ObjectCache

java.lang.Object
- ghidra.util.datastruct.ObjectCache

```
public class ObjectCache
extends java.lang.Object
```
ObjectClass provides a fixed-size long-key-based object cache. Both a hard and weak cache are maintained, where the weak cache is only limited by available memory. This cache mechanism is useful in ensuring that only a single object instance for a given key exists.
The weak cache is keyed, while the hard cache simply maintains the presence of an object in the weak cache.

Constructor Summary

Constructors
Constructor Description

ObjectCache(int hardCacheSize)
Construct a keyed-object cache of size hardCacheSize.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`boolean`	`contains(long key)`	Determine if the keyed-object exists in the cache.
`java.lang.Object`	`get(long key)`	Get the object from cache which corresponds to the specified key.
`void`	`put(long key, java.lang.Object obj)`	Add an object to the cache
`void`	`remove(long key)`	Remove the specified keyed object from both hard and weak caches.
`void`	`setHardCacheSize(int size)`	Adjust the hard cache size
`int`	`size()`	Return the hard cache size

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

- Constructor Detail
  - ObjectCache
```
public ObjectCache(int hardCacheSize)
```
    Construct a keyed-object cache of size hardCacheSize.
    
    Parameters:
    
    hardCacheSize - hard cache size.
- Method Detail
  - contains
```
public boolean contains(long key)
```
    Determine if the keyed-object exists in the cache.
    
    Parameters:
    
    key - object key
    
    Returns:
    
    true if object is cached
  - get
```
public java.lang.Object get(long key)
```
    Get the object from cache which corresponds to the specified key.
    
    Parameters:
    
    key - object key
    
    Returns:
    
    cached object
  - size
```
public int size()
```
    Return the hard cache size
    
    Returns:
    
    the hard cache size
  - setHardCacheSize
```
public void setHardCacheSize(int size)
```
    Adjust the hard cache size
    
    Parameters:
    
    size - new hard cache size
  - put
```
public void put(long key,
                java.lang.Object obj)
```
    Add an object to the cache
    
    Parameters:
    
    key - object key
    
    obj - the object
  - remove
```
public void remove(long key)
```
    Remove the specified keyed object from both hard and weak caches. An object should be removed from the cache when it becomes invalid.
    
    Parameters:
    
    key - object key