Example usage for java.lang Class getSuperclass

Introduction

In this page you can find the example usage for java.lang Class getSuperclass.

Prototype

@HotSpotIntrinsicCandidate
public native Class<? super T> getSuperclass();

Source Link

Document

Returns the Class representing the direct superclass of the entity (class, interface, primitive type or void) represented by this Class .

Usage

From source file:DebugUtilities.java

public static void printClassHierarchy(Class aClass, PrintWriter writer, String prefix) {
    String subPrefix = "-->";

    for (int i = 0;; ++i) {
        writer.println(prefix + " " + subPrefix + " " + aClass.getName());

        aClass = aClass.getSuperclass();

        if (aClass == Object.class)
            break;

        subPrefix = "--" + subPrefix;
    }/*from ww w  . j ava  2  s  .  c  o  m*/
}

From source file:com.sonatype.security.ldap.api.DeepEqualsBuilder.java

private static void reflectionAppend(Object lhs, Object rhs, Class clazz, EqualsBuilder builder,
        boolean useTransients, String[] excludeFields) {
    while (clazz.getSuperclass() != null) {

        Field[] fields = clazz.getDeclaredFields();
        List excludedFieldList = excludeFields != null ? Arrays.asList(excludeFields) : Collections.EMPTY_LIST;
        AccessibleObject.setAccessible(fields, true);
        for (int i = 0; i < fields.length && builder.isEquals(); i++) {
            Field f = fields[i];/* w  ww .  j  av  a 2  s.  c  o m*/
            if (!excludedFieldList.contains(f.getName()) && (f.getName().indexOf('$') == -1)
                    && (useTransients || !Modifier.isTransient(f.getModifiers()))
                    && (!Modifier.isStatic(f.getModifiers()))) {
                try {
                    Object lhsChild = f.get(lhs);
                    Object rhsChild = f.get(rhs);
                    Class testClass = getTestClass(lhsChild, rhsChild);
                    boolean hasEqualsMethod = classHasEqualsMethod(testClass);

                    if (testClass != null && !hasEqualsMethod) {
                        reflectionAppend(lhsChild, rhsChild, testClass, builder, useTransients, excludeFields);
                    } else {
                        builder.append(lhsChild, rhsChild);
                    }
                } catch (IllegalAccessException e) {
                    // this can't happen. Would get a Security exception instead
                    // throw a runtime exception in case the impossible happens.
                    throw new InternalError("Unexpected IllegalAccessException");
                }
            }
        }

        // now for the parent
        clazz = clazz.getSuperclass();
        reflectionAppend(lhs, rhs, clazz, builder, useTransients, excludeFields);
    }
}

From source file:Main.java

/**
 * @param clz class name/*from   www  .j a  va  2s.c  o m*/
 * @param fieldName field name
 * @return true if the field is in the class, else false
 */
public static boolean existsField(Class clz, String fieldName) {
    if (null != clz) {
        try {
            return clz.getDeclaredField(fieldName) != null;
        } catch (Exception e) {
        }
        if (clz != Object.class) {
            return existsField(clz.getSuperclass(), fieldName);
        }
    }
    return false;
}

From source file:com.mmj.app.common.file.ExcelUtils.java

public static Field[] getAllFields(List<Field> fields, Class<?> type) {
    for (Field field : type.getDeclaredFields()) {
        fields.add(field);//w  w w.ja  v a2s.  co  m
    }
    if (type.getSuperclass() != null) {
        fields.addAll(Arrays.asList(getAllFields(fields, type.getSuperclass())));
    }
    return fields.toArray(new Field[fields.size()]);
}

From source file:Main.java

/**
 * Returns all fields declared in the class passed as argument or in its super classes.
 *///from   w w  w  .  j a va 2s  . c o  m
public static List<Field> getAllDeclaredField(Class<?> clazz, boolean includeSuperClass) {
    final List<Field> result = new LinkedList<Field>();
    for (final Field field : clazz.getDeclaredFields()) {
        result.add(field);
    }
    final Class<?> superClass = clazz.getSuperclass();
    if (superClass != null && includeSuperClass) {
        result.addAll(getAllDeclaredField(superClass, true));
    }
    return result;
}

From source file:Main.java

public static List<Field> getAllFieldsOfType(List<Field> fields, Class<?> type, Class<?> fieldType) {
    for (Field field : type.getDeclaredFields()) {
        if (fieldType == null || fieldType.isAssignableFrom(field.getType())) {
            fields.add(field);//from  w w  w  .  j  a va 2  s . c  om
        }
    }

    if (type.getSuperclass() != null) {
        fields = getAllFieldsOfType(fields, type.getSuperclass(), fieldType);
    }

    return fields;
}

From source file:Main.java

static private String getElementName(Class<?> clazz) {

    while (clazz != null) {
        XmlRootElement rootElement = clazz.getAnnotation(XmlRootElement.class);

        if (rootElement != null) {
            return rootElement.name();
        }/*from w w w .j a v a2 s  . c  om*/

        clazz = clazz.getSuperclass();
    }

    throw new RuntimeException();
}

From source file:io.pivotal.spring.xd.jdbcgpfdist.TestUtils.java

public static void setField(String name, Object target, Object value) throws Exception {
    Field field = null;/* ww  w . j a v  a  2  s . c om*/
    Class<?> clazz = target.getClass();
    do {
        try {
            field = clazz.getDeclaredField(name);
        } catch (Exception ex) {
        }

        clazz = clazz.getSuperclass();
    } while (field == null && !clazz.equals(Object.class));

    if (field == null)
        throw new IllegalArgumentException(
                "Cannot find field '" + name + "' in the class hierarchy of " + target.getClass());
    field.setAccessible(true);
    field.set(target, value);
}

From source file:Main.java

public static ParameterizedType resolveParameterizedType(Type t, Class<?> baseClass) {
    Class<?> raw = getRawType(t);

    if (t instanceof ParameterizedType && baseClass.isAssignableFrom(raw)) {
        return (ParameterizedType) t;
    }/*from   w ww.  ja v a 2  s  .  c o m*/

    ParameterizedType pt = null;
    if (raw.getSuperclass() != null && raw.getSuperclass() != Object.class) {
        pt = resolveParameterizedType(raw.getGenericSuperclass(), baseClass);
        if (pt != null)
            return pt;
    }
    if (!raw.isInterface()) {
        for (Type ifs : raw.getGenericInterfaces()) {
            pt = resolveParameterizedType(ifs, baseClass);
            if (pt != null)
                return pt;
        }
    }
    return null;
}

From source file:io.pivotal.spring.xd.jdbcgpfdist.TestUtils.java

@SuppressWarnings("unchecked")
public static <T> T readField(String name, Object target) throws Exception {
    Field field = null;/*w  w  w. j  av a 2 s  . co m*/
    Class<?> clazz = target.getClass();
    do {
        try {
            field = clazz.getDeclaredField(name);
        } catch (Exception ex) {
        }

        clazz = clazz.getSuperclass();
    } while (field == null && !clazz.equals(Object.class));

    if (field == null)
        throw new IllegalArgumentException(
                "Cannot find field '" + name + "' in the class hierarchy of " + target.getClass());
    field.setAccessible(true);
    return (T) field.get(target);
}