Package com.orientechnologies.orient.core.index.engine

Class UniqueIndexEngineValidator

java.lang.Object

com.orientechnologies.orient.core.index.engine.UniqueIndexEngineValidator

All Implemented Interfaces:

IndexEngineValidator<Object,ORID>

public class UniqueIndexEngineValidator
extends Object
implements IndexEngineValidator<Object,ORID>

Field Summary

Fields inherited from interface com.orientechnologies.orient.core.index.engine.IndexEngineValidator

IGNORE

Constructor Summary

Constructors

Constructor	Description
UniqueIndexEngineValidator(OIndexUnique oIndexUnique)

Method Summary

Modifier and Type	Method	Description
Object	validate(Object key, ORID oldValue, ORID newValue)	Validates the put operation for the given key, the old value and the new value.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

UniqueIndexEngineValidator

public UniqueIndexEngineValidator(OIndexUnique oIndexUnique)

Parameters:

oIndexUnique -

Method Details

validate

public Object validate(Object key,
 ORID oldValue,
 ORID newValue)

Description copied from interface: IndexEngineValidator

Validates the put operation for the given key, the old value and the new value. May throw an exception to abort the current put operation with an error.

Specified by:

validate in interface IndexEngineValidator<Object,ORID>

Parameters:

key - the put operation key.

oldValue - the old value or null if no value is currently stored.

newValue - the new value passed to validatedPut(Object, OIdentifiable, Validator).

Returns:

the new value to store, may differ from the passed one, or the special IndexEngineValidator.IGNORE value to silently ignore the put operation request being processed.