Package org.codehaus.groovy.runtime
Class MetaClassHelper
java.lang.Object
org.codehaus.groovy.runtime.MetaClassHelper
public class MetaClassHelper
extends java.lang.Object
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Field Summary
Fields Modifier and Type Field Description static java.lang.Object[]ARRAY_WITH_NULLstatic java.lang.Object[]EMPTY_ARRAYstatic java.lang.Class[]EMPTY_CLASS_ARRAYstatic java.lang.Class[]EMPTY_TYPE_ARRAYprotected static java.util.logging.LoggerLOG -
Constructor Summary
Constructors Constructor Description MetaClassHelper() -
Method Summary
Modifier and Type Method Description static booleanaccessibleToConstructor(java.lang.Class at, java.lang.reflect.Constructor constructor)static java.lang.ObjectasPrimitiveArray(java.util.List list, java.lang.Class parameterType)static java.lang.Object[]asWrapperArray(java.lang.Object parameters, java.lang.Class componentType)static longcalculateParameterDistance(java.lang.Class[] arguments, ParameterTypes pt)static java.lang.Stringcapitalize(java.lang.String property)Deprecated.Use BeanUtils.capitalize insteadstatic java.lang.Class[]castArgumentsToClassArray(java.lang.Object[] argTypes)static java.lang.ObjectchooseEmptyMethodParams(FastArray methods)static java.lang.ObjectchooseMostGeneralMethodWith1NullParam(FastArray methods)Deprecated.static booleancontainsMatchingMethod(java.util.List list, MetaMethod method)static java.lang.StringconvertPropertyName(java.lang.String prop)Converts a String into a standard property name.static java.lang.Class[]convertToTypeArray(java.lang.Object[] args)param instance array to the type arraystatic GroovyRuntimeExceptioncreateExceptionText(java.lang.String init, MetaMethod method, java.lang.Object object, java.lang.Object[] args, java.lang.Throwable reason, boolean setReason)static voiddoSetMetaClass(java.lang.Object self, MetaClass mc)Sets the meta class for an object, by delegating to the appropriateDefaultGroovyMethodshelper method.protected static java.lang.StringgetClassName(java.lang.Object object)static ClosuregetMethodPointer(java.lang.Object object, java.lang.String methodName)Returns a callable object for the given method name on the object.static booleanisAssignableFrom(java.lang.Class classToTransformTo, java.lang.Class classToTransformFrom)static booleanisGenericSetMethod(MetaMethod method)protected static booleanisSuperclass(java.lang.Class clazz, java.lang.Class superclass)static voidlogMethodCall(java.lang.Object object, java.lang.String methodName, java.lang.Object[] arguments)static java.lang.ObjectmakeArray(java.lang.Object obj, java.lang.Class secondary, int length)static java.lang.ObjectmakeCommonArray(java.lang.Object[] arguments, int offset, java.lang.Class fallback)protected static java.lang.StringnormalizedValue(java.lang.Object argument)static booleanparametersAreCompatible(java.lang.Class[] arguments, java.lang.Class[] parameters)static booleansameClass(java.lang.Class[] params, java.lang.Object arg)static booleansameClasses(java.lang.Class[] params)static booleansameClasses(java.lang.Class[] params, java.lang.Object arg1)static booleansameClasses(java.lang.Class[] params, java.lang.Object[] arguments)static booleansameClasses(java.lang.Class[] params, java.lang.Object[] arguments, boolean weakNullCheck)static booleansameClasses(java.lang.Class[] params, java.lang.Object arg1, java.lang.Object arg2)static booleansameClasses(java.lang.Class[] params, java.lang.Object arg1, java.lang.Object arg2, java.lang.Object arg3)static booleansameClasses(java.lang.Class[] params, java.lang.Object arg1, java.lang.Object arg2, java.lang.Object arg3, java.lang.Object arg4)protected static java.lang.StringshortName(java.lang.Object object)static voidunwrap(java.lang.Object[] arguments)static java.lang.Class[]wrap(java.lang.Class[] classes)Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
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Field Details
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EMPTY_ARRAY
public static final java.lang.Object[] EMPTY_ARRAY -
EMPTY_TYPE_ARRAY
public static final java.lang.Class[] EMPTY_TYPE_ARRAY -
ARRAY_WITH_NULL
public static final java.lang.Object[] ARRAY_WITH_NULL -
LOG
protected static final java.util.logging.Logger LOG -
EMPTY_CLASS_ARRAY
public static final java.lang.Class[] EMPTY_CLASS_ARRAY
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Constructor Details
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MetaClassHelper
public MetaClassHelper()
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Method Details
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accessibleToConstructor
public static boolean accessibleToConstructor(java.lang.Class at, java.lang.reflect.Constructor constructor) -
