Example usage for java.lang.reflect Method getReturnType

Introduction

In this page you can find the example usage for java.lang.reflect Method getReturnType.

Prototype

public Class<?> getReturnType() 

Source Link

Document

Returns a Class object that represents the formal return type of the method represented by this Method object.

Usage

From source file:com.zenesis.qx.remote.ProxyMethod.java

/**
 * @param name/* w ww. j  av a  2  s .c  o m*/
 * @param returnType
 * @param parameters
 */
public ProxyMethod(Method method) {
    super();
    this.method = method;

    Class returnType = method.getReturnType();
    Class keyType = String.class;
    boolean prefetchResult = false;
    boolean cacheResult = false;
    isMap = Map.class.isAssignableFrom(returnType);
    com.zenesis.qx.remote.annotations.Method anno = method
            .getAnnotation(com.zenesis.qx.remote.annotations.Method.class);

    if (returnType.isArray() || Iterable.class.isAssignableFrom(returnType) || isMap) {
        // How to present on the client - only ArrayList by default is wrapped on the client
        Remote.Array array;
        if (returnType.isArray()) {
            returnType = returnType.getComponentType();
            array = Remote.Array.NATIVE;
        } else {
            returnType = Object.class;
            array = Remote.Array.WRAP;
        }

        // Component type
        if (anno != null) {
            if (anno.array() != Remote.Array.DEFAULT)
                array = anno.array();
            if (anno.arrayType() != Object.class)
                returnType = anno.arrayType();
            if (anno.keyType() != Object.class)
                keyType = anno.keyType();
        }
        this.array = array;
        this.arrayType = returnType;
    } else {
        array = null;
        this.arrayType = null;
    }

    if (anno != null) {
        if (method.getParameterTypes().length == 0) {
            prefetchResult = anno.prefetchResult();
            cacheResult = anno.cacheResult() || prefetchResult;
        }
    }

    this.keyType = keyType;
    this.prefetchResult = prefetchResult;
    this.staticMethod = (method.getModifiers() & Modifier.STATIC) != 0;
    if (staticMethod && cacheResult) {
        log.warn("Cannot cacheResult on static method " + method);
        cacheResult = false;
    }
    this.cacheResult = cacheResult;
}

---

From source file:com.futureplatforms.kirin.internal.attic.ProxyGenerator.java

public <T> T javascriptProxyForResponse(final JSONObject obj, Class<T> baseInterface,
        Class<?>... otherClasses) {
    Class<?>[] allClasses;//from   w w w . j a va 2s .  c o m

    if (otherClasses.length == 0) {
        allClasses = new Class[] { baseInterface };
    } else {
        allClasses = new Class[otherClasses.length + 1];
        allClasses[0] = baseInterface;
        System.arraycopy(otherClasses, 0, allClasses, 1, otherClasses.length);
    }
    InvocationHandler h = new InvocationHandler() {

        @Override
        public Object invoke(Object proxy, Method method, Object[] args) throws Throwable {
            String methodName = method.getName();
            Class<?> returnType = method.getReturnType();
            if (void.class.equals(returnType) && args.length == 1) {
                String propertyName = findSetter(methodName);
                if (propertyName != null) {
                    handleSetter(obj, propertyName, args[0]);
                }
            }

            String propertyName = findGetter(methodName);
            if (propertyName != null) {
                return handleGetter(obj, returnType, propertyName);
            }

            if ("toString".equals(methodName) && String.class.equals(returnType)) {
                return obj.toString();
            }

            return null;
        }

    };
    Object proxy = Proxy.newProxyInstance(baseInterface.getClassLoader(), allClasses, h);
    return baseInterface.cast(proxy);
}

---

From source file:com.netflix.hystrix.contrib.javanica.utils.FallbackMethod.java

public FallbackMethod(Method method, boolean extended) {
    this.method = method;
    this.extended = extended;
    if (method != null) {
        this.executionType = ExecutionType.getExecutionType(method.getReturnType());
    }/*w w w. j  a  v  a 2 s. c om*/
}

