//$Id: CaseFragment.java 4070 2004-07-23 05:30:26Z steveebersole $
package org.hibernate.sql;
import java.util.Map;
import org.hibernate.util.StringHelper;
import org.apache.commons.collections.SequencedHashMap;
/**
* Abstract SQL case fragment renderer
*
* @author Gavin King, Simon Harris
*/
public abstract class CaseFragment {
public abstract String toFragmentString();
protected String returnColumnName;
protected Map cases = new SequencedHashMap();
public CaseFragment setReturnColumnName(String returnColumnName) {
this.returnColumnName = returnColumnName;
return this;
}
public CaseFragment setReturnColumnName(String returnColumnName, String suffix) {
return setReturnColumnName( new Alias(suffix).toAliasString(returnColumnName) );
}
public CaseFragment addWhenColumnNotNull(String alias, String columnName, String value) {
cases.put( StringHelper.qualify(alias, columnName), value );
return this;
}
}
|