private static class Tile.CachedCallable<V> extends java.lang.Object implements java.util.concurrent.Callable<V>
Modifier and Type | Field and Description |
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private java.util.concurrent.Callable<V> |
callable |
private V |
result |
Constructor and Description |
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CachedCallable(java.util.concurrent.Callable<V> callable)
Wraps callable so it is evaluated only once
|
Modifier and Type | Method and Description |
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V |
call() |
CachedCallable(java.util.concurrent.Callable<V> callable)
callable
- to cache