Cache (Camunda Platform Javadocs 7.16.18-ee)

java.lang.Object
- org.camunda.bpm.engine.impl.juel.Cache

All Implemented Interfaces:

TreeCache
```
public final class Cache
extends java.lang.Object
implements TreeCache
```
Simple (thread-safe) LRU cache. After the cache size reached a certain limit, the least recently used entry is removed, when adding a new entry.

Author:

Christoph Beck

Constructor Summary

Constructors
Constructor Description

Cache(int size)
Constructor.

Cache(int size, java.util.Map<java.lang.String,Tree> secondary)
Constructor.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`Tree`	`get(java.lang.String expression)`	Lookup tree
`void`	`put(java.lang.String expression, Tree tree)`	Cache tree

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - Cache
```
public Cache(int size)
```
    Constructor. Use a WeakHashMap as secondary map.
    
    Parameters:
    
    size - maximum primary cache size
  - Cache
```
public Cache(int size,
             java.util.Map<java.lang.String,Tree> secondary)
```
    Constructor. If the least recently used entry is removed from the primary cache, it is added to the secondary map.
    
    Parameters:
    
    size - maximum primary cache size
    
    secondary - the secondary map (may be null)
- Method Detail
  - get
```
public Tree get(java.lang.String expression)
```
    Description copied from interface: TreeCache
    
    Lookup tree
    
    Specified by:
    
    get in interface TreeCache
  - put
```
public void put(java.lang.String expression,
                Tree tree)
```
    Description copied from interface: TreeCache
    
    Cache tree
    
    Specified by:
    
    put in interface TreeCache