Spring Core 6.1.4 · org.springframework.util.ReflectionUtils

Modifier and Type	Class and Description
public static interface	ReflectionUtils.FieldCallback Callback interface invoked on each field in the hierarchy.
public static interface	ReflectionUtils.FieldFilter Callback optionally used to filter fields to be operated on by a field callback.
public static interface	ReflectionUtils.MethodCallback Action to take on each method.
public static interface	ReflectionUtils.MethodFilter Callback optionally used to filter methods to be operated on by a method callback.

Modifier and Type	Field and Description
private static final String	CGLIB_RENAMED_METHOD_PREFIX Naming prefix for CGLIB-renamed methods.
public static final ReflectionUtils.FieldFilter	COPYABLE_FIELDS Pre-built FieldFilter that matches all non-static, non-final fields.
private static final Map<Class<?>, Field[]>	declaredFieldsCache Cache for `Class#getDeclaredFields()`, allowing for fast iteration.
private static final Map<Class<?>, Method[]>	declaredMethodsCache Cache for `Class#getDeclaredMethods()` plus equivalent default methods from Java 8 based interfaces, allowing for fast iteration.
private static final Class<?>[]	EMPTY_CLASS_ARRAY
private static final Field[]	EMPTY_FIELD_ARRAY
private static final Method[]	EMPTY_METHOD_ARRAY
private static final Object[]	EMPTY_OBJECT_ARRAY
public static final ReflectionUtils.MethodFilter	USER_DECLARED_METHODS Pre-built `MethodFilter` that matches all non-bridge non-synthetic methods which are not declared on `java.lang.Object`.

Access	Constructor and Description
public	ReflectionUtils()

