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java.lang.Objectnet.sf.jasperreports.engine.util.JRSingletonCache
public class JRSingletonCache
Utility to use as a soft cache of singleton instances.
| Constructor Summary | |
|---|---|
JRSingletonCache(java.lang.Class itf)
Creates a cache of singleton instances. |
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| Method Summary | |
|---|---|
protected java.lang.Object |
createInstance(java.lang.String className)
|
java.lang.Object |
getCachedInstance(java.lang.String className)
Returns the singleton instance corresponding to a class. |
protected java.util.Map |
getContextInstanceCache()
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protected java.lang.Object |
getContextKey()
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| Methods inherited from class java.lang.Object |
|---|
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
| Constructor Detail |
|---|
public JRSingletonCache(java.lang.Class itf)
itf - a interface or class that should be implemented by all classes cached by this object| Method Detail |
|---|
public java.lang.Object getCachedInstance(java.lang.String className)
throws JRException
The instance is first searched into the cache and created if not found.
The class is expected to have a no-argument constructor.
className -
JRException
protected java.lang.Object createInstance(java.lang.String className)
throws JRException
JRExceptionprotected java.util.Map getContextInstanceCache()
protected java.lang.Object getContextKey()
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