org.openrdf.query.algebra.evaluation.function.hash
Class HashFunction

java.lang.Object
  org.openrdf.query.algebra.evaluation.function.hash.HashFunction

All Implemented Interfaces:

Function

Direct Known Subclasses:

MD5, SHA1, SHA256, SHA384, SHA512

public abstract class HashFunction
extends Object
implements Function

Abstract hash function

Author:

jeen

Constructor Summary

HashFunction()

Method Summary

abstract Literal	evaluate(ValueFactory valueFactory, Value... args)
protected String	hash(String text, String algorithm)

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.openrdf.query.algebra.evaluation.function.Function

getURI

Constructor Detail

HashFunction

public HashFunction()

Method Detail

hash

protected String hash(String text,
                      String algorithm)
               throws NoSuchAlgorithmException

Throws:

NoSuchAlgorithmException

evaluate

public abstract Literal evaluate(ValueFactory valueFactory,
                                 Value... args)
                          throws ValueExprEvaluationException

Specified by:

evaluate in interface Function

Throws:

ValueExprEvaluationException