Package org.apache.catalina.util
Class Introspection
java.lang.Object
org.apache.catalina.util.Introspection
Provides introspection utilities that either require knowledge of Tomcat
internals or are solely used by Tomcat internals.
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Constructor Summary
Constructors -
Method Summary
Modifier and TypeMethodDescriptionstatic Class<?> convertPrimitiveType(Class<?> clazz) Converts the primitive type to its corresponding wrapper.static Field[]getDeclaredFields(Class<?> clazz) Obtain the declared fields for a class taking account of any security manager that may be configured.static Method[]getDeclaredMethods(Class<?> clazz) Obtain the declared methods for a class taking account of any security manager that may be configured.static StringgetPropertyName(Method setter) Extract the Java Bean property name from the setter name.static booleanisValidLifecycleCallback(Method method) Determines if a method is a valid lifecycle callback method.static booleanisValidSetter(Method method) Determines if a method has a valid name and signature for a Java Bean setter.static Class<?> Attempt to load a class using the given Container's class loader.
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Constructor Details
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Introspection
public Introspection()
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Method Details
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getPropertyName
Extract the Java Bean property name from the setter name. Note: This method assumes that the method name has already been checked for correctness.- Parameters:
setter- The setter method- Returns:
- the bean property name
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isValidSetter
Determines if a method has a valid name and signature for a Java Bean setter.- Parameters:
method- The method to test- Returns:
trueif the method does have a valid name and signature, elsefalse
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isValidLifecycleCallback
Determines if a method is a valid lifecycle callback method.- Parameters:
method- The method to test- Returns:
trueif the method is a valid lifecycle callback method, elsefalse
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getDeclaredFields
Obtain the declared fields for a class taking account of any security manager that may be configured.- Parameters:
clazz- The class to introspect- Returns:
- the class fields as an array
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getDeclaredMethods
Obtain the declared methods for a class taking account of any security manager that may be configured.- Parameters:
clazz- The class to introspect- Returns:
- the class methods as an array
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loadClass
Attempt to load a class using the given Container's class loader. If the class cannot be loaded, a debug level log message will be written to the Container's log and null will be returned.- Parameters:
context- The class loader of this context will be used to attempt to load the classclassName- The class name- Returns:
- the loaded class or
nullif loading failed
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convertPrimitiveType
Converts the primitive type to its corresponding wrapper.- Parameters:
clazz- Class that will be evaluated- Returns:
- if the parameter is a primitive type returns its wrapper; otherwise returns the same class
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