Method Summary

Modifier and Type	Method and Description
public static <T> Constructor<T>	Returns: the constructor reference accessibleConstructor(Class<T> the clazz to check clazz, Class<?>... the parameter types of the desired constructor parameterTypes) Obtain an accessible constructor for the given class and parameters.
public static void	clearCache() Clear the internal method/field cache.
public static boolean	Returns: `true` if the exception can be thrown as-is; `false` if it needs to be wrapped declaresException(Method the declaring method method, Class<?> the exception to throw exceptionType) Determine whether the given method explicitly declares the given exception or one of its superclasses, which means that an exception of that type can be propagated as-is within a reflective invocation.
public static void	doWithFields(Class<?> the target class to analyze clazz, ReflectionUtils.FieldCallback the callback to invoke for each field fc) Invoke the given callback on all fields in the target class, going up the class hierarchy to get all declared fields.
public static void	doWithFields(Class<?> the target class to analyze clazz, ReflectionUtils.FieldCallback the callback to invoke for each field fc, ReflectionUtils.FieldFilter the filter that determines the fields to apply the callback to ff) Invoke the given callback on all fields in the target class, going up the class hierarchy to get all declared fields.
public static void	doWithLocalFields(Class<?> the target class to analyze clazz, ReflectionUtils.FieldCallback the callback to invoke for each field fc) Invoke the given callback on all locally declared fields in the given class.
public static void	doWithLocalMethods(Class<?> the class to introspect clazz, ReflectionUtils.MethodCallback the callback to invoke for each method mc) Perform the given callback operation on all matching methods of the given class, as locally declared or equivalent thereof (such as default methods on Java 8 based interfaces that the given class implements).
public static void	doWithMethods(Class<?> the class to introspect clazz, ReflectionUtils.MethodCallback the callback to invoke for each method mc) Perform the given callback operation on all matching methods of the given class and superclasses.
public static void	doWithMethods(Class<?> the class to introspect clazz, ReflectionUtils.MethodCallback the callback to invoke for each method mc, ReflectionUtils.MethodFilter the filter that determines the methods to apply the callback to mf) Perform the given callback operation on all matching methods of the given class and superclasses (or given interface and super-interfaces).
private static List<Method>	findDefaultMethodsOnInterfaces(Class<?> clazz)
public static Field	Returns: the corresponding Field object, or `null` if not found findField(Class<?> the class to introspect clazz, String the name of the field name) Attempt to find a `field` on the supplied `Class` with the supplied `name`.
public static Field	Returns: the corresponding Field object, or `null` if not found findField(Class<?> the class to introspect clazz, String the name of the field (may be `null` if type is specified) name, Class<?> the type of the field (may be `null` if name is specified) type) Attempt to find a `field` on the supplied `Class` with the supplied `name` and/or `type`.
public static Field	Returns: the corresponding Field object, or `null` if not found findFieldIgnoreCase(Class<?> the class to introspect clazz, String the name of the field (with upper/lower case to be ignored) name) Attempt to find a `field` on the supplied `Class` with the supplied `name`.
public static Method	Returns: the Method object, or `null` if none found findMethod(Class<?> the class to introspect clazz, String the name of the method name) Attempt to find a `Method` on the supplied class with the supplied name and no parameters.
public static Method	Returns: the Method object, or `null` if none found findMethod(Class<?> the class to introspect clazz, String the name of the method name, Class<?>... the parameter types of the method (may be `null` to indicate any signature) paramTypes) Attempt to find a `Method` on the supplied class with the supplied name and parameter types.
public static Method[]	getAllDeclaredMethods(Class<?> the class to introspect leafClass) Get all declared methods on the leaf class and all superclasses.
private static Field[]	Returns: the cached array of fields getDeclaredFields(Class<?> the class to introspect clazz) This variant retrieves `Class#getDeclaredFields()` from a local cache in order to avoid defensive array copying.
public static Method[]	Returns: the cached array of methods getDeclaredMethods(Class<?> the class to introspect clazz) Variant of `Class#getDeclaredMethods()` that uses a local cache in order to avoid new Method instances.
private static Method[]	getDeclaredMethods(Class<?> clazz, boolean defensive)
public static Object	Returns: the field's current value getField(Field the field to get field, Object the target object from which to get the field (or `null` for a static field) target) Get the field represented by the supplied `field object` on the specified `target object`.
public static Method[]	getUniqueDeclaredMethods(Class<?> the class to introspect leafClass) Get the unique set of declared methods on the leaf class and all superclasses.
public static Method[]	getUniqueDeclaredMethods(Class<?> the class to introspect leafClass, ReflectionUtils.MethodFilter the filter that determines the methods to take into account mf) Get the unique set of declared methods on the leaf class and all superclasses.
public static void	handleInvocationTargetException(InvocationTargetException the invocation target exception to handle ex) Handle the given invocation target exception.
public static void	handleReflectionException(Exception the reflection exception to handle ex) Handle the given reflection exception.
private static boolean	hasSameParams(Method method, Class<?>[] paramTypes)
public static Object	Returns: the invocation result, if any invokeMethod(Method the method to invoke method, Object the target object to invoke the method on target) Invoke the specified `Method` against the supplied target object with no arguments.
public static Object	Returns: the invocation result, if any invokeMethod(Method the method to invoke method, Object the target object to invoke the method on target, Object... the invocation arguments (may be `null`) args) Invoke the specified `Method` against the supplied target object with the supplied arguments.
public static boolean	isCglibRenamedMethod(Method the method to check renamedMethod) Determine whether the given method is a CGLIB 'renamed' method, following the pattern "CGLIB$methodName$0".
public static boolean	isEqualsMethod(Method method) Determine whether the given method is an "equals" method.
public static boolean	isHashCodeMethod(Method method) Determine whether the given method is a "hashCode" method.
public static boolean	isObjectMethod(Method method) Determine whether the given method is originally declared by `java.lang.Object`.
public static boolean	isPublicStaticFinal(Field the field to check field) Determine whether the given field is a "public static final" constant.
public static boolean	isToStringMethod(Method method) Determine whether the given method is a "toString" method.
public static void	makeAccessible(Constructor<?> the constructor to make accessible ctor) Make the given constructor accessible, explicitly setting it accessible if necessary.
public static void	makeAccessible(Method the method to make accessible method) Make the given method accessible, explicitly setting it accessible if necessary.
public static void	makeAccessible(Field the field to make accessible field) Make the given field accessible, explicitly setting it accessible if necessary.
public static void	rethrowException(Throwable the exception to rethrow throwable) Rethrow the given `exception`, which is presumably the target exception of an `InvocationTargetException`.
public static void	rethrowRuntimeException(Throwable the exception to rethrow ex) Rethrow the given `exception`, which is presumably the target exception of an `InvocationTargetException`.
public static void	setField(Field the field to set field, Object the target object on which to set the field (or `null` for a static field) target, Object the value to set (may be `null`) value) Set the field represented by the supplied field object on the specified target object to the specified `value`.
public static void	shallowCopyFieldState(final Object src, final Object dest) Given the source object and the destination, which must be the same class or a subclass, copy all fields, including inherited fields.

Inherited from java.lang.Object:: clone equals finalize getClass hashCode notify notifyAll toString wait wait wait

public abstract Class ReflectionUtils

Nested and Inner Type Summary

Field Summary

Constructor Summary

Method Summary