Example usage for java.lang.reflect Method getReturnType

List of usage examples for java.lang.reflect Method getReturnType

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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:airlift.util.AirliftUtil.java

/**
 * Gets the attribute type./*from ww  w  . ja  v  a2s.  c  o m*/
 *
 * @param _object the _object
 * @param _attributeName the _attribute name
 * @return the attribute type
 */
public static String getAttributeType(Object _object, String _attributeName) {
    try {
        String getter = "get" + upperTheFirstCharacter(_attributeName);
        java.lang.reflect.Method method = _object.getClass().getMethod(getter);

        return method.getReturnType().getName();
    } catch (Throwable t) {

        throw new RuntimeException(t);
    }
}

From source file:com.swingtech.commons.util.ClassUtil.java

public static String getMethodDeclarationString(final Method method) {
    final StringBuffer retStringBuff = new StringBuffer();

    retStringBuff.append(ClassUtil.getClassNameFromFullPath(method.getReturnType()));
    retStringBuff.append(" ");
    retStringBuff.append(ClassUtil.getClassNameFromFullPath(method.getDeclaringClass()));
    retStringBuff.append(".");
    retStringBuff.append(method.getName());
    retStringBuff.append("(");

    if (!Utility.isNullOrEmpty(method.getParameterTypes())) {
        Class c = null;// w  ww .  j  a v  a  2 s. c o  m
        for (int index = 0; index < method.getParameterTypes().length; index++) {
            c = method.getParameterTypes()[0];
            if (index > 1) {
                retStringBuff.append(", ");
            }
            retStringBuff.append(ClassUtil.getClassNameFromFullPath(c));
            retStringBuff.append(" arg" + index);
        }
    }

    retStringBuff.append(")");

    return retStringBuff.toString();
}

From source file:com.snaplogic.snaps.firstdata.Create.java

static boolean isSetter(Method method) {
    return Modifier.isPublic(method.getModifiers()) && method.getReturnType().equals(void.class)
            && method.getParameterTypes().length == 1 && method.getName().matches(REGEX_SET);
}

From source file:com.doitnext.jsonschema.generator.SchemaGen.java

private static boolean handleProperties(Class<?> classz, StringBuilder sb, Map<String, String> declarations,
        String uriPrefix) {/*from  www  . ja v  a  2s.  co  m*/
    boolean result = false;
    String prepend = "";
    Set<String> processedFields = new HashSet<String>();
    sb.append("{");
    for (Field field : classz.getFields()) {
        JsonSchemaProperty propertyDecl = field.getAnnotation(JsonSchemaProperty.class);
        if (propertyDecl != null) {
            Class<?> propClassz = field.getType();
            StringBuilder sb2 = new StringBuilder();
            boolean inline = true;
            sb2.append("{");
            if (!handleSimpleType(propClassz, sb2, propertyDecl, declarations, uriPrefix)) {
                if (!handleArrayType(propClassz, sb2, propertyDecl, declarations, uriPrefix)) {
                    inline = false;
                }
            }
            sb2.append("}");
            if (inline) {
                sb.append(prepend);
                sb.append("\"");
                sb.append(propertyDecl.name());
                sb.append("\":");
                sb.append(sb2.toString());
                prepend = ", ";
            } else {
                String id = null;
                JsonSchemaClass jsc = propClassz.getAnnotation(JsonSchemaClass.class);
                if (jsc != null)
                    id = jsc.id();
                else
                    id = propClassz.getName();
                declarations.put(id, sb2.toString());

                sb.append(prepend);
                sb.append("\"");
                sb.append(propertyDecl.name());
                sb.append("\":{\"$ref\":\"");
                if (!StringUtils.isEmpty(uriPrefix))
                    sb.append(uriPrefix);
                sb.append(id);
                sb.append("\"}");
                prepend = ", ";
            }
            processedFields.add(propertyDecl.name());
        }
    }
    for (Method method : classz.getMethods()) {
        JsonSchemaProperty propertyDecl = method.getAnnotation(JsonSchemaProperty.class);
        if (propertyDecl != null && !processedFields.contains(propertyDecl.name())) {
            Class<?> propClassz = method.getReturnType();
            StringBuilder sb2 = new StringBuilder();
            boolean inline = true;
            sb2.append("{");
            if (!handleSimpleType(propClassz, sb2, propertyDecl, declarations, uriPrefix)) {
                if (!handleArrayType(propClassz, sb2, propertyDecl, declarations, uriPrefix)) {
                    inline = false;
                }
            }
            sb2.append("}");
            if (inline) {
                sb.append(prepend);
                sb.append("\"");
                sb.append(propertyDecl.name());
                sb.append("\":");
                sb.append(sb2.toString());
                prepend = ", ";
            } else {
                String id = null;
                JsonSchemaClass jsc = propClassz.getAnnotation(JsonSchemaClass.class);
                if (jsc != null)
                    id = jsc.id();
                else
                    id = propClassz.getName();
                declarations.put(id, sb2.toString());

                sb.append(prepend);
                sb.append("\"");
                sb.append(propertyDecl.name());
                sb.append("\":{\"$ref\":\"");
                if (!StringUtils.isEmpty(uriPrefix))
                    sb.append(uriPrefix);
                sb.append(id);
                sb.append("\"}");
                prepend = ", ";
            }
            processedFields.add(propertyDecl.name());
        }
    }
    sb.append("}");
    return result;
}

From source file:com.lucidtechnics.blackboard.TargetConstructor.java

private final static List findMutatorMethods(Class _class) {
    List methodList = new ArrayList();

    Enhancer.getMethods(_class, null, methodList);

