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 java.lang.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

    All Methods Instance Methods Concrete Methods
    Modifier and Type | Method | Description
    --- | --- | ---
    `java.lang.String` | `getValue​(java.io.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 Detail

    - #### LastModifiedAlgorithm

          public LastModifiedAlgorithm()

  - ### Method Detail

    - #### 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 java.lang.String getValue​(java.io.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