Oracle Fusion Middleware Java API Reference for Oracle Extension SDK Reference
11g Release 1 (11.1.1.7.0)

E13403-08

oracle.javatools.util
Class Maps

java.lang.Object
  extended by oracle.javatools.util.Maps

public class Maps
extends java.lang.Object

An aggregation of abstract and concrete implementations of the Maps.AbstractHashMap interface which address various usage scenarios.

Most of the concrete map classes provided here extend, directly or indirectly, the abstract class Maps.AbstractHashMap, which provides a more extensible replacement for HashMap. These concrete classes are the following:

The following concrete Maps.CacheStrategy classes are provided:


Nested Class Summary
static class Maps.AbstractHashMap<K,V,E extends Maps.BaseEntry<K,V>>
          An abstract, but nearly complete, implementation of the Map interface that is functionally equivalent to HashMap but that allows subclasses to do any or all of the following: control the concrete class of Map.Entry instances used so long as they extend Maps.BaseEntry (see Maps.AbstractHashMap.createEntry(int, K, V, E)); override the calculation of hashCode and equals for all keys (see Maps.AbstractHashMap.keyHashCode(java.lang.Object) and Maps.AbstractHashMap.keyEquals(java.lang.Object, java.lang.Object)); override the calculation of hashCode and equals for all values (see Maps.AbstractHashMap.valueHashCode(java.lang.Object) and Maps.AbstractHashMap.valueEquals(java.lang.Object, java.lang.Object)); track when the map is constructed, initialized, and changed (see Maps.AbstractHashMap.mapConstructed(), Maps.AbstractHashMap.mapInitialized(), and Maps.AbstractHashMap.mapChanged()).
static class Maps.AbstractLinkedHashMap<K,V,E extends Maps.LinkedEntry<K,V>>
          An abstract, but nearly complete, implementation of the Map interface that is functionally equivalent to LinkedHashMap but is based on Maps.AbstractHashMap and allows subclasses the same customization options.
static interface Maps.BaseEntry<K,V>
          The extended Map.Entry interface required by Maps.AbstractHashMap for its entries.
static class Maps.BoundedLruCacheStrategy<K,V>
          A bounded size LRU (least recently used) cache strategy.
static class Maps.CacheMap<K,V>
           
static class Maps.CacheStrategy<K,V>
          An abstract caching strategy for a cache map.
static class Maps.EvictedLinkedEntry<K,V>
           
static interface Maps.LinkedEntry<K,V>
          The Map.Entry (and Maps.BaseEntry) extended interface required by Maps.AbstractLinkedHashMap for its entries.
static class Maps.ManagedCacheMap<K,V>
          A cache map which is an MBean and can be monitored by a JMX client (e.g., JConsole).
static interface Maps.ManagedCacheMapMBean
           
static class Maps.SoftEntry<K,V>
          An Maps.BaseEntry implementation which holds its value with a SoftReference.
static class Maps.SoftHashMap<K,V>
          An implementation of Maps.AbstractHashMap, based on Maps.SoftEntry, which holds its values with SoftReferences.
static class Maps.SoftLinkedEntry<K,V>
          An Maps.LinkedEntry implementation which holds its value with a SoftReference.
static class Maps.SoftLinkedHashMap<K,V>
          An implementation of Maps.AbstractLinkedHashMap, based on Maps.SoftLinkedEntry, which holds its values with SoftReferences.
static class Maps.StrongEntry<K,V>
          The default Maps.BaseEntry implementation.
static class Maps.StrongHashMap<K,V>
          The default implementation of Maps.AbstractHashMap, based on Maps.StrongEntry.
static class Maps.StrongLinkedEntry<K,V>
          The default Maps.LinkedEntry implementation.
static class Maps.StrongLinkedHashMap<K,V>
          The default implementation of Maps.AbstractLinkedHashMap, based on Maps.StrongLinkedEntry.
static interface Maps.TimedEntry<K,V>
           
static class Maps.TimedEvictedLinkedEntry<K,V>
           
static class Maps.TimedLruCacheStrategy<K,V>
          A timed, bounded size LRU cache strategy.
static class Maps.TimedSoftLinkedEntry<K,V>
           
static class Maps.TimedStrongLinkedEntry<K,V>
           
static class Maps.TimedWeakLinkedEntry<K,V>
           
static class Maps.UnboundedCacheStrategy<K,V>
          An unbounded cache strategy.
static class Maps.WeakEntry<K,V>
          An Maps.BaseEntry implementation which holds its value with a WeakReference.
static class Maps.WeakHashMap<K,V>
          An implementation of Maps.AbstractHashMap, based on Maps.WeakEntry, which holds its values with WeakReferences.
static class Maps.WeakLinkedEntry<K,V>
          An Maps.LinkedEntry implementation which holds its value with a WeakReference.
static class Maps.WeakLinkedHashMap<K,V>
          An implementation of Maps.AbstractLinkedHashMap, based on Maps.WeakLinkedEntry, which holds its values with WeakReferences.
 
Constructor Summary
Maps()
           
 
Method Summary
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

Maps

public Maps()

Oracle Fusion Middleware Java API Reference for Oracle Extension SDK Reference
11g Release 1 (11.1.1.7.0)

E13403-08

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