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DecodeCaseFragment.javaAPI DocHibernate 3.2.5962Wed Dec 01 22:09:50 GMT 2004org.hibernate.sql

DecodeCaseFragment

public class DecodeCaseFragment extends CaseFragment
An Oracle-style DECODE function.
decode(pkvalue, key1, 1, key2, 2, ..., 0)
author
Simon Harris

Fields Summary
Constructors Summary
Methods Summary
public java.lang.StringtoFragmentString()

		
		StringBuffer buf = new StringBuffer( cases.size() * 15 + 10 )
			.append("decode(");

		Iterator iter = cases.entrySet().iterator();
		while ( iter.hasNext() ) {
			Map.Entry me = (Map.Entry) iter.next();

			if ( iter.hasNext() ) {
				buf.append(", ")
					.append( me.getKey() )
					.append(", ")
					.append( me.getValue() );
			}
			else {
				buf.insert( 7, me.getKey() )
					.append(", ")
					.append( me.getValue() );
			}
		}

		buf.append(')");
		
		if (returnColumnName!=null) {
			buf.append(" as ")
				.append(returnColumnName);
		}
		
		return buf.toString();