package org.hibernate.engine;
import java.io.Serializable;
import java.io.ObjectStreamException;
import java.io.InvalidObjectException;
/**
* For persistence operations (INSERT, UPDATE, DELETE) what style of determining
* results (success/failure) is to be used.
*
* @author Steve Ebersole
*/
public class ExecuteUpdateResultCheckStyle implements Serializable {
/**
* Do not perform checking. Either user simply does not want checking, or is
* indicating a {@link java.sql.CallableStatement} execution in which the
* checks are being performed explicitly and failures are handled through
* propogation of {@link java.sql.SQLException}s.
*/
public static final ExecuteUpdateResultCheckStyle NONE = new ExecuteUpdateResultCheckStyle( "none" );
/**
* Perform row-count checking. Row counts are the int values returned by both
* {@link java.sql.PreparedStatement#executeUpdate()} and
* {@link java.sql.Statement#executeBatch()}. These values are checked
* against some expected count.
*/
public static final ExecuteUpdateResultCheckStyle COUNT = new ExecuteUpdateResultCheckStyle( "rowcount" );
/**
* Essentially the same as {@link #COUNT} except that the row count actually
* comes from an output parameter registered as part of a
* {@link java.sql.CallableStatement}. This style explicitly prohibits
* statement batching from being used...
*/
public static final ExecuteUpdateResultCheckStyle PARAM = new ExecuteUpdateResultCheckStyle( "param" );
private final String name;
private ExecuteUpdateResultCheckStyle(String name) {
this.name = name;
}
private Object readResolve() throws ObjectStreamException {
Object resolved = parse( name );
if ( resolved == null ) {
throw new InvalidObjectException( "unknown result style [" + name + "]" );
}
return resolved;
}
public static ExecuteUpdateResultCheckStyle parse(String name) {
if ( name.equals( NONE.name ) ) {
return NONE;
}
else if ( name.equals( COUNT.name ) ) {
return COUNT;
}
else if ( name.equals( PARAM.name ) ) {
return PARAM;
}
else {
return null;
}
}
public static ExecuteUpdateResultCheckStyle determineDefault(String customSql, boolean callable) {
if ( customSql == null ) {
return COUNT;
}
else {
return callable ? PARAM : COUNT;
}
}
}