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java.lang.Objectcom.restfb.util.ReflectionUtils
public final class ReflectionUtils
A collection of reflection-related utility methods.
Nested Class Summary | |
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static class |
ReflectionUtils.FieldWithAnnotation<T extends Annotation>
A field/annotation pair. |
Method Summary | ||
---|---|---|
static boolean |
equals(Object object1,
Object object2)
Reflection-based implementation of Object.equals(Object) . |
|
static
|
findFieldsWithAnnotation(Class<?> type,
Class<T> annotationType)
Finds fields on the given type and all of its superclasses
annotated with annotations of type annotationType . |
|
static List<Method> |
getAccessors(Class<?> clazz)
Gets all accessor methods for the given clazz . |
|
static Class<?> |
getFirstParameterizedTypeArgument(Field field)
For a given field , get its first parameterized type argument. |
|
static int |
hashCode(Object object)
Reflection-based implementation of Object.hashCode() . |
|
static boolean |
isPrimitive(Object object)
Is the given object a primitive type or wrapper for a primitive
type? |
|
static String |
toString(Object object)
Reflection-based implementation of Object.toString() . |
Methods inherited from class java.lang.Object |
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equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Method Detail |
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public static boolean isPrimitive(Object object)
object
a primitive type or wrapper for a primitive
type?
object
- The object to check for primitive-ness.
true
if object
is a primitive type or wrapper for a
primitive type, false
otherwise.public static <T extends Annotation> List<ReflectionUtils.FieldWithAnnotation<T>> findFieldsWithAnnotation(Class<?> type, Class<T> annotationType)
type
and all of its superclasses
annotated with annotations of type annotationType
.
T
- The annotation type.type
- The target type token.annotationType
- The annotation type token.
public static Class<?> getFirstParameterizedTypeArgument(Field field)
field
, get its first parameterized type argument.
For example, a field of type List<Long>
would have a first type
argument of Long.class
.
If the field has no type arguments, null
is returned.
field
- The field to check.
null
if
none exists.public static List<Method> getAccessors(Class<?> clazz)
clazz
.
clazz
- The class for which accessors are extracted.
clazz
.public static String toString(Object object)
Object.toString()
.
object
- The object to convert to a string representation.
object
.
IllegalStateException
- If an error occurs while performing reflection operations.public static int hashCode(Object object)
Object.hashCode()
.
object
- The object to hash.
object
.
IllegalStateException
- If an error occurs while performing reflection operations.public static boolean equals(Object object1, Object object2)
Object.equals(Object)
.
object1
- One object to compare.object2
- Another object to compare.
true
if the objects are equal, false
otherwise.
IllegalStateException
- If an error occurs while performing reflection operations.
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