BuildEvent (Apache Ant API)
Date: 2018-03-24

org.apache.tools.ant

## Class BuildEvent

- java.lang.Object
- - java.util.EventObject
  - - org.apache.tools.ant.BuildEvent

- All Implemented Interfaces:
    java.io.Serializable

      public class BuildEvent
      extends java.util.EventObject

  Class representing an event occurring during a build. An event is built by specifying either a project, a task or a target. A project level event will only have a project reference; a target level event will have project and target references; a task level event will have project, target and task references.
  See Also:
    Serialized Form

- - ### Field Summary

    - ### Fields inherited from class java.util.EventObject

      `source`

  - ### Constructor Summary

    Constructors
    Constructor and Description
    `BuildEvent(Project project)` Construct a BuildEvent for a project level event.
    `BuildEvent(Target target)` Construct a BuildEvent for a target level event.
    `BuildEvent(Task task)` Construct a BuildEvent for a task level event.

  - ### Method Summary

    All Methods Instance Methods Concrete Methods
    Modifier and Type | Method and Description
    --- | ---
    `java.lang.Throwable` | `getException()` Returns the exception that was thrown, if any.
    `java.lang.String` | `getMessage()` Returns the logging message.
    `int` | `getPriority()` Returns the priority of the logging message.
    `Project` | `getProject()` Returns the project that fired this event.
    `Target` | `getTarget()` Returns the target that fired this event.
    `Task` | `getTask()` Returns the task that fired this event.
    `void` | `setException(java.lang.Throwable exception)` Sets the exception associated with this event.
    `void` | `setMessage(java.lang.String message, int priority)` Sets the message and priority associated with this event.

    - ### Methods inherited from class java.util.EventObject

      `getSource, toString`

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

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

- - ### Constructor Detail

    - #### BuildEvent

          public BuildEvent(Project project)

      Construct a BuildEvent for a project level event.
      Parameters:
        `project` - the project that emitted the event. Should not be `null`.

    - #### BuildEvent

          public BuildEvent(Target target)

      Construct a BuildEvent for a target level event. The project associated with the event is derived from the given target.
      Parameters:
        `target` - the target that emitted the event. Must not be `null`.

    - #### BuildEvent

          public BuildEvent(Task task)

      Construct a BuildEvent for a task level event. The project and target associated with the event are derived from the given task.
      Parameters:
        `task` - the task that emitted the event. Must not be `null`.

  - ### Method Detail

    - #### setMessage

          public void setMessage(java.lang.String message,
                                 int priority)

      Sets the message and priority associated with this event. This is used for "messageLogged" events.
      Parameters:
        `message` - the message to be associated with this event. Should not be `null`.
        `priority` - the priority to be associated with this event, as defined in the `Project` class.
      See Also:
        `BuildListener.messageLogged(BuildEvent)`

    - #### setException

          public void setException(java.lang.Throwable exception)

      Sets the exception associated with this event. This is used for "messageLogged", "taskFinished", "targetFinished", and "buildFinished" events.
      Parameters:
        `exception` - The exception to be associated with this event. May be `null`.
      See Also:
        `BuildListener.messageLogged(BuildEvent)`, `BuildListener.taskFinished(BuildEvent)`, `BuildListener.targetFinished(BuildEvent)`, `BuildListener.buildFinished(BuildEvent)`

    - #### getProject

          public Project getProject()

      Returns the project that fired this event.
      Returns:
        the project that fired this event

    - #### getTarget

          public Target getTarget()

      Returns the target that fired this event.
      Returns:
        the project that fired this event, or `null` if this event is a project level event.

    - #### getTask

          public Task getTask()

      Returns the task that fired this event.
      Returns:
        the task that fired this event, or `null` if this event is a project or target level event.

    - #### getMessage

          public java.lang.String getMessage()

      Returns the logging message. This field will only be set for "messageLogged" events.
      Returns:
        the message associated with this event, or `null` if no message has been set.
      See Also:
        `BuildListener.messageLogged(BuildEvent)`

    - #### getPriority

          public int getPriority()

      Returns the priority of the logging message. This field will only be set for "messageLogged" events. The meaning of this priority is as specified by the constants in the `Project` class.
      Returns:
        the priority associated with this event.
      See Also:
        `BuildListener.messageLogged(BuildEvent)`

    - #### getException

          public java.lang.Throwable getException()

      Returns the exception that was thrown, if any. This field will only be set for "messageLogged", "taskFinished", "targetFinished", and "buildFinished" events.
      Returns:
        the exception associated with this exception, or `null` if no exception has been set.
      See Also:
        `BuildListener.messageLogged(BuildEvent)`, `BuildListener.taskFinished(BuildEvent)`, `BuildListener.targetFinished(BuildEvent)`, `BuildListener.buildFinished(BuildEvent)`