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

# Class LastModifiedAlgorithm

java.lang.Object
org.apache.tools.ant.types.selectors.modifiedselector.LastModifiedAlgorithm

All Implemented Interfaces:
  `Algorithm`

public class LastModifiedAlgorithm extends Object implements Algorithm
Computes a 'timestamp' of file based on the lastModified time of that file.

Since:
  Ant 1.10.6 and 1.9.14
Version:
  2018-07-25

## Constructor Summary

Constructors
Constructor
Description
`LastModifiedAlgorithm()`

## Method Summary

Modifier and Type
Method
Description
`String`
`getValue(File file)`
Computes a 'timestamp' for a file based on the lastModified time.
`boolean`
`isValid()`
This algorithm doesn't need any configuration.

### Methods inherited from class java.lang.Object

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

## Constructor Details

### LastModifiedAlgorithm

public LastModifiedAlgorithm()

## Method Details

### isValid

public boolean isValid()
This algorithm doesn't need any configuration. Therefore it's always valid.

Specified by:
  `isValid` in interface `Algorithm`
Returns:
  always true

### getValue

public String getValue(File file)
Computes a 'timestamp' for a file based on the lastModified time.

Specified by:
  `getValue` in interface `Algorithm`
Parameters:
  `file` - The file for which the value should be computed
Returns:
  the timestamp or null if the timestamp couldn't be computed