org.apache.tapestry5.corelib.components

## Class Unless

- java.lang.Object
- - org.apache.tapestry5.corelib.base.AbstractConditional
  - - org.apache.tapestry5.corelib.components.Unless

-     public class Unless
      extends AbstractConditional

  A close relative of the `If` component that inverts the meaning of its test. This is easier than an `If` component with the negate parameter set to `true`.

  Component Parameters
  Name | Type | Flags | Default | Default Prefix
  --- | --- | --- | --- | ---
  else | org.apache.tapestry5.Block |  |  | literal
  An alternate org.apache.tapestry5.Block to render if org.apache.tapestry5.corelib.base.AbstractConditional#test() is false. The default, null, means render nothing in that situation.
  test | boolean | Required |  | prop
  If true, then the body of the component is omitted. If false, the body is rendered.

- - ### Constructor Summary

    Constructors
    Constructor and Description
    `Unless()`

  - ### Method Summary

    Methods
    Modifier and Type | Method and Description
    --- | ---
    `protected boolean` | `test()` Performs the test via the parameters; return true to render the body of the component, false to render the else block (or nothing).

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

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

- - ### Constructor Detail

    - #### Unless

          public Unless()

  - ### Method Detail

    - #### test

          protected boolean test()

      Description copied from class: `AbstractConditional`
      Performs the test via the parameters; return true to render the body of the component, false to render the else block (or nothing).
      Specified by:
        `test` in class `AbstractConditional`
      Returns:
        test parameter inverted

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