LRUTypeCache

java.lang.Object
- com.fasterxml.classmate.util.ResolvedTypeCache
- - com.fasterxml.classmate.util.LRUTypeCache

All Implemented Interfaces:

java.io.Serializable
```
public class LRUTypeCache
extends ResolvedTypeCache
```
Simple cache used for storing up to specified number of most recently accessed ResolvedType instances. Uses "least-recently used" eviction algorithm (via LinkedHashMap used internally) which optimized retention, but requires full synchronization as read operation also has to modify internal state to maintain LRU aspects. This means that it works well in optimizing access patterns, by keeping most recently accessed types in cache, but may not well work well for highly concurrent cases due to synchronization overhead.
Like all ResolvedTypeCache implementations, access is thread-safe and caller need not (and should not) use additional synchronization.

Since:

1.4

See Also:

ConcurrentTypeCache, Serialized Form

Nested Class Summary

Nested Classes
Modifier and Type Class Description

private static class LRUTypeCache.CacheMap
Simple sub-class to get LRU cache

Field Summary

Fields
Modifier and Type Field Description

protected LRUTypeCache.CacheMap _map

protected int _maxEntries

private static long serialVersionUID

Constructor Summary

Constructors
Constructor Description

LRUTypeCache(int maxEntries)

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`ResolvedType`	`find(ResolvedTypeKey key)`
`void`	`put(ResolvedTypeKey key, ResolvedType type)`
`(package private) java.lang.Object`	`readResolve()`
`int`	`size()`

Methods inherited from class com.fasterxml.classmate.util.ResolvedTypeCache
_addForTest, concurrentCache, key, key, lruCache

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

Field Detail

serialVersionUID
```
private static final long serialVersionUID
```
See Also:

Constant Field Values

_maxEntries
```
protected final int _maxEntries
```

_map

protected final transient LRUTypeCache.CacheMap _map

Constructor Detail

LRUTypeCache

public LRUTypeCache(int maxEntries)

Method Detail

readResolve
```
java.lang.Object readResolve()
```

find

public ResolvedType find(ResolvedTypeKey key)

Specified by:: find in class ResolvedTypeCache

size
```
public int size()
```
Specified by:

size in class ResolvedTypeCache

put

public void put(ResolvedTypeKey key,
                ResolvedType type)

Specified by:: put in class ResolvedTypeCache