org.codehaus.groovy.runtime.callsite

## Class BooleanClosureWrapper

- java.lang.Object
- - org.codehaus.groovy.runtime.callsite.BooleanClosureWrapper

-     public class BooleanClosureWrapper
      extends java.lang.Object

  Helper class for internal use only. This allows to call a `Closure` and convert the result to a boolean. It will do this by caching the possible "doCall" as well as the "asBoolean" in CallSiteArray fashion. "asBoolean" will not be called if the result is null or a Boolean. In case of null we return false and in case of a Boolean we simply unbox. This logic is designed after the one present in `DefaultTypeTransformation.castToBoolean(Object)`. The purpose of this class is to avoid the slow "asBoolean" call in that method. `BooleanReturningMethodInvoker` is used for caching.
  Author:
    Jochen "blackdrag" Theodorou

- - ### Constructor Summary

    Constructors
    Constructor and Description
    `BooleanClosureWrapper(Closure wrapped)`

  - ### Method Summary

    All Methods Instance Methods Concrete Methods
    Modifier and Type | Method and Description
    --- | ---
    `boolean` | `call(java.lang.Object... args)` normal closure call
    `<K,V> boolean` | `callForMap(java.util.Map.Entry<K,V> entry)` Bridge for a call based on a map entry.

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

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

- - ### Constructor Detail

    - #### BooleanClosureWrapper

          public BooleanClosureWrapper(Closure wrapped)

  - ### Method Detail

    - #### call

          public boolean call(java.lang.Object... args)

      normal closure call

    - #### callForMap

          public <K,V> boolean callForMap(java.util.Map.Entry<K,V> entry)

      Bridge for a call based on a map entry. If the call is done on a `Closure` taking one argument, then we give in the `Map.Entry`, otherwise we will give in the key and value.