Class ScriptValueExtractor<T,​E>

    • Constructor Detail

      • ScriptValueExtractor

        public ScriptValueExtractor()
        Default constructor for deserialization.
      • ScriptValueExtractor

        public ScriptValueExtractor​(String sLanguage,
                                    String sName,
                                    Object... aoArgs)
        Create a ValueExtractor that wraps the specified script.
        Parameters:
        sLanguage - the language the script is written
        sName - the name of the ValueExtractor that needs to be evaluated
        aoArgs - the arguments to be passed to the script during evaluation
    • Method Detail

      • extract

        public E extract​(T target)
        Description copied from interface: ValueExtractor
        Extract the value from the passed object. The returned value may be null. For intrinsic types, the returned value is expected to be a standard wrapper type in the same manner that reflection works; for example, int would be returned as a java.lang.Integer.
        Specified by:
        extract in interface ValueExtractor<T,​E>
        Overrides:
        extract in class AbstractExtractor<T,​E>
        Parameters:
        target - the object to extract the value from
        Returns:
        the extracted value; null is an acceptable value
      • readExternal

        public void readExternal​(DataInput in)
                          throws IOException
        Description copied from interface: ExternalizableLite
        Restore the contents of this object by loading the object's state from the passed DataInput object.
        Specified by:
        readExternal in interface ExternalizableLite
        Parameters:
        in - the DataInput stream to read data from in order to restore the state of this object
        Throws:
        IOException - if an I/O exception occurs
        NotActiveException - if the object is not in its initial state, and therefore cannot be deserialized into
      • writeExternal

        public void writeExternal​(DataOutput out)
                           throws IOException
        Description copied from interface: ExternalizableLite
        Save the contents of this object by storing the object's state into the passed DataOutput object.
        Specified by:
        writeExternal in interface ExternalizableLite
        Parameters:
        out - the DataOutput stream to write the state of this object to
        Throws:
        IOException - if an I/O exception occurs
      • readExternal

        public void readExternal​(PofReader in)
                          throws IOException
        Description copied from interface: PortableObject
        Restore the contents of a user type instance by reading its state using the specified PofReader object.
        Specified by:
        readExternal in interface PortableObject
        Parameters:
        in - the PofReader from which to read the object's state
        Throws:
        IOException - if an I/O error occurs
      • writeExternal

        public void writeExternal​(PofWriter out)
                           throws IOException
        Description copied from interface: PortableObject
        Save the contents of a POF user type instance by writing its state using the specified PofWriter object.
        Specified by:
        writeExternal in interface PortableObject
        Parameters:
        out - the PofWriter to which to write the object's state
        Throws:
        IOException - if an I/O error occurs