Package org.apache.tapestry5.ioc.internal.services

Class MethodSignature

  • public class MethodSignature
extends java.lang.Object
    A representation of a Method, identifying the name, return type, parameter types and exception types. Actual Method objects are tied to a particular class, and don't compare well with other otherwise identical Methods from other classes or interface; MethodSignatures are distinct from classes and compare well. Because the intended purpose is to compare methods from interfaces (which are always public and abstract) we don't bother to actually track the modifiers. In addition, at this time, MethodSignature does not distinguish between instance and static methods.

    • Constructor Summary

      Constructors 
      Constructor Description
      MethodSignature​(java.lang.Class returnType, java.lang.String name, java.lang.Class[] parameterTypes, java.lang.Class[] exceptionTypes)  
      MethodSignature​(java.lang.reflect.Method m)  

    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      boolean equals​(java.lang.Object o)
      Returns true if the other object is an instance of MethodSignature with identical values for return type, name, parameter types and exception types.
      java.lang.Class[] getExceptionTypes()
      Returns the exceptions for this method.
      java.lang.reflect.Method getMethod()
      If this signature was created from a method, return that method.
      java.lang.String getName()  
      java.lang.Class[] getParameterTypes()
      Returns the parameter types for this method.
      java.lang.Class getReturnType()  
      java.lang.String getUniqueId()
      Returns a string consisting of the name of the method and its parameter types.
      int hashCode()  
      boolean isOverridingSignatureOf​(MethodSignature ms)
      Returns true if this signature has the same return type, name and parameters types as the method signature passed in, and this signature's exceptions "trump" (are the same as, or super-implementations of, all exceptions thrown by the other method signature).
      java.lang.String toString()  

      • Methods inherited from class java.lang.Object

        clone, finalize, getClass, notify, notifyAll, wait, wait, wait

    • Constructor Detail

      • MethodSignature

        public MethodSignature​(java.lang.Class returnType,
                       java.lang.String name,
                       java.lang.Class[] parameterTypes,
                       java.lang.Class[] exceptionTypes)

    • Method Detail

      • getExceptionTypes

        public java.lang.Class[] getExceptionTypes()
        Returns the exceptions for this method. Caution: do not modify the returned array. May return null.

      • getName

        public java.lang.String getName()

      • getMethod

        public java.lang.reflect.Method getMethod()
        If this signature was created from a method, return that method.
        Since:
        5.3

      • getParameterTypes

        public java.lang.Class[] getParameterTypes()
        Returns the parameter types for this method. May return null. Caution: do not modify the returned array.

      • hashCode

        public int hashCode()
        Overrides:
        hashCode in class java.lang.Object

      • equals

        public boolean equals​(java.lang.Object o)
        Returns true if the other object is an instance of MethodSignature with identical values for return type, name, parameter types and exception types.
        Overrides:
        equals in class java.lang.Object
        See Also:
        isOverridingSignatureOf(MethodSignature)

      • toString

        public java.lang.String toString()
        Overrides:
        toString in class java.lang.Object

      • getUniqueId

        public java.lang.String getUniqueId()
        Returns a string consisting of the name of the method and its parameter types. This is similar to toString(), but omits the return type and information about thrown exceptions. A unique id is used by MethodIterator to identify overlapping methods (methods with the same name and parameter types but with different thrown exceptions).
        See Also:
        isOverridingSignatureOf(MethodSignature)

      • isOverridingSignatureOf

        public boolean isOverridingSignatureOf​(MethodSignature ms)
        Returns true if this signature has the same return type, name and parameters types as the method signature passed in, and this signature's exceptions "trump" (are the same as, or super-implementations of, all exceptions thrown by the other method signature).