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java.lang.Objectorg.apache.fop.fo.properties.PropertyCache
public final class PropertyCache
Dedicated cache, meant for storing canonical instances
of property-related classes.
The public access points are overloaded fetch()
methods
that each correspond to a cached type.
It is designed especially to be used concurrently by multiple threads,
drawing heavily upon the principles behind Java 1.5's
ConcurrentHashMap
.
Constructor Summary | |
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PropertyCache()
Default constructor. |
Method Summary | |
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CommonFont.CachedCommonFont |
fetch(CommonFont.CachedCommonFont ccf)
Checks if the given CachedCommonFont is present in the cache -
if so, returns a reference to the cached instance. |
CommonFont |
fetch(CommonFont cf)
Checks if the given CommonFont is present in the cache -
if so, returns a reference to the cached instance. |
CommonHyphenation |
fetch(CommonHyphenation chy)
Checks if the given CommonHyphenation is present in the cache -
if so, returns a reference to the cached instance. |
Property |
fetch(Property prop)
Checks if the given Property is present in the cache -
if so, returns a reference to the cached instance. |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
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public PropertyCache()
Method Detail |
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public final Property fetch(Property prop)
Property
is present in the cache -
if so, returns a reference to the cached instance.
Otherwise the given object is added to the cache and returned.
prop
- the Property instance to check for
public final CommonHyphenation fetch(CommonHyphenation chy)
CommonHyphenation
is present in the cache -
if so, returns a reference to the cached instance.
Otherwise the given object is added to the cache and returned.
chy
- the CommonHyphenation instance to check for
public final CommonFont.CachedCommonFont fetch(CommonFont.CachedCommonFont ccf)
CachedCommonFont
is present in the cache -
if so, returns a reference to the cached instance.
Otherwise the given object is added to the cache and returned.
ccf
- the CachedCommonFont instance to check for
public final CommonFont fetch(CommonFont cf)
CommonFont
is present in the cache -
if so, returns a reference to the cached instance.
Otherwise the given object is added to the cache and returned.
cf
- the CommonFont instance to check for
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