Class AbstractExecutor

java.lang.Object
org.apache.commons.jexl2.internal.AbstractExecutor
Direct Known Subclasses:
AbstractExecutor.Get, AbstractExecutor.Method, AbstractExecutor.Set
public abstract class AbstractExecutor extends Object
Abstract class that is used to execute an arbitrary method that is introspected. This is the superclass for all other AbstractExecutor classes.
Since:
1.0

  • Nested Class Summary

    Nested Classes
    Modifier and Type
    Class
    Description
    static class 
    AbstractExecutor.Get
    Abstract class that is used to execute an arbitrary 'get' method.
    static class 
    AbstractExecutor.Method
    Abstract class that is used to execute an arbitrary method.
    static class 
    AbstractExecutor.Set
    Abstract class that is used to execute an arbitrary 'set' method.

  • Field Summary

    Fields
    Modifier and Type
    Field
    Description
    protected final Method
    method
    Method to be executed.
    protected final Class<?>
    objectClass
    The class this executor applies to.
    static final Object
    TRY_FAILED
    A marker for invocation failures in tryInvoke.

  • Constructor Summary

    Constructors
    Modifier
    Constructor
    Description
    protected
    AbstractExecutor(Class<?> theClass, Method theMethod)
    Default and sole constructor.

  • Method Summary

    Modifier and Type
    Method
    Description
    boolean
    equals(Object obj)
    boolean
    equals(AbstractExecutor arg)
    Indicates whether some other executor is equivalent to this one.
    final Method
    getMethod()
    Gets the method to be executed or used as a marker.
    final String
    getMethodName()
    Gets the method name used.
    final Class<?>
    getTargetClass()
    Gets the object class targeted by this executor.
    Object
    getTargetProperty()
    Gets the property targeted by this executor.
    int
    hashCode()
    final boolean
    isAlive()
    Tell whether the executor is alive by looking at the value of the method.
    boolean
    isCacheable()
    Specifies if this executor is cacheable and able to be reused for this class of object it was returned for.
    final boolean
    tryFailed(Object exec)
    Checks whether a tryExecute failed or not.

    Methods inherited from class Object

    clone, finalize, getClass, notify, notifyAll, toString, wait, wait, wait

  • Field Details

    • TRY_FAILED

      public static final Object TRY_FAILED
      A marker for invocation failures in tryInvoke.

    • objectClass

      protected final Class<?> objectClass
      The class this executor applies to.

    • method

      protected final Method method
      Method to be executed.

  • Constructor Details

    • AbstractExecutor

      protected AbstractExecutor(Class<?> theClass, Method theMethod)
      Default and sole constructor.
      Parameters:
      theClass - the class this executor applies to
      theMethod - the method held by this executor

  • Method Details

    • equals

      public boolean equals(Object obj)
      Overrides:
      equals in class Object

    • hashCode

      public int hashCode()
      Overrides:
      hashCode in class Object

    • equals

      public boolean equals(AbstractExecutor arg)
      Indicates whether some other executor is equivalent to this one.
      Parameters:
      arg - the other executor to check
      Returns:
      true if both executors are equivalent, false otherwise

    • isAlive

      public final boolean isAlive()
      Tell whether the executor is alive by looking at the value of the method.
      Returns:
      boolean Whether the executor is alive.

    • isCacheable

      public boolean isCacheable()
      Specifies if this executor is cacheable and able to be reused for this class of object it was returned for.
      Returns:
      true if can be reused for this class, false if not

    • getMethod

      public final Method getMethod()
      Gets the method to be executed or used as a marker.
      Returns:
      Method The method used by execute in derived classes.

    • getTargetClass

      public final Class<?> getTargetClass()
      Gets the object class targeted by this executor.
      Returns:
      the target object class

    • getTargetProperty

      public Object getTargetProperty()
      Gets the property targeted by this executor.
      Returns:
      the target property

    • getMethodName

      public final String getMethodName()
      Gets the method name used.
      Returns:
      method name

    • tryFailed

      public final boolean tryFailed(Object exec)
      Checks whether a tryExecute failed or not.
      Parameters:
      exec - the value returned by tryExecute
      Returns:
      true if tryExecute failed, false otherwise