Package io.microsphere.annotation.processor.util

Class ExecutableElementComparator

java.lang.Object

io.microsphere.annotation.processor.util.ExecutableElementComparator

All Implemented Interfaces:

java.util.Comparator<javax.lang.model.element.ExecutableElement>

public class ExecutableElementComparator
extends java.lang.Object
implements java.util.Comparator<javax.lang.model.element.ExecutableElement>

The Comparator class for ExecutableElement, the comparison rule :

1. Comparing to two element names lexicographically. If equals, go to step 2
2. Comparing to the count of two parameters. If equals, go to step 3
3. Comparing to the type names of parameters lexicographically

Example Usage

 class Example {
     void methodA() {}
     void methodB() {}
     void methodB(String param1) {}
     void methodB(String param1, int param2) {}
 }
 

When comparing methods:

• methodA vs methodB: the names are compared lexicographically.
• methodB() vs methodB(String): the number of parameters is compared.
• methodB(String) vs methodB(String, int): the parameter type names are compared lexicographically.

Since:

1.0.0

Author:

Mercy

Field Summary

Fields

Modifier and Type	Field	Description
static ExecutableElementComparator	INSTANCE	The singleton instance

Method Summary

Modifier and Type	Method	Description
int	compare(javax.lang.model.element.ExecutableElement e1, javax.lang.model.element.ExecutableElement e2)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface java.util.Comparator

equals, reversed, thenComparing, thenComparing, thenComparing, thenComparingDouble, thenComparingInt, thenComparingLong

Field Detail

INSTANCE

public static final ExecutableElementComparator INSTANCE

The singleton instance

Method Detail

compare

public int compare(javax.lang.model.element.ExecutableElement e1,
                   javax.lang.model.element.ExecutableElement e2)

Specified by:

compare in interface java.util.Comparator<javax.lang.model.element.ExecutableElement>