Package org.apache.tools.ant.types.selectors.modifiedselector

Interface Algorithm

All Known Implementing Classes:

ChecksumAlgorithm, DigestAlgorithm, HashvalueAlgorithm, LastModifiedAlgorithm

public interface Algorithm

The Algorithm defines how a value for a file is computed. It must be sure that multiple calls for the same file results in the same value. The implementing class should implement a useful toString() method.

Since:

Ant 1.6

Version:

2003-09-13

Method Summary

Modifier and Type	Method	Description
String	getValue(File file)	Get the value for a file.
boolean	isValid()	Checks its prerequisites.

Method Details

isValid

boolean isValid()

Checks its prerequisites.

Returns:

true if all is ok, otherwise false.

getValue

String getValue(File file)

Get the value for a file.

Parameters:

file - File object for which the value should be evaluated.

Returns:

The value for that file