Package org.apache.tools.ant.taskdefs.optional

## Class PropertyFile.Entry.Operation

- java.lang.Object
- - org.apache.tools.ant.types.EnumeratedAttribute
  - - org.apache.tools.ant.taskdefs.optional.PropertyFile.Entry.Operation

- Enclosing class:
    PropertyFile.Entry

      public static class PropertyFile.Entry.Operation
      extends EnumeratedAttribute

  Enumerated attribute with the values "+", "-", "="

- - ### Field Summary

    Fields
    Modifier and Type | Field | Description
    --- | --- | ---
    `static int` | `DECREMENT_OPER` | -
    `static int` | `DELETE_OPER` | del
    `static int` | `EQUALS_OPER` | =
    `static int` | `INCREMENT_OPER` | +

    - ### Fields inherited from class org.apache.tools.ant.types.EnumeratedAttribute

      `value`

  - ### Constructor Summary

    Constructors
    Constructor | Description
    --- | ---
    `Operation()` |

  - ### Method Summary

    All Methods Static Methods Instance Methods Concrete Methods
    Modifier and Type | Method | Description
    --- | --- | ---
    `java.lang.String[]` | `getValues()` | This is the only method a subclass needs to implement.
    `static int` | `toOperation​(java.lang.String oper)` | Convert string to index.

    - ### Methods inherited from class org.apache.tools.ant.types.EnumeratedAttribute

      `containsValue, getIndex, getInstance, getValue, indexOfValue, setValue, toString`

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

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

- - ### Field Detail

    - #### INCREMENT_OPER

          public static final int INCREMENT_OPER

      +
      See Also:
        Constant Field Values

    - #### DECREMENT_OPER

          public static final int DECREMENT_OPER

      -
      See Also:
        Constant Field Values

    - #### EQUALS_OPER

          public static final int EQUALS_OPER

      =
      See Also:
        Constant Field Values

    - #### DELETE_OPER

          public static final int DELETE_OPER

      del
      See Also:
        Constant Field Values

  - ### Constructor Detail

    - #### Operation

          public Operation()

  - ### Method Detail

    - #### getValues

          public java.lang.String[] getValues()

      This is the only method a subclass needs to implement..
      Specified by:
        `getValues` in class `EnumeratedAttribute`
      Returns:
        an array holding all possible values of the enumeration. The order of elements must be fixed so that `indexOfValue(String)` always return the same index for the same value.

    - #### toOperation

          public static int toOperation​(java.lang.String oper)

      Convert string to index.
      Parameters:
        `oper` - the string to convert.
      Returns:
        the index.