Package org.apache.wiki.workflow

Class Fact

java.lang.Object
org.apache.wiki.workflow.Fact
All Implemented Interfaces:
Serializable
public final class Fact
extends Object
implements Serializable
Represents a contextual artifact, which can be any serializable object, useful for making a Decision. Facts are key-value pairs, where the key is a String (message key) and the value is an arbitrary object. Generally, the supplied object's toString() method should return a human-readable String. Facts are immutable objects.
Since:
2.5
See Also:
Serialized Form

  • Constructor Details

    • Fact

      public Fact​(String messageKey, Serializable value)
      Constructs a new Fact with a supplied message key and value.
      Parameters:
      messageKey - the "name" of this fact, which should be an i18n message key
      value - the object to associate with the name

  • Method Details

    • getMessageKey

      public String getMessageKey()
      Returns this Fact's name, as represented an i18n message key.
      Returns:
      the message key

    • getValue

      public Serializable getValue()
      Returns this Fact's value.
      Returns:
      the value object

    • equals

      public boolean equals​(Object obj)
      Two Facts are considered equal if their message keys and value objects are equal.
      Overrides:
      equals in class Object
      Parameters:
      obj - the object to test
      Returns:
      true if logically equal, false if not

    • hashCode

      public int hashCode()
      Overrides:
      hashCode in class Object

    • toString

      public String toString()
      Returns a String representation of this Fact.
      Overrides:
      toString in class Object
      Returns:
      the representation