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UUIDHexGenerator.javaAPI DocHibernate 3.2.52275Tue Aug 30 18:28:50 BST 2005org.hibernate.id

UUIDHexGenerator

public class UUIDHexGenerator extends AbstractUUIDGenerator implements Configurable
uuid

A UUIDGenerator that returns a string of length 32, This string will consist of only hex digits. Optionally, the string may be generated with separators between each component of the UUID. Mapping parameters supported: separator.
author
Gavin King

Fields Summary
private String
sep
Constructors Summary
Methods Summary
public voidconfigure(org.hibernate.type.Type type, java.util.Properties params, org.hibernate.dialect.Dialect d)

		sep = PropertiesHelper.getString("separator", params, "");
	
protected java.lang.Stringformat(int intval)


	    
		String formatted = Integer.toHexString(intval);
		StringBuffer buf = new StringBuffer("00000000");
		buf.replace( 8-formatted.length(), 8, formatted );
		return buf.toString();
	
protected java.lang.Stringformat(short shortval)

		String formatted = Integer.toHexString(shortval);
		StringBuffer buf = new StringBuffer("0000");
		buf.replace( 4-formatted.length(), 4, formatted );
		return buf.toString();
	
public java.io.Serializablegenerate(org.hibernate.engine.SessionImplementor session, java.lang.Object obj)

		return new StringBuffer(36)
			.append( format( getIP() ) ).append(sep)
			.append( format( getJVM() ) ).append(sep)
			.append( format( getHiTime() ) ).append(sep)
			.append( format( getLoTime() ) ).append(sep)
			.append( format( getCount() ) )
			.toString();
	
public static voidmain(java.lang.String[] args)

		Properties props = new Properties();
		props.setProperty("separator", "/");
		IdentifierGenerator gen = new UUIDHexGenerator();
		( (Configurable) gen ).configure(Hibernate.STRING, props, null);
		IdentifierGenerator gen2 = new UUIDHexGenerator();
		( (Configurable) gen2 ).configure(Hibernate.STRING, props, null);

		for ( int i=0; i<10; i++) {
			String id = (String) gen.generate(null, null);
			System.out.println(id);
			String id2 = (String) gen2.generate(null, null);
			System.out.println(id2);
		}