamed() {
return sName != null;
}
@Override
public int getSavepointId() throws SQLServerException {
if (sName != null) {
MessageFormat form = new MessageFormat(SQLServerException.getErrString("R_savepointNamed"));
Object[] msgArgs = {sName};
SQLServerException.makeFromDriverError(con, null, form.format(msgArgs), null, false);
}
return nId;
}
}