org.apache.tools.ant.types.selectors.modifiedselector
Interface Algorithm

All Known Implementing Classes:
DigestAlgorithm, HashvalueAlgorithm

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
 java.lang.String getValue(java.io.File file)
          Get the value for a file.
 boolean isValid()
          Checks its prerequisites.
 

Method Detail

isValid

public boolean isValid()
Checks its prerequisites.

Returns:
true if all is ok, otherwise false.

getValue

public java.lang.String getValue(java.io.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


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