---

From source file:com.haulmont.cuba.web.gui.components.table.LinkCellClickListener.java

protected Method findLinkInvokeMethod(Class cls, String methodName) {
    Method exactMethod = MethodUtils.getAccessibleMethod(cls, methodName,
            new Class[] { Entity.class, String.class });
    if (exactMethod != null) {
        return exactMethod;
    }/*from   www  .  j a v  a  2  s .c  om*/

    // search through all methods
    Method[] methods = cls.getMethods();
    for (Method availableMethod : methods) {
        if (availableMethod.getName().equals(methodName)) {
            if (availableMethod.getParameterCount() == 2 && Void.TYPE.equals(availableMethod.getReturnType())) {
                if (Entity.class.isAssignableFrom(availableMethod.getParameterTypes()[0])
                        && String.class == availableMethod.getParameterTypes()[1]) {
                    // get accessible version of method
                    return MethodUtils.getAccessibleMethod(availableMethod);
                }
            }
        }
    }
    return null;
}

---

From source file:edu.cornell.mannlib.vitro.webapp.web.beanswrappers.ReadOnlyBeansWrapper.java

@SuppressWarnings("rawtypes")
@Override/*from w  ww.  jav  a  2  s.  c  o m*/
protected void finetuneMethodAppearance(Class cls, Method method, MethodAppearanceDecision decision) {

    // How to define a setter? This is a weak approximation: a method whose name
    // starts with "set" or returns void.
    if (method.getName().startsWith("set")) {
        decision.setExposeMethodAs(null);

    } else if (method.getReturnType().getName().equals("void")) {
        decision.setExposeMethodAs(null);

    } else {

        Class<?> declaringClass = method.getDeclaringClass();
        if (declaringClass.equals(java.lang.Object.class)) {
            decision.setExposeMethodAs(null);

        } else {
            Package pkg = declaringClass.getPackage();
            if (pkg.getName().equals("java.util")) {
                decision.setExposeMethodAs(null);
            }
        }
    }
}

---

From source file:com.futureplatforms.kirin.internal.attic.ProxyGenerator.java

public <T> T javascriptProxyForRequest(final JSONObject obj, Class<T> baseInterface, Class<?>... otherClasses) {
    Class<?>[] allClasses;/*  www  .  j  a v a  2 s . c o m*/

    if (otherClasses.length == 0) {
        allClasses = new Class[] { baseInterface };
    } else {
        allClasses = new Class[otherClasses.length + 1];
        allClasses[0] = baseInterface;
        System.arraycopy(otherClasses, 0, allClasses, 1, otherClasses.length);
    }
    InvocationHandler h = new InvocationHandler() {
        @Override
        public Object invoke(Object proxy, Method method, Object[] args) throws Throwable {
            String methodName = method.getName();
            Class<?> returnType = method.getReturnType();

            if (obj.has(methodName)) {
                String id = obj.optString("__id");

                if (id != null) {
                    // so assume it's a callback
                    if (void.class.equals(returnType)) {
                        mKirinHelper.jsCallbackObjectMethod(id, methodName, (Object[]) args);
                    } else {
                        return mKirinHelper.jsSyncCallbackObjectMethod(id, returnType, methodName,
                                (Object[]) args);
                    }
                }
                return null;
            }

            String propertyName = findGetter(methodName);
            if (propertyName != null) {
                return handleGetter(obj, returnType, propertyName);
            }

            if ("toString".equals(methodName) && String.class.equals(returnType)) {
                return obj.toString();
            }

            return null;
        }
    };

    Object proxy = Proxy.newProxyInstance(baseInterface.getClassLoader(), allClasses, h);
    return baseInterface.cast(proxy);
}