asWrapperArray
public static java.lang.Object[] asWrapperArray(java.lang.Object parameters, java.lang.Class componentType) -
asPrimitiveArray
public static java.lang.Object asPrimitiveArray(java.util.List list, java.lang.Class parameterType)- Parameters:
list- the original listparameterType- the resulting array type- Returns:
- the constructed array
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calculateParameterDistance
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capitalize
@Deprecated public static java.lang.String capitalize(java.lang.String property)Deprecated.Use BeanUtils.capitalize instead -
chooseEmptyMethodParams
- Parameters:
methods- the methods to choose from- Returns:
- the method with 1 parameter which takes the most general type of object (e.g. Object)
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chooseMostGeneralMethodWith1NullParam
@Deprecated public static java.lang.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
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containsMatchingMethod
- Parameters:
list- a list of MetaMethodsmethod- the MetaMethod of interest- Returns:
- true if a method of the same matching prototype was found in the list
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convertToTypeArray
public static java.lang.Class[] convertToTypeArray(java.lang.Object[] args)param instance array to the type array- Parameters:
args- the arguments- Returns:
- the types of the arguments
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makeCommonArray
public static java.lang.Object makeCommonArray(java.lang.Object[] arguments, int offset, java.lang.Class fallback) -
makeArray
public static java.lang.Object makeArray(java.lang.Object obj, java.lang.Class secondary, int length) -
createExceptionText
public static GroovyRuntimeException createExceptionText(java.lang.String init, MetaMethod method, java.lang.Object object, java.lang.Object[] args, java.lang.Throwable reason, boolean setReason) -
getClassName
protected static java.lang.String getClassName(java.lang.Object object) -
getMethodPointer
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 methodmethodName- the method of interest- Returns:
- the resulting closure-like method pointer
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isAssignableFrom
public static boolean isAssignableFrom(java.lang.Class classToTransformTo, java.lang.Class classToTransformFrom) -
isGenericSetMethod
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isSuperclass
protected static boolean isSuperclass(java.lang.Class clazz, java.lang.Class superclass) -
parametersAreCompatible
public static boolean parametersAreCompatible(java.lang.Class[] arguments, java.lang.Class[] parameters) -
logMethodCall
public static void logMethodCall(java.lang.Object object, java.lang.String methodName, java.lang.Object[] arguments) -
normalizedValue
protected static java.lang.String normalizedValue(java.lang.Object argument) -
shortName
protected static java.lang.String shortName(java.lang.Object object) -
wrap
public static java.lang.Class[] wrap(java.lang.Class[] classes) -
sameClasses
public static boolean sameClasses(java.lang.Class[] params, java.lang.Object[] arguments, boolean weakNullCheck) -
sameClasses
public static boolean sameClasses(java.lang.Class[] params, java.lang.Object[] arguments) -
sameClasses
public static boolean sameClasses(java.lang.Class[] params) -
sameClasses
public static boolean sameClasses(java.lang.Class[] params, java.lang.Object arg1) -
sameClasses
public static boolean sameClasses(java.lang.Class[] params, java.lang.Object arg1, java.lang.Object arg2) -
sameClasses
public static boolean sameClasses(java.lang.Class[] params, java.lang.Object arg1, java.lang.Object arg2, java.lang.Object arg3) -
sameClasses
public static boolean sameClasses(java.lang.Class[] params, java.lang.Object arg1, java.lang.Object arg2, java.lang.Object arg3, java.lang.Object arg4) -
sameClass
public static boolean sameClass(java.lang.Class[] params, java.lang.Object arg) -
castArgumentsToClassArray
public static java.lang.Class[] castArgumentsToClassArray(java.lang.Object[] argTypes) -
unwrap
public static void unwrap(java.lang.Object[] arguments) -
doSetMetaClass
Sets the meta class for an object, by delegating to the appropriateDefaultGroovyMethodshelper 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 classmc- the metaclass
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convertPropertyName
public static java.lang.String convertPropertyName(java.lang.String prop)Converts a String into a standard property name.- Parameters:
prop- the original name- Returns:
- the converted name
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