Package ca.uhn.fhir.util

Class ReflectionUtil

java.lang.Object

ca.uhn.fhir.util.ReflectionUtil

public class ReflectionUtil
extends Object

Field Summary

Fields

Modifier and Type	Field	Description
static final Class<?>[]	EMPTY_CLASS_ARRAY
static final Object[]	EMPTY_OBJECT_ARRAY

Method Summary

Modifier and Type	Method	Description
static String	describeMethodInSortFriendlyWay(Method theMethod)	Returns a description like startsWith params(java.lang.String, int) returns(boolean).
static List<Method>	getDeclaredMethods(Class<?> theClazz)	Returns all methods declared against theClazz.
static List<Method>	getDeclaredMethods(Class<?> theClazz, boolean theIncludeMethodsFromSuperclasses)	Returns all methods declared against theClazz.
static Class<?>	getGenericCollectionTypeOfField(Field next)
static Class<?>	getGenericCollectionTypeOfFieldWithSecondOrderForList(Field next)	For a field of type List<Enumeration<Foo>>, returns Foo.
static Class<?>	getGenericCollectionTypeOfMethodParameter(Method theMethod, int theParamIndex)
static Class<?>	getGenericCollectionTypeOfMethodReturnType(Method theMethod)
static boolean	isInstantiable(Class<?> theType)
static <T> T	newInstance(Class<T> theType)	Instantiate a class by no-arg constructor, throw ConfigurationException if we fail to do so
static <T> T	newInstance(Class<T> theType, Class<?> theArgumentType, Object theArgument)
static <T> T	newInstance(String theClassName, Class<T> theType, Class<?>[] theArgTypes, Object[] theArgs)
static Object	newInstanceOfFhirServerType(String theType)
static <T> T	newInstanceOrReturnNull(String theClassName, Class<T> theType)
static <T> T	newInstanceOrReturnNull(String theClassName, Class<T> theType, Class<?>[] theArgTypes, Object[] theArgs)
static boolean	typeExists(String theName)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

EMPTY_OBJECT_ARRAY

public static final Object[] EMPTY_OBJECT_ARRAY

EMPTY_CLASS_ARRAY

public static final Class<?>[] EMPTY_CLASS_ARRAY

Method Details

getDeclaredMethods

public static List<Method> getDeclaredMethods(Class<?> theClazz)

Returns all methods declared against theClazz. This method returns a predictable order, which is sorted by method name and then by parameters.

This method does not include superclass methods (see getDeclaredMethods(Class, boolean) if you want to include those.

getDeclaredMethods

public static List<Method> getDeclaredMethods(Class<?> theClazz,
 boolean theIncludeMethodsFromSuperclasses)

Returns all methods declared against theClazz. This method returns a predictable order, which is sorted by method name and then by parameters.

describeMethodInSortFriendlyWay

public static String describeMethodInSortFriendlyWay(Method theMethod)

Returns a description like startsWith params(java.lang.String, int) returns(boolean). The format is chosen in order to provide a predictable and useful sorting order.

getGenericCollectionTypeOfField

public static Class<?> getGenericCollectionTypeOfField(Field next)

getGenericCollectionTypeOfFieldWithSecondOrderForList

public static Class<?> getGenericCollectionTypeOfFieldWithSecondOrderForList(Field next)

For a field of type List<Enumeration<Foo>>, returns Foo.

getGenericCollectionTypeOfMethodParameter

public static Class<?> getGenericCollectionTypeOfMethodParameter(Method theMethod,
 int theParamIndex)

getGenericCollectionTypeOfMethodReturnType

public static Class<?> getGenericCollectionTypeOfMethodReturnType(Method theMethod)

isInstantiable

public static boolean isInstantiable(Class<?> theType)

newInstance

public static <T> T newInstance(Class<T> theType)

Instantiate a class by no-arg constructor, throw ConfigurationException if we fail to do so

newInstance

public static <T> T newInstance(Class<T> theType,
 Class<?> theArgumentType,
 Object theArgument)

newInstanceOfFhirServerType

public static Object newInstanceOfFhirServerType(String theType)

newInstanceOrReturnNull

public static <T> T newInstanceOrReturnNull(String theClassName,
 Class<T> theType)

newInstanceOrReturnNull

public static <T> T newInstanceOrReturnNull(String theClassName,
 Class<T> theType,
 Class<?>[] theArgTypes,
 Object[] theArgs)

newInstance

@Nonnull
public static <T> T newInstance(String theClassName,
 Class<T> theType,
 Class<?>[] theArgTypes,
 Object[] theArgs)

typeExists

public static boolean typeExists(String theName)