org.pentaho.reporting.libraries.xmlns.common

Class AttributeMap

java.lang.Object

org.pentaho.reporting.libraries.xmlns.common.AttributeMap

All Implemented Interfaces:

Serializable, Cloneable

public class AttributeMap
extends Object
implements Serializable, Cloneable

A attribute map holding <namspace;name>-value pairs.

Author:

Thomas Morgner

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
AttributeMap() Default constructor.
AttributeMap(AttributeMap copy) Creates a new attibute map using the given parameter as source for the initial values.

Method Summary

Methods

Modifier and Type	Method and Description
Object	clone() Creates a copy of this map.
Object	getAttribute(String namespace, String attribute) Returns the attribute value for the given namespace and attribute-name.
Map	getAttributes(String namespace) Returns all attributes of the given namespace as unmodifable map.
Object	getFirstAttribute(String attribute) Looks up all namespaces and returns the value from the first namespace that has this attribute defined.
String[]	getNames(String namespace) Returns all names for the given namespace that have values in this map.
String[]	getNameSpaces() Returns all namespaces that have values in this map.
Object	setAttribute(String namespace, String attribute, Object value) Defines the attribute for the given namespace and attribute name.

Methods inherited from class java.lang.Object

equals, getClass, hashCode, 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 Object clone()

Creates a copy of this map.

Overrides:

clone in class Object

Returns:

the clone.

setAttribute

public Object setAttribute(String namespace,
                  String attribute,
                  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 Object getAttribute(String namespace,
                  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 Object getFirstAttribute(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 Map getAttributes(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 String[] getNames(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 String[] getNameSpaces()

Returns all namespaces that have values in this map.

Returns:

the namespaces stored in this map.