Module ojalgo

Package org.ojalgo.type

Class ForgetfulMap.ValueCacheImpl<K,V>

java.lang.Object

org.ojalgo.type.ForgetfulMap.ValueCacheImpl<K,V>

All Implemented Interfaces:

ForgetfulMap.ValueCache<V>

Enclosing class:

ForgetfulMap<K,V>

private static final class ForgetfulMap.ValueCacheImpl<K,V>
extends java.lang.Object
implements ForgetfulMap.ValueCache<V>

A re-implementation of TypeCache backed by a ForgetfulMap. Essentially it's a supplier that most of the time returns a cached value, and only recomputes it periodically.

Field Summary

Fields

Modifier and Type	Field	Description
private ForgetfulMap<K,V>	myCache
private boolean	myDirty
private K	myKey
private java.util.function.Function<? super K,? extends V>	myValueSupplier

Constructor Summary

Constructors

Constructor	Description
ValueCacheImpl(K key, ForgetfulMap<K,V> cache, java.util.function.Function<? super K,? extends V> valueSupplier)

Method Summary

Modifier and Type	Method	Description
void	flushCache()
V	getCachedObject()
boolean	isCacheSet()	Is there currently a value cached for this key?
boolean	isDirty()
void	makeDirty()	Will force re-creation of the value the next time getCachedObject() is called.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

myCache

private final ForgetfulMap<K,V> myCache

myDirty

private volatile boolean myDirty

myKey

private final K myKey

myValueSupplier

private final java.util.function.Function<? super K,? extends V> myValueSupplier

Constructor Detail

ValueCacheImpl

ValueCacheImpl(K key,
               ForgetfulMap<K,V> cache,
               java.util.function.Function<? super K,? extends V> valueSupplier)

Method Detail

flushCache

public final void flushCache()

Specified by:

flushCache in interface ForgetfulMap.ValueCache<K>

getCachedObject

public final V getCachedObject()

Specified by:

getCachedObject in interface ForgetfulMap.ValueCache<K>

isCacheSet

public final boolean isCacheSet()

Is there currently a value cached for this key?

Specified by:

isCacheSet in interface ForgetfulMap.ValueCache<K>

isDirty

public final boolean isDirty()

Specified by:

isDirty in interface ForgetfulMap.ValueCache<K>

Returns:

true if makeDirty() has been called since the last time getCachedObject() was called.

makeDirty

public final void makeDirty()

Will force re-creation of the value the next time getCachedObject() is called. This method does NOT immediately remove or invalidate the value from the underlying cache.

Specified by:

makeDirty in interface ForgetfulMap.ValueCache<K>