Class MetaClassHelper

Method Details

• accessibleToConstructor

  public static boolean accessibleToConstructor(Class at, Constructor constructor)

• asWrapperArray

  public static Object[] asWrapperArray(Object parameters, Class componentType)

• asPrimitiveArray

  public static Object asPrimitiveArray(List list, Class parameterType)

  Parameters:

  list - the original list

  parameterType - the resulting array type

  Returns:

  the constructed array

• calculateParameterDistance

  public static long calculateParameterDistance(Class[] arguments, ParameterTypes pt)

• capitalize

  public static String capitalize(String property)

  This is the complement to the java.beans.Introspector.decapitalize(String) method. We handle names that begin with an initial lowerCase followed by upperCase specially (which is to make no change). See GROOVY-3211.

  Parameters:

  property - the property name to capitalize

  Returns:

  the name capitalized, except when we don't

• chooseEmptyMethodParams

  public static Object chooseEmptyMethodParams(FastArray methods)

  Parameters:

  methods - the methods to choose from

  Returns:

  the method with 1 parameter which takes the most general type of object (e.g. Object)

• chooseMostGeneralMethodWith1NullParam

  @Deprecated public static Object chooseMostGeneralMethodWith1NullParam(FastArray methods)

  Deprecated.

  Warning: this method does not choose properly if multiple methods with the same distance are encountered

  Parameters:

  methods - the methods to choose from

  Returns:

  the method with 1 parameter which takes the most general type of object (e.g. Object) ignoring primitive types

• containsMatchingMethod

  public static boolean containsMatchingMethod(List list, MetaMethod method)

  Parameters:

  list - a list of MetaMethods

  method - the MetaMethod of interest

  Returns:

  true if a method of the same matching prototype was found in the list

• convertToTypeArray

  public static Class[] convertToTypeArray(Object[] args)

  param instance array to the type array

  Parameters:

  args - the arguments

  Returns:

  the types of the arguments

• makeCommonArray

  public static Object makeCommonArray(Object[] arguments, int offset, Class fallback)

• makeArray

  public static Object makeArray(Object obj, Class secondary, int length)

• createExceptionText

  public static GroovyRuntimeException createExceptionText(String init, MetaMethod method, Object object, Object[] args, Throwable reason, boolean setReason)

• getClassName

  protected static String getClassName(Object object)

• getMethodPointer

  public static Closure getMethodPointer(Object object, String methodName)

  Returns a callable object for the given method name on the object. The object acts like a Closure in that it can be called, like a closure and passed around - though really its a method pointer, not a closure per se.

  Parameters:

  object - the object containing the method

  methodName - the method of interest

  Returns:

  the resulting closure-like method pointer

• isAssignableFrom

  public static boolean isAssignableFrom(Class classToTransformTo, Class classToTransformFrom)

• isGenericSetMethod

  public static boolean isGenericSetMethod(MetaMethod method)

• isSuperclass

  protected static boolean isSuperclass(Class clazz, Class superclass)

• parametersAreCompatible

  public static boolean parametersAreCompatible(Class[] arguments, Class[] parameters)

• logMethodCall

  public static void logMethodCall(Object object, String methodName, Object[] arguments)

• normalizedValue

  protected static String normalizedValue(Object argument)

• shortName

  protected static String shortName(Object object)

• wrap

  public static Class[] wrap(Class[] classes)

• sameClasses

  public static boolean sameClasses(Class[] params, Object[] arguments, boolean weakNullCheck)

• sameClasses

  public static boolean sameClasses(Class[] params, Object[] arguments)

• sameClasses

  public static boolean sameClasses(Class[] params)

• sameClasses

  public static boolean sameClasses(Class[] params, Object arg1)

• sameClasses

  public static boolean sameClasses(Class[] params, Object arg1, Object arg2)

• sameClasses

  public static boolean sameClasses(Class[] params, Object arg1, Object arg2, Object arg3)

• sameClasses

  public static boolean sameClasses(Class[] params, Object arg1, Object arg2, Object arg3, Object arg4)

• sameClass

  public static boolean sameClass(Class[] params, Object arg)

• castArgumentsToClassArray

  public static Class[] castArgumentsToClassArray(Object[] argTypes)

• unwrap

  public static void unwrap(Object[] arguments)

• doSetMetaClass

  public static void doSetMetaClass(Object self, MetaClass mc)

  Sets the meta class for an object, by delegating to the appropriate DefaultGroovyMethods helper method. This method was introduced as a breaking change in 2.0 to solve rare cases of stack overflow. See GROOVY-5285. The method is named doSetMetaClass in order to prevent misusages. Do not use this method directly unless you know what you do.

  Parameters:

  self - the object for which to set the meta class

  mc - the metaclass

• convertPropertyName

  public static String convertPropertyName(String prop)

  Converts a String into a standard property name.

  Parameters:

  prop - the original name

  Returns:

  the converted name