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RESOLVED - issue BATCH-149: ClobUserType is the wrong base type for BatchStatus

Browse Source 
http://opensource.atlassian.com/projects/spring/browse/BATCH-149

Use the ImmutableValueUserType that was introduced for ExitStatus.
This commit is contained in:
dsyer
2007-10-01 20:11:49 +00:00
parent ae0b997df5
commit 4dc2467a12
3 changed files with 51 additions and 27 deletions
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60
execution/src/main/java/org/springframework/batch/execution/repository/dao/BatchStatusUserType.java
View File

@@ -19,47 +19,53 @@ package org.springframework.batch.execution.repository.dao;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Types;
import org.hibernate.HibernateException;
import org.springframework.batch.core.domain.BatchStatus;
import org.springframework.jdbc.support.lob.LobCreator;
import org.springframework.jdbc.support.lob.LobHandler;
import org.springframework.orm.hibernate3.support.ClobStringType;
/**
* User type object to help Hibernate to persist {@link BatchStatus} objects
* (just plonking it a Clob).
* (just plonking it a String).
*
* @author tomas.slanina
* @author Dave Syer
*
*/
public class BatchStatusUserType extends ClobStringType {
public class BatchStatusUserType extends ImmutableValueUserType {
/**
* Get a {@link BatchStatus} from a Clob.
*
* @return a {@link BatchStatus} object whose string representation is the
* same as the database value.
*
* @see org.springframework.orm.hibernate3.support.ClobStringType#nullSafeGetInternal(java.sql.ResultSet,
* java.lang.String[], java.lang.Object,
* org.springframework.jdbc.support.lob.LobHandler)
/* (non-Javadoc)
* @see org.springframework.batch.execution.repository.dao.ImmutableValueUserType#sqlTypes()
*/
protected Object nullSafeGetInternal(ResultSet rs, String[] names, Object owner, LobHandler lobHandler)
throws SQLException {
String status = (String) super.nullSafeGetInternal(rs, names, owner, lobHandler);
return BatchStatus.getStatus(status);
public int[] sqlTypes() {
return new int[] { Types.VARCHAR };
}
/**
* Convert an object to a string and then pop it in a Clob.
*
* @see org.springframework.orm.hibernate3.support.ClobStringType#nullSafeSetInternal(java.sql.PreparedStatement,
* int, java.lang.Object, org.springframework.jdbc.support.lob.LobCreator)
* Get the
* @see org.springframework.batch.execution.repository.dao.ImmutableValueUserType#nullSafeGet(java.sql.ResultSet, java.lang.String[], java.lang.Object)
*/
protected void nullSafeSetInternal(PreparedStatement ps, int index, Object value, LobCreator lobCreator)
throws SQLException {
String status = (value == null) ? "" : value.toString();
super.nullSafeSetInternal(ps, index, status, lobCreator);
public Object nullSafeGet(ResultSet rs, String[] names, Object owner)
throws HibernateException, SQLException {
return BatchStatus.getStatus(rs.getString(names[0]));
}
/**
* Plonk a String representation of the status in the prepared statement.
*
* @see org.springframework.batch.execution.repository.dao.ImmutableValueUserType#nullSafeSet(java.sql.PreparedStatement, java.lang.Object, int)
*/
public void nullSafeSet(PreparedStatement st, Object value, int index)
throws HibernateException, SQLException {
st.setString(index, value.toString());
}
/* (non-Javadoc)
* @see org.springframework.batch.execution.repository.dao.ImmutableValueUserType#returnedClass()
*/
public Class returnedClass() {
return BatchStatus.class;
}
}

6
execution/src/main/java/org/springframework/batch/execution/repository/dao/ImmutableValueUserType.java
View File

@@ -31,6 +31,12 @@ public abstract class ImmutableValueUserType implements UserType {
}
public boolean equals(Object x, Object y) throws HibernateException {
if (x==null && y==null) {
return true;
}
if (x==null) {
return false;
}
return x.equals(y);
}