org.apache.fop.fo.properties

Class PropertyCache

java.lang.Object

org.apache.fop.fo.properties.PropertyCache

public final class PropertyCache
extends java.lang.Object

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

Constructors

Constructor and Description
PropertyCache(java.lang.Class c) Default constructor.

Method Summary

Methods

Modifier and Type	Method and Description
CommonBorderPaddingBackground.BorderInfo	fetch(CommonBorderPaddingBackground.BorderInfo bi) Checks if the given CommonBorderPaddingBackground.BorderInfo is present in the cache - if so, returns a reference to the cached instance.
CommonBorderPaddingBackground	fetch(CommonBorderPaddingBackground cbpb) Checks if the given CommonBorderPaddingBackground 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.
Marker.MarkerAttribute	fetch(Marker.MarkerAttribute ma) Checks if the given Marker.MarkerAttribute 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.
java.lang.String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

PropertyCache

public PropertyCache(java.lang.Class c)

Default constructor.

Parameters:

c - Runtime type of the objects that will be stored in the cache

Method Detail

fetch

public Property fetch(Property prop)

Checks if the given 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.

Parameters:

prop - the Property instance to check for

Returns:

the cached instance

fetch

public CommonHyphenation fetch(CommonHyphenation chy)

Checks if the given 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.

Parameters:

chy - the CommonHyphenation instance to check for

Returns:

the cached instance

fetch

public CommonFont fetch(CommonFont cf)

Checks if the given 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.

Parameters:

cf - the CommonFont instance to check for

Returns:

the cached instance

fetch

public CommonBorderPaddingBackground fetch(CommonBorderPaddingBackground cbpb)

Checks if the given CommonBorderPaddingBackground 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.

Parameters:

cbpb - the CommonBorderPaddingBackground instance to check for

Returns:

the cached instance

fetch

public CommonBorderPaddingBackground.BorderInfo fetch(CommonBorderPaddingBackground.BorderInfo bi)

Checks if the given CommonBorderPaddingBackground.BorderInfo 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.

Parameters:

bi - the BorderInfo instance to check for

Returns:

the cached instance

fetch

public Marker.MarkerAttribute fetch(Marker.MarkerAttribute ma)

Checks if the given Marker.MarkerAttribute 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.

Parameters:

ma - the MarkerAttribute instance to check for

Returns:

the cached instance

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object