org.biojava.utils
Class OverlayMap

java.lang.Object
  |
  +--java.util.AbstractMap
        |
        +--org.biojava.utils.OverlayMap

All Implemented Interfaces:

java.util.Map

public class OverlayMap

extends java.util.AbstractMap

Overlap one map onto another. This allows you to have a map with local values and default values. The local and default values are provided by a child and parent map.

Author:

Thomas Down, Matthew Pocock

Constructor Summary

OverlayMap(java.util.Map parent)
Build a new map with default key-value pairs.

OverlayMap(java.util.Map parent, java.util.Map overlay)
Build a new map with default key-value pairs.

Method Summary

boolean	containsKey(java.lang.Object key)
java.util.Set	entrySet()
java.lang.Object	get(java.lang.Object key)
java.util.Map	getOverlayMap() Return the object containing the overlay mappings.
java.util.Map	getParentMap() Return the object containing the fallback mappings.
java.util.Set	keySet()
java.lang.Object	put(java.lang.Object key, java.lang.Object value)

Methods inherited from class java.util.AbstractMap

clear, clone, containsValue, equals, hashCode, isEmpty, putAll, remove, size, toString, values

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

OverlayMap

public OverlayMap(java.util.Map parent,
                  java.util.Map overlay)

Build a new map with default key-value pairs.

Parameters:

parent - the default fall-through Map

overlay - the overriding Map

OverlayMap

public OverlayMap(java.util.Map parent)

Build a new map with default key-value pairs.

Parameters:

parent - the default fall-through Map

Method Detail

getParentMap

public java.util.Map getParentMap()

Return the object containing the fallback mappings. This is the actual parent map, not a copy.

Returns:

the parent map

getOverlayMap

public java.util.Map getOverlayMap()

Return the object containing the overlay mappings. This is the actual child map, not a copy.

Returns:

the child map

get

public java.lang.Object get(java.lang.Object key)

Specified by:

get in interface java.util.Map

Overrides:

get in class java.util.AbstractMap

entrySet

public java.util.Set entrySet()

Specified by:

entrySet in interface java.util.Map

Specified by:

entrySet in class java.util.AbstractMap

keySet

public java.util.Set keySet()

Specified by:

keySet in interface java.util.Map

Overrides:

keySet in class java.util.AbstractMap

containsKey

public boolean containsKey(java.lang.Object key)

Specified by:

containsKey in interface java.util.Map

Overrides:

containsKey in class java.util.AbstractMap

put

public java.lang.Object put(java.lang.Object key,
                            java.lang.Object value)

Specified by:

put in interface java.util.Map

Overrides:

put in class java.util.AbstractMap