Class AbstractExecutor.Get

    • Constructor Detail

      • Get

        protected Get​(java.lang.Class<?> theClass,
                      java.lang.reflect.Method theMethod)
        Default and sole constructor.
        Parameters:
        theClass - the class this executor applies to
        theMethod - the method held by this executor
    • Method Detail

      • invoke

        public final java.lang.Object invoke​(java.lang.Object obj)
                                      throws java.lang.Exception
        Method used to get the property value of an object.
        Specified by:
        invoke in interface JexlPropertyGet
        Parameters:
        obj - the object to get the property value from.
        Returns:
        the property value.
        Throws:
        java.lang.Exception - on any error.
      • tryInvoke

        public final java.lang.Object tryInvoke​(java.lang.Object obj,
                                                java.lang.Object key)
        Attempts to reuse this JexlPropertyGet, checking that it is compatible with the actual set of arguments.
        Specified by:
        tryInvoke in interface JexlPropertyGet
        Parameters:
        obj - the object to invoke the property get upon
        key - the property key to get
        Returns:
        the result of the method invocation that should be checked by tryFailed to determine if it succeeded or failed.
      • execute

        public abstract java.lang.Object execute​(java.lang.Object obj)
                                          throws java.lang.IllegalAccessException,
                                                 java.lang.reflect.InvocationTargetException
        Gets the property value from an object.
        Parameters:
        obj - The object to get the property from.
        Returns:
        The property value.
        Throws:
        java.lang.IllegalAccessException - Method is inaccessible.
        java.lang.reflect.InvocationTargetException - Method body throws an exception.
      • tryExecute

        public java.lang.Object tryExecute​(java.lang.Object obj,
                                           java.lang.Object key)
        Tries to reuse this executor, checking that it is compatible with the actual set of arguments.

        Compatibility means that: o must be of the same class as this executor's target class and property must be of the same class as this executor's target property (for list and map based executors) and have the same value (for other types).

        Parameters:
        obj - The object to get the property from.
        key - The property to get from the object.
        Returns:
        The property value or TRY_FAILED if checking failed.