Class PReference


  • public final class PReference
    extends Value
    • Method Detail

      • toString

        public String toString()
        Description copied from class: Value
        Values must override the default method to return a string representation that is immutable.
        Specified by:
        toString in class Value
        Returns:
        String representation
      • hashCode

        public int hashCode()
        Description copied from class: Value
        Values must override the default hashcode method.
        Specified by:
        hashCode in class Value
        Returns:
        int hashcode
      • equals

        public boolean equals​(Object obj)
        Description copied from class: Value
        Values must override the default equals method. This method should only return true if the supplied Object is of the same type as the implementing Value. Values of an unknown type should be coerced before calling this method. This method does not have to guarantee that this.equals(that) == this.toString().equals(that.toString())
        Specified by:
        equals in class Value
        Returns:
        boolean
      • equivalent

        public boolean equivalent​(Value arg)
        Description copied from class: Value
        Indicates whether some other Value is equivalent to this one. Unlike Value.equals(java.lang.Object) this method is not symmetric - a value of a different type might be equivalent to this without the other type considering the reverse to be true.

        The default implementation uses identity or String equality.

        Overrides:
        equivalent in class Value
        Parameters:
        arg - value to test for equivalence
        Returns:
        true if value is equivalent to this
      • isEmpty

        public boolean isEmpty()
        Description copied from class: Value
        Check whether this Value is an empty value and has a zero length string representation. Subclasses may wish to override this for efficiency if the String representation is lazily created.
        Overrides:
        isEmpty in class Value
        Returns:
        boolean true if empty