Class SetNextRule
- java.lang.Object
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- org.apache.tomcat.util.digester.Rule
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- org.apache.tomcat.util.digester.SetNextRule
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public class SetNextRule extends Rule
Rule implementation that calls a method on the (top-1) (parent) object, passing the top object (child) as an argument. It is commonly used to establish parent-child relationships.
This rule now supports more flexible method matching by default. It is possible that this may break (some) code written against release 1.1.1 or earlier. See
isExactMatch()
for more details.
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Field Summary
Fields Modifier and Type Field Description protected String
methodName
The method name to call on the parent object.protected String
paramType
The Java class name of the parameter type expected by the method.protected boolean
useExactMatch
Should we use exact matching.-
Fields inherited from class org.apache.tomcat.util.digester.Rule
digester, namespaceURI
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Constructor Summary
Constructors Constructor Description SetNextRule(String methodName)
Construct a "set next" rule with the specified method name.SetNextRule(String methodName, String paramType)
Construct a "set next" rule with the specified method name.SetNextRule(Digester digester, String methodName)
Deprecated.The digester instance is now set in theDigester.addRule(java.lang.String, org.apache.tomcat.util.digester.Rule)
method.SetNextRule(Digester digester, String methodName, String paramType)
Deprecated.The digester instance is now set in theDigester.addRule(java.lang.String, org.apache.tomcat.util.digester.Rule)
method.
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description void
end()
Process the end of this element.boolean
isExactMatch()
Is exact matching being used.void
setExactMatch(boolean useExactMatch)
Set whether exact matching is enabled.String
toString()
Render a printable version of this Rule.-
Methods inherited from class org.apache.tomcat.util.digester.Rule
begin, begin, body, body, end, finish, getDigester, getNamespaceURI, setDigester, setNamespaceURI
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Constructor Detail
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SetNextRule
public SetNextRule(Digester digester, String methodName)
Deprecated.The digester instance is now set in theDigester.addRule(java.lang.String, org.apache.tomcat.util.digester.Rule)
method. UseSetNextRule(String methodName)
instead.Construct a "set next" rule with the specified method name. The method's argument type is assumed to be the class of the child object.- Parameters:
digester
- The associated DigestermethodName
- Method name of the parent method to call
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SetNextRule
public SetNextRule(Digester digester, String methodName, String paramType)
Deprecated.The digester instance is now set in theDigester.addRule(java.lang.String, org.apache.tomcat.util.digester.Rule)
method. UseSetNextRule(String methodName,String paramType)
instead.Construct a "set next" rule with the specified method name.- Parameters:
digester
- The associated DigestermethodName
- Method name of the parent method to callparamType
- Java class of the parent method's argument (if you wish to use a primitive type, specify the corresonding Java wrapper class instead, such asjava.lang.Boolean
for aboolean
parameter)
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SetNextRule
public SetNextRule(String methodName)
Construct a "set next" rule with the specified method name. The method's argument type is assumed to be the class of the child object.- Parameters:
methodName
- Method name of the parent method to call
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SetNextRule
public SetNextRule(String methodName, String paramType)
Construct a "set next" rule with the specified method name.- Parameters:
methodName
- Method name of the parent method to callparamType
- Java class of the parent method's argument (if you wish to use a primitive type, specify the corresonding Java wrapper class instead, such asjava.lang.Boolean
for aboolean
parameter)
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Method Detail
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isExactMatch
public boolean isExactMatch()
Is exact matching being used.
This rule uses
org.apache.commons.beanutils.MethodUtils
to introspect the relevent objects so that the right method can be called. Originally,MethodUtils.invokeExactMethod
was used. This matches methods very strictly and so may not find a matching method when one exists. This is still the behaviour when exact matching is enabled.When exact matching is disabled,
MethodUtils.invokeMethod
is used. This method finds more methods but is less precise when there are several methods with correct signatures. So, if you want to choose an exact signature you might need to enable this property.The default setting is to disable exact matches.
- Returns:
- true iff exact matching is enabled
- Since:
- Digester Release 1.1.1
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setExactMatch
public void setExactMatch(boolean useExactMatch)
Set whether exact matching is enabled.
See
isExactMatch()
.- Parameters:
useExactMatch
- should this rule use exact method matching- Since:
- Digester Release 1.1.1
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end
public void end() throws Exception
Process the end of this element.
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