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java.lang.Objectcom.google.common.primitives.Primitives
public final class Primitives
Contains static utility methods pertaining to primitive types and their corresponding wrapper types.
| Method Summary | ||
|---|---|---|
static Set<Class<?>> |
allPrimitiveTