Package org.eclnt.util.map

Class LazyLoadingMap<VALUECLASS>

java.lang.Object

java.util.AbstractMap<K,V>

java.util.HashMap<String,VALUECLASS>

org.eclnt.util.map.LazyLoadingMap<VALUECLASS>

All Implemented Interfaces:

Serializable, Cloneable, Map<String,VALUECLASS>

public class LazyLoadingMap<VALUECLASS>
extends HashMap<String,VALUECLASS>

Normal HashMap in which the get(Object) method is extended: if the Map does not yet contain a value with the corresponding key, then an interface is called to load the value.

This class is extending HashMap - so it is NOT thread safe!

See Also:

• Serialized Form

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static interface	LazyLoadingMap.ILazyLoader<BEANCLASS>

Nested classes/interfaces inherited from class java.util.AbstractMap

AbstractMap.SimpleEntry<K extends Object,V extends Object>, AbstractMap.SimpleImmutableEntry<K extends Object,V extends Object>

Nested classes/interfaces inherited from interface java.util.Map

Map.Entry<K extends Object,V extends Object>

Constructor Summary

Constructors

Constructor	Description
LazyLoadingMap()	If using this constructor then you MUST pass call the method setLoader(ILazyLoader) before using the instance.
LazyLoadingMap(LazyLoadingMap.ILazyLoader<VALUECLASS> loader)

Method Summary

Modifier and Type	Method	Description
VALUECLASS	get(Object key)
VALUECLASS	getDirectly(Object key)	Get against map which calls the "original" get of the map-processing.
LazyLoadingMap.ILazyLoader<VALUECLASS>	getLoader()
protected VALUECLASS	lazyLoad(String key)
void	setLoader(LazyLoadingMap.ILazyLoader<VALUECLASS> loader)

Methods inherited from class java.util.HashMap

clear, clone, compute, computeIfAbsent, computeIfPresent, containsKey, containsValue, entrySet, forEach, getOrDefault, isEmpty, keySet, merge, put, putAll, putIfAbsent, remove, remove, replace, replace, replaceAll, size, values

Methods inherited from class java.util.AbstractMap

equals, hashCode, toString

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.Map

equals, hashCode

Constructor Details

LazyLoadingMap

public LazyLoadingMap()

If using this constructor then you MUST pass call the method setLoader(ILazyLoader) before using the instance.

LazyLoadingMap

public LazyLoadingMap(LazyLoadingMap.ILazyLoader<VALUECLASS> loader)

Method Details

setLoader

public void setLoader(LazyLoadingMap.ILazyLoader<VALUECLASS> loader)

getLoader

public LazyLoadingMap.ILazyLoader<VALUECLASS> getLoader()

get

public VALUECLASS get(Object key)

Specified by:

get in interface Map<String,VALUECLASS>

Overrides:

get in class HashMap<String,VALUECLASS>

getDirectly

public VALUECLASS getDirectly(Object key)

Get against map which calls the "original" get of the map-processing. This means: no lazy-loading.

lazyLoad

protected VALUECLASS lazyLoad(String key)