Class AttributeMap

  • All Implemented Interfaces:
    java.io.Serializable, java.lang.Cloneable

    public class AttributeMap
    extends java.lang.Object
    implements java.io.Serializable, java.lang.Cloneable
    A attribute map holding <namspace;name>-value pairs.
    Author:
    Thomas Morgner
    See Also:
    Serialized Form
    • Constructor Summary

      Constructors 
      Constructor Description
      AttributeMap()
      Default constructor.
      AttributeMap​(AttributeMap copy)
      Creates a new attibute map using the given parameter as source for the initial values.
    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      java.lang.Object clone()
      Creates a copy of this map.
      boolean equals​(java.lang.Object o)  
      java.lang.Object getAttribute​(java.lang.String namespace, java.lang.String attribute)
      Returns the attribute value for the given namespace and attribute-name.
      java.util.Map getAttributes​(java.lang.String namespace)
      Returns all attributes of the given namespace as unmodifable map.
      java.lang.Object getFirstAttribute​(java.lang.String attribute)
      Looks up all namespaces and returns the value from the first namespace that has this attribute defined.
      java.lang.String[] getNames​(java.lang.String namespace)
      Returns all names for the given namespace that have values in this map.
      java.lang.String[] getNameSpaces()
      Returns all namespaces that have values in this map.
      int hashCode()  
      void putAll​(AttributeMap attributeMap)  
      java.lang.Object setAttribute​(java.lang.String namespace, java.lang.String attribute, java.lang.Object value)
      Defines the attribute for the given namespace and attribute name.
      • Methods inherited from class java.lang.Object

        getClass, notify, notifyAll, toString, wait, wait, wait
    • Constructor Detail

      • AttributeMap

        public AttributeMap()
        Default constructor.
      • AttributeMap

        public AttributeMap​(AttributeMap copy)
        Creates a new attibute map using the given parameter as source for the initial values.
        Parameters:
        copy - the attribute map that should be copied.
    • Method Detail

      • clone

        public java.lang.Object clone()
        Creates a copy of this map.
        Returns:
        the clone.
      • setAttribute

        public java.lang.Object setAttribute​(java.lang.String namespace,
                                             java.lang.String attribute,
                                             java.lang.Object value)
        Defines the attribute for the given namespace and attribute name.
        Parameters:
        namespace - the namespace under which the value should be stored.
        attribute - the attribute name under which the value should be stored within the namespace.
        value - the value.
        Returns:
        the previously stored value at that position.
      • getAttribute

        public java.lang.Object getAttribute​(java.lang.String namespace,
                                             java.lang.String attribute)
        Returns the attribute value for the given namespace and attribute-name.
        Parameters:
        namespace - the namespace.
        attribute - the attribute name.
        Returns:
        the value or null, if there is no such namespace/attribute name combination.
      • getFirstAttribute

        public java.lang.Object getFirstAttribute​(java.lang.String attribute)
        Looks up all namespaces and returns the value from the first namespace that has this attribute defined. As the order of the namespaces is not defined, this returns a random value and the namespace used is undefined if more than one namespace contains the same attribute.
        Parameters:
        attribute - the the attribute name.
        Returns:
        the object from the first namespace that carries this attribute or null, if none of the namespaces has such an attribute defined.
      • getAttributes

        public java.util.Map getAttributes​(java.lang.String namespace)
        Returns all attributes of the given namespace as unmodifable map.
        Parameters:
        namespace - the namespace for which the attributes should be returned.
        Returns:
        the map, never null.
      • getNames

        public java.lang.String[] getNames​(java.lang.String namespace)
        Returns all names for the given namespace that have values in this map.
        Parameters:
        namespace - the namespace for which known attribute names should be looked up.
        Returns:
        the names stored for the given namespace.
      • getNameSpaces

        public java.lang.String[] getNameSpaces()
        Returns all namespaces that have values in this map.
        Returns:
        the namespaces stored in this map.
      • putAll

        public void putAll​(AttributeMap attributeMap)
      • equals

        public boolean equals​(java.lang.Object o)
        Overrides:
        equals in class java.lang.Object
      • hashCode

        public int hashCode()
        Overrides:
        hashCode in class java.lang.Object