net.sourceforge.pbeans.annotations
Annotation Type PropertyIndex

@Retention(value=RUNTIME)
public @interface PropertyIndex

This annotation can be part of an array with which PersistentClass.indexes() is set.

Required Element Summary

java.lang.String[]	propertyNames
boolean	unique

Optional Element Summary

int	keyLength Number of characters used in index for string fields.

Element Detail

unique

public abstract boolean unique

propertyNames

public abstract java.lang.String[] propertyNames

keyLength

public abstract int keyLength

Number of characters used in index for string fields. This value is optional and whether it is actually used depends on the underlying database implementation. Sometimes it's necessary to set it if indexes can't be created due to key length.

Default:

0