---

From source file:com.emc.ecs.sync.config.ConfigWrapper.java

public ConfigWrapper(Class<C> targetClass) {
    try {//from   w  ww  .  j av a2 s  .c o  m
        this.targetClass = targetClass;
        if (targetClass.isAnnotationPresent(StorageConfig.class))
            this.uriPrefix = targetClass.getAnnotation(StorageConfig.class).uriPrefix();
        if (targetClass.isAnnotationPresent(FilterConfig.class))
            this.cliName = targetClass.getAnnotation(FilterConfig.class).cliName();
        if (targetClass.isAnnotationPresent(Label.class))
            this.label = targetClass.getAnnotation(Label.class).value();
        if (targetClass.isAnnotationPresent(Documentation.class))
            this.documentation = targetClass.getAnnotation(Documentation.class).value();
        BeanInfo beanInfo = Introspector.getBeanInfo(targetClass);
        for (PropertyDescriptor descriptor : beanInfo.getPropertyDescriptors()) {
            if (descriptor.getReadMethod().isAnnotationPresent(Option.class)) {
                propertyMap.put(descriptor.getName(), new ConfigPropertyWrapper(descriptor));
            }
        }
        for (MethodDescriptor descriptor : beanInfo.getMethodDescriptors()) {
            Method method = descriptor.getMethod();
            if (method.isAnnotationPresent(UriParser.class)) {
                if (method.getReturnType().equals(Void.TYPE) && method.getParameterTypes().length == 1
                        && method.getParameterTypes()[0].equals(String.class)) {
                    uriParser = method;
                } else {
                    log.warn("illegal signature for @UriParser method {}.{}", targetClass.getSimpleName(),
                            method.getName());
                }
            } else if (method.isAnnotationPresent(UriGenerator.class)) {
                if (method.getReturnType().equals(String.class) && method.getParameterTypes().length == 0) {
                    uriGenerator = method;
                } else {
                    log.warn("illegal signature for @UriGenerator method {}.{}", targetClass.getSimpleName(),
                            method.getName());
                }
            }
        }
        if (propertyMap.isEmpty())
            log.info("no @Option annotations found in {}", targetClass.getSimpleName());
    } catch (IntrospectionException e) {
        throw new RuntimeException(e);
    }
}

---

From source file:org.jsonschema2pojo.integration.ArrayIT.java

@Test
public void arraysCanBeMultiDimensional() throws NoSuchMethodException {

    Method getterMethod = classWithArrayProperties.getMethod("getMultiDimensionalArray");

    // assert List
    assertThat(getterMethod.getReturnType().getName(), is(List.class.getName()));
    assertThat(getterMethod.getGenericReturnType(), is(instanceOf(ParameterizedType.class)));

    // assert List<List>
    Type genericType = ((ParameterizedType) getterMethod.getGenericReturnType()).getActualTypeArguments()[0];
    assertThat(genericType, is(instanceOf(ParameterizedType.class)));
    assertThat(((Class<?>) ((ParameterizedType) genericType).getRawType()).getName(), is(List.class.getName()));

    // assert List<List<Object>>
    Type itemsType = ((ParameterizedType) genericType).getActualTypeArguments()[0];
    assertThat(itemsType, is(instanceOf(Class.class)));
    assertThat(((Class<?>) itemsType).getName(), is(Object.class.getName()));

}

---

From source file:ijfx.ui.widgets.PluginInfoPane.java

private Map<String, Object> convert(Method item) {

    return Maps.newHashMap(ImmutableMap.<String, Object>builder().put("name", item.getName())
            .put("inputs", toList(item.getParameters())).put("output", item.getReturnType().getName()).build());
}

---

From source file:com.sulacosoft.bitcoindconnector4j.BitcoindApiHandler.java

private Object deserializeResult(Method method, Object result) {
    if (result instanceof MorphDynaBean) {
        return JSONObject.toBean(JSONObject.fromObject(JSONSerializer.toJSON((MorphDynaBean) result)),
                method.getReturnType());
    } else if (result instanceof List) {
        List<?> incomingList = (List<?>) result;
        if (incomingList.size() == 0)
            return Collections.EMPTY_LIST;

        ParameterizedType type = (ParameterizedType) method.getGenericReturnType(); // method.getGenericType();
        Class<?> clazz = (Class<?>) type.getActualTypeArguments()[0];

        ArrayList<Object> outcomingList = new ArrayList<>();
        if (incomingList.get(0) instanceof MorphDynaBean) {
            for (Object entity : incomingList) {
                Object ent = JSONObject.toBean(JSONObject.fromObject(entity), clazz);
                outcomingList.add(ent);//ww  w  .j ava 2s  . com
            }
        } else {
            outcomingList.addAll(incomingList);
        }
        return outcomingList;
    } else {
        return result;
    }
}

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