Examples of java.lang.reflect.GenericDeclaration

java.lang.reflect.GenericDeclaration
A common interface for all entities that declare type variables. @since 1.5

  /**
   * Returns the declaring class of {@code typeVariable}, or {@code null} if it was not declared by
   * a class.
   */
  private static Class<?> declaringClassOf(TypeVariable<?> typeVariable) {
    GenericDeclaration genericDeclaration = typeVariable.getGenericDeclaration();
    return genericDeclaration instanceof Class
        ? (Class<?>) genericDeclaration
        : null;
  }

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   * Returns the declaring class of {@code typeVariable}, or {@code null} if it was not declared by
   * a class.
   */
  @SuppressWarnings("rawtypes")
  private static Class<?> declaringClassOf(TypeVariable typeVariable) {
    GenericDeclaration genericDeclaration = typeVariable.getGenericDeclaration();
    return genericDeclaration instanceof Class
        ? (Class<?>) genericDeclaration
        : null;
  }

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  /**
   * Returns the declaring class of {@code typeVariable}, or {@code null} if it was not declared by
   * a class.
   */
  private static Class<?> declaringClassOf(TypeVariable<?> typeVariable) {
    GenericDeclaration genericDeclaration = typeVariable.getGenericDeclaration();
    return genericDeclaration instanceof Class
        ? (Class<?>) genericDeclaration
        : null;
  }

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  /**
   * Returns the declaring class of {@code typeVariable}, or {@code null} if it was not declared by
   * a class.
   */
  private static Class<?> declaringClassOf(TypeVariable<?> typeVariable) {
    GenericDeclaration genericDeclaration = typeVariable.getGenericDeclaration();
    return genericDeclaration instanceof Class
        ? (Class<?>) genericDeclaration
        : null;
  }

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        this.getMethodFromClassTypeInfo = getMethodFromClassTypeInfo == null ? resolved : getMethodFromClassTypeInfo;
    }


    @TestName
    public String testName() throws Exception {
        GenericDeclaration decl = getMethodOrConstructor(ownerType, methodName, paramTypes);


        if (decl instanceof Method) {
            return String.format("%s.%s", ClassUtil.getSimpleClassName(ownerType), ((Method) decl).getName());
        } else {
            return String.format("%s[%d params]", ClassUtil.getSimpleClassName(ownerType),

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     * @since 3.2
     */
    public static String toLongString(final TypeVariable<?> var) {
        Validate.notNull(var, "var is null");
        final StringBuilder buf = new StringBuilder();
        final GenericDeclaration d = ((TypeVariable<?>) var).getGenericDeclaration();
        if (d instanceof Class<?>) {
            Class<?> c = (Class<?>) d;
            while (true) {
                if (c.getEnclosingClass() == null) {
                    buf.insert(0, c.getName());

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                for (int i = 0, n = typeArguments.length; i < n; i++) {
                    final java.lang.reflect.Type typeArg = typeArguments[i];


                    if (typeArg instanceof java.lang.reflect.TypeVariable) {
                        final java.lang.reflect.TypeVariable typeVariable = (java.lang.reflect.TypeVariable) typeArg;
                        final GenericDeclaration genericDeclaration = typeVariable.getGenericDeclaration();
                        final Type<?> existingTypeArgument = findType(typeVariable);


                        if (existingTypeArgument != null) {
                            resolvedTypeArguments[i] = existingTypeArgument;
                            continue;

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        return fieldType;
    }


    public static Type getInheritGenericType(Class<?> clazz, TypeVariable<?> tv) {
        Type type = null;
        GenericDeclaration gd = tv.getGenericDeclaration();
        do {
            type = clazz.getGenericSuperclass();
            if (type == null) {
                return null;
            }
            if (type instanceof ParameterizedType) {
                ParameterizedType ptype = (ParameterizedType) type;
                if (ptype.getRawType() == gd) {
                    TypeVariable<?>[] tvs = gd.getTypeParameters();
                    Type[] types = ptype.getActualTypeArguments();
                    for (int i = 0; i < tvs.length; i++) {
                        if (tvs[i] == tv) return types[i];
                    }
                    return null;

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        return fieldType;
    }
    
    public static Type getInheritGenericType(Class<?> clazz, TypeVariable<?> tv) {
        Type type = null;
        GenericDeclaration gd = tv.getGenericDeclaration();
        do {
            type = clazz.getGenericSuperclass();
            if (type == null) {
                return null;
            }
            if (type instanceof ParameterizedType) {
                ParameterizedType ptype = (ParameterizedType) type;
                if (ptype.getRawType() == gd) {
                    TypeVariable<?>[] tvs = gd.getTypeParameters();
                    Type[] types = ptype.getActualTypeArguments();
                    for (int i = 0; i < tvs.length; i++) {
                        if (tvs[i] == tv)
                            return types[i];
                    }

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    @Override
    public boolean equals(Object o) {
        if (o instanceof TypeVariable) {
            TypeVariable that = (TypeVariable) o;


            GenericDeclaration thatDecl = that.getGenericDeclaration();
            String thatName = that.getName();


            return
                (genericDeclaration == null ?
                 thatDecl == null :

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