package org.codelibs.core.beans;

import java.lang.reflect.Method;
import java.util.Collection;
import java.util.Map;

/**
 * Interface for handling methods.
 *
 * @author koichik
 */
public interface MethodDesc {

    /**
     * Returns the {@link BeanDesc} of the class that owns this method.
     *
     * @return {@link BeanDesc}
     */
    BeanDesc getBeanDesc();

    /**
     * Returns the method.

 *     constructorDesc.newInstance(...); // Create an instance of Foo
 * }
 *
 * for (String methodName : beanDesc.getMethodNames()) {
 *     for (MethodDesc methodDesc : beanDesc.getMethodDescs(methodName)) {
 *         methodDesc.invoke(foo, ...); // Invoke Foo's method
 *     }
 * }
 * </pre>
 *
 * @author higa
 * @see BeanDescFactory
 */
public interface BeanDesc {

    /**

     */
    protected static Object getProperty(final BeanDesc beanDesc, final Annotation annotation, final String name) {
        final MethodDesc methodDesc = beanDesc.getMethodDescNoException(name);
        if (methodDesc == null) {
            return null;
        }
        final Object value = methodDesc.invoke(annotation);
        if (value == null || "".equals(value)) {
            return null;
        }
        return value;
    }

import static org.hamcrest.CoreMatchers.notNullValue;
import static org.hamcrest.CoreMatchers.sameInstance;
import static org.junit.Assert.assertThat;

import org.codelibs.core.beans.BeanDesc;
import org.codelibs.core.beans.MethodDesc;
import org.codelibs.core.exception.MethodNotStaticRuntimeException;
import org.junit.Test;

/**
 * @author koichik
 *
 */
public class MethodDescTest {

    /**
     * @throws Exception
     */

import org.codelibs.core.beans.BeanDesc;
import org.codelibs.core.beans.MethodDesc;
import org.codelibs.core.beans.ParameterizedClassDesc;
import org.codelibs.core.beans.factory.ParameterizedClassDescFactory;
import org.codelibs.core.exception.MethodNotStaticRuntimeException;
import org.codelibs.core.lang.MethodUtil;

/**
 * Implementation class of {@link MethodDesc}.
 *
 * @author koichik
 */