Package net.i2p.util
Class TryCache<T>
java.lang.Object
net.i2p.util.TryCache<T>
- Type Parameters:
T
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- Direct Known Subclasses:
ByteCache
An object cache which is safe to use by multiple threads without blocking.
- Since:
- 0.9.36
- Author:
- zab
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Nested Class Summary
Modifier and TypeClassDescriptionstatic interface
Something that creates objects of the type cached by this cache -
Field Summary
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Constructor Summary
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Method Summary
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Field Details
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capacity
protected final int capacity -
items
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lock
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_lastUnderflow
protected long _lastUnderflow
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Constructor Details
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TryCache
- Parameters:
factory
- to be used for creating new instancescapacity
- cache up to this many items
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Method Details
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acquire
- Returns:
- a cached or newly created item from this cache
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release
Tries to return this item to the cache but it may fail if the cache has reached capacity or it's lock is held by another thread. -
clear
public void clear()Clears all cached items. This is the only method that blocks until it acquires the lock.
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