AbstractQueryResultsCache

java.lang.Object
- org.datanucleus.store.query.cache.AbstractQueryResultsCache

All Implemented Interfaces:

java.io.Serializable, QueryResultsCache

Direct Known Subclasses:

JavaxCacheQueryResultCache
```
public abstract class AbstractQueryResultsCache
extends java.lang.Object
implements QueryResultsCache
```
Root implementation of a query results cache, providing provessing of common persistence properties.

See Also:

Serialized Form

Field Summary

Fields
Modifier and Type	Field	Description
`protected java.lang.String`	`cacheName`	Name of the cache to use.
`protected boolean`	`clearAtClose`	Whether to clear out all objects at close().
`protected long`	`expiryMillis`	Timeout for cache object expiration (milliseconds).
`protected int`	`maxSize`	Maximum size of cache (if supported by the plugin).
`protected NucleusContext`	`nucleusCtx`
`private static long`	`serialVersionUID`

Constructor Summary

Constructors
Constructor Description

AbstractQueryResultsCache(NucleusContext nucleusCtx)

Method Summary
- Methods inherited from class java.lang.Object
  clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
- Methods inherited from interface org.datanucleus.store.query.cache.QueryResultsCache
  close, contains, evict, evict, evict, evictAll, get, isEmpty, pin, pin, put, size, unpin, unpin

- Field Detail
  - serialVersionUID
```
private static final long serialVersionUID
```
    See Also:
    
    Constant Field Values
  - nucleusCtx
```
protected NucleusContext nucleusCtx
```
  - maxSize
```
protected int maxSize
```
    Maximum size of cache (if supported by the plugin).
  - clearAtClose
```
protected boolean clearAtClose
```
    Whether to clear out all objects at close().
  - expiryMillis
```
protected long expiryMillis
```
    Timeout for cache object expiration (milliseconds).
  - cacheName
```
protected java.lang.String cacheName
```
    Name of the cache to use.
- Constructor Detail
  - AbstractQueryResultsCache
```
public AbstractQueryResultsCache(NucleusContext nucleusCtx)
```