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java.lang.Objectorg.apache.commons.digester3.plugins.RuleFinder
org.apache.commons.digester3.plugins.strategies.FinderFromDfltClass
public class FinderFromDfltClass
A rule-finding algorithm which looks for a method with a specific name on a class whose name is derived from the plugin class name.
| Constructor Summary | |
|---|---|
FinderFromDfltClass()
See findLoader(org.apache.commons.digester3.Digester, java.lang.Class>, java.util.Properties). |
|
FinderFromDfltClass(String rulesClassSuffix,
String methodName)
Create a rule-finder which invokes a method on a class whenever dynamic rules for a plugin need to be loaded. |
|
| Method Summary | |
|---|---|
RuleLoader |
findLoader(Digester digester,
Class<?> pluginClass,
Properties p)
If there exists a class whose name is the plugin class name + the suffix specified to the constructor, then load that class, locate the appropriate rules-adding method on that class, and return an object encapsulating that info. |
| Methods inherited from class java.lang.Object |
|---|
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
| Constructor Detail |
|---|
public FinderFromDfltClass()
findLoader(org.apache.commons.digester3.Digester, java.lang.Class>, java.util.Properties).
public FinderFromDfltClass(String rulesClassSuffix,
String methodName)
rulesClassSuffix - must be non-null.methodName - may be null.| Method Detail |
|---|
public RuleLoader findLoader(Digester digester,
Class<?> pluginClass,
Properties p)
throws PluginException
If there is no such class, then just return null.
The returned object (when non-null) will invoke the target method on the selected class whenever its addRules
method is invoked. The target method is expected to have the following prototype:
public static void xxxxx(Digester d, String patternPrefix);
findLoader in class RuleFinderdigester - The digester instance where locating plugin classespluginClass - The plugin Java classp - The properties object that holds any xml attributes the user may have specified on the plugin
declaration in order to indicate how to locate the plugin rules.
PluginException - if the algorithm finds a source of rules, but there is something invalid
about that source.
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