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java.lang.Objectorg.springframework.expression.spel.support.ReflectionHelper
public class ReflectionHelper
Utility methods used by the reflection resolver code to discover the appropriate methods/constructors and fields that should be used in expressions.
| Nested Class Summary | |
|---|---|
static class |
ReflectionHelper.ArgsMatchKind
|
static class |
ReflectionHelper.ArgumentsMatchInfo
An instance of ArgumentsMatchInfo describes what kind of match was achieved between two sets of arguments - the set that a method/constructor is expecting and the set that are being supplied at the point of invocation. |
| Constructor Summary | |
|---|---|
ReflectionHelper()
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| Method Summary | |
|---|---|
static void |
convertAllArguments(TypeConverter converter,
Object[] arguments,
Method method)
Convert a supplied set of arguments into the requested types. |
static int |
getTypeDifferenceWeight(List<TypeDescriptor> paramTypes,
List<TypeDescriptor> argTypes)
Based on MethodInvoker.getTypeDifferenceWeight(Class[], Object[]) but operates on TypeDescriptors. |
static Object[] |
setupArgumentsForVarargsInvocation(Class[] requiredParameterTypes,
Object... args)
Package up the arguments so that they correctly match what is expected in parameterTypes. |
| Methods inherited from class java.lang.Object |
|---|
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
| Constructor Detail |
|---|
public ReflectionHelper()
| Method Detail |
|---|
public static int getTypeDifferenceWeight(List<TypeDescriptor> paramTypes,
List<TypeDescriptor> argTypes)
MethodInvoker.getTypeDifferenceWeight(Class[], Object[]) but operates on TypeDescriptors.
public static void convertAllArguments(TypeConverter converter,
Object[] arguments,
Method method)
throws SpelEvaluationException
converter - the converter to use for type conversionsarguments - the arguments to convert to the requested parameter typesmethod - the target Method
SpelEvaluationException - if there is a problem with conversion
public static Object[] setupArgumentsForVarargsInvocation(Class[] requiredParameterTypes,
Object... args)
requiredParameterTypes - the types of the parameters for the invocationargs - the arguments to be setup ready for the invocation
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