    Predicate mutatorPredicate = new Predicate() {
        public boolean evaluate(Object _object) {
            Method method = (Method) _object;

            boolean startsWithSet = (method.getName().startsWith("set") == true);
            boolean returnTypeIsVoid = ("void".equals(method.getReturnType().getName()) == true);
            boolean parameterTypeCountIsOne = (method.getParameterTypes().length == 1);
            boolean isPublic = (Modifier.isPublic(method.getModifiers()) == true);

            return startsWithSet && returnTypeIsVoid && parameterTypeCountIsOne && isPublic;
        }/*  w  w  w.  ja v  a  2s.c om*/
    };

    CollectionUtils.filter(methodList, mutatorPredicate);

    return methodList;
}

From source file:com.lucidtechnics.blackboard.TargetConstructor.java

private final static List findOtherPublicMethods(Class _class) {
    List methodList = new ArrayList();

    Enhancer.getMethods(_class, null, methodList);

    Predicate mutatorPredicate = new Predicate() {
        public boolean evaluate(Object _object) {
            Method method = (Method) _object;

            boolean startsWithSet = (method.getName().startsWith("set") == true);
            boolean returnTypeIsVoid = ("void".equals(method.getReturnType().getName()) == true);
            boolean parameterTypeCountIsOne = (method.getParameterTypes().length == 1);
            boolean isPublic = (Modifier.isPublic(method.getModifiers()) == true);

            return ((startsWithSet && returnTypeIsVoid && parameterTypeCountIsOne) == false) && isPublic;
        }/*from  w  w w  .j  ava2  s . c  om*/
    };

    CollectionUtils.filter(methodList, mutatorPredicate);

    return methodList;
}

From source file:com.p5solutions.mapping.EntityMapper.java

/**
 * Does the class type have any of the following annotations {@link MapClass} or {@link MapClasses}
 * //from w  ww  .ja v  a 2s.  c o m
 * @param clazz
 *          the clazz to search against
 * 
 * @return <code>true</code> , if successfully found annotations otherwise <code>false</code>
 */
@SuppressWarnings("unchecked")
protected static final boolean mappable(Method method) {

    // get the return value of the method.
    Class<?> clazz = method.getReturnType();

    // if the method has @MapExpand or the return type of the Method has
    // @MapClass or @MapClasses, then the object is expandable or walkable
    return ReflectionUtility.hasAnyAnnotation(method, MapExpand.class)
            || ReflectionUtility.hasAnyAnnotation(clazz, MapClass.class, MapClasses.class);
}

From source file:com.google.gwtjsonrpc.server.JsonServlet.java

private static Map<String, MethodHandle> methods(final RemoteJsonService impl) {
    final Class<? extends RemoteJsonService> d = findInterface(impl.getClass());
    if (d == null) {
        return Collections.<String, MethodHandle>emptyMap();
    }/*www  .  j  a va 2s .c om*/

    final Map<String, MethodHandle> r = new HashMap<String, MethodHandle>();
    for (final Method m : d.getMethods()) {
        if (!Modifier.isPublic(m.getModifiers())) {
            continue;
        }

        if (m.getReturnType() != Void.TYPE) {
            continue;
        }

        final Class<?>[] params = m.getParameterTypes();
        if (params.length < 1) {
            continue;
        }

        if (!params[params.length - 1].isAssignableFrom(AsyncCallback.class)) {
            continue;
        }

        final MethodHandle h = new MethodHandle(impl, m);
        r.put(h.getName(), h);
    }
    return Collections.unmodifiableMap(r);
}

From source file:io.stallion.reflection.PropertyUtils.java

private static Class getPropertyType(Object target, String propertyName) {
    String getterName = "get" + propertyName.substring(0, 1).toUpperCase() + propertyName.substring(1);
    String getterIsName = "is" + propertyName.substring(0, 1).toUpperCase() + propertyName.substring(1);
    Method[] methods = target.getClass().getMethods();
    for (int i = 0; i < methods.length; i++) {
        Method method = methods[i];
        if ((method.getName().equals(getterName) || method.getName().equals(getterIsName))
                && !method.getReturnType().equals(void.class) && method.getParameterTypes().length == 0) {
            return method.getReturnType();
        }//w  w w.j  ava 2s  .  c  o  m
    }
    throw new PropertyException(
            "no property '" + propertyName + "' in class '" + target.getClass().getName() + "'");
}

From source file:io.stallion.reflection.PropertyUtils.java

public static Method getGetter(Object target, String propertyName) {
    String cacheKey = "getGetter" + "|" + target.getClass().getCanonicalName() + "|" + propertyName;
    if (target instanceof BaseJavascriptModel) {
        cacheKey = "getGetter" + "|jsModel" + ((BaseJavascriptModel) target).getBucketName() + "|"
                + propertyName;/*from  ww w.j av a2  s .  co  m*/
    }
    if (lookupCache.containsKey(cacheKey)) {
        return (Method) lookupCache.get(cacheKey);
    }
    String getterName = "get" + propertyName.substring(0, 1).toUpperCase() + propertyName.substring(1);
    String getterIsName = "is" + propertyName.substring(0, 1).toUpperCase() + propertyName.substring(1);
    Method[] methods = target.getClass().getMethods();
    for (int i = 0; i < methods.length; i++) {
        Method method = methods[i];
        if ((method.getName().equals(getterName) || method.getName().equals(getterIsName))
                && !method.getReturnType().equals(void.class) && method.getParameterTypes().length == 0) {
            lookupCache.put(cacheKey, method);
            return method;
        }
    }
    lookupCache.put(cacheKey, null);
    throw new PropertyException(
            "no readable property '" + propertyName + "' in class '" + target.getClass().getName() + "'");
}