Returns true if the given method object is not a getter/setter/is, and if it is public and non-static. - Java Reflection

Java examples for Reflection:Method

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Description

Returns true if the given method object is not a getter/setter/is, and if it is public and non-static.

Demo Code

/**//  w w w  . ja  v  a2 s  .c  o m
 * A utility class that performs various operations using the Java reflection
 * API.
 * 
 * @author Yanick Duchesne
 *         <dl>
 *         <dt><b>Copyright: </b>
 *         <dd>Copyright &#169; 2002-2003 <a
 *         href="http://www.sapia-oss.org">Sapia Open Source Software </a>. All
 *         Rights Reserved.</dd>
 *         </dt>
 *         <dt><b>License: </b>
 *         <dd>Read the license.txt file of the jar or visit the <a
 *         href="http://www.sapia-oss.org/license.html">license page </a> at the
 *         Sapia OSS web site</dd>
 *         </dt>
 *         </dl>
 */
//package com.java2s;
import java.lang.reflect.Method;
import java.lang.reflect.Modifier;

public class Main {
    /**
     * Returns <code>true</code> if the given method object is not a
     * getter/setter/is, and if it is public and non-static.
     * 
     * @param method
     *          a <code>method</code>.
     * @return <code>true</code> if the given method corresponds to a MBean
     *         operation.
     */
    public static boolean isOperation(Method method) {
        return Modifier.isPublic(method.getModifiers())
                && !Modifier.isStatic(method.getModifiers())
                && !isSetter(method) && !isGetter(method)
                && !isBoolean(method);
    }

    /**
     * Returns <code>true</code> if the given method object corresponds to a
     * setter. The method must start with a "set" prefix and be non-static,
     * public, and take a single parameter.
     * 
     * @param method
     *          a <code>Method</code> object.
     * @return <code>true</code> if the given instance corresponds to a setter.
     */
    public static boolean isSetter(Method method) {
        return method.getName().startsWith("set")
                && Modifier.isPublic(method.getModifiers())
                && !Modifier.isStatic(method.getModifiers())
                && (method.getParameterTypes().length == 1);
    }

    /**
     * Returns <code>true</code> if the given method object corresponds to a
     * getter. The method must start with a "get" prefix and be non-static,
     * public, take no parameter, and have a return type.
     * 
     * @param method
     *          a <code>Method</code> object.
     * @return <code>true</code> if the given instance corresponds to a getter.
     */
    public static boolean isGetter(Method method) {
        return method.getName().startsWith("get")
                && Modifier.isPublic(method.getModifiers())
                && !Modifier.isStatic(method.getModifiers())
                && (method.getParameterTypes().length == 0)
                && (method.getReturnType() != null)
                && !method.getReturnType().equals(void.class);
    }

    /**
     * Returns <code>true</code> if the given method object corresponds to a
     * "is". The method must start with a "is" prefix and be non-static, public,
     * take no parameter, and have a boolean return type.
     * 
     * @param method
     *          a <code>Method</code> object.
     * @return <code>true</code> if the given instance corresponds to a "is".
     */
    public static boolean isBoolean(Method method) {
        return method.getName().startsWith("is")
                && Modifier.isPublic(method.getModifiers())
                && !Modifier.isStatic(method.getModifiers())
                && (method.getParameterTypes().length == 0)
                && (method.getReturnType() != null)
                && !method.getReturnType().equals(void.class);
    }
}

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