get Read Method - Java Reflection

Java examples for Reflection:Method

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Description

get Read Method

Demo Code


//package com.java2s;
import java.lang.reflect.Method;

public class Main {

    @SuppressWarnings({ "rawtypes", "unchecked" })
    public static Method getReadMethod(Class clazz, String propertyName) {
        Method readMethod = null;
        String base = capitalize(propertyName);

        // Since there can be multiple setter methods but only one getter
        // method, find the getter method first so that you know what the
        // property type is. For booleans, there can be "is" and "get"
        // methods. If an "is" method exists, this is the official
        // reader method so look for this one first.
        try {/*from  w  w w .  ja  v  a 2  s . c  o m*/
            readMethod = clazz.getMethod("is" + base, (Class[]) null);
        } catch (Exception getterExc) {
            try {
                // no "is" method, so look for a "get" method.
                //if (clazz == null) return null;
                readMethod = clazz.getMethod("get" + base, (Class[]) null);
            } catch (Exception e) {
                // no is and no get, we will return null
            }
        }

        return readMethod;
    }

    private static String capitalize(String s) {
        if (s.length() == 0) {
            return s;
        } else {
            char chars[] = s.toCharArray();
            chars[0] = Character.toUpperCase(chars[0]);
            return String.valueOf(chars);
        }
    }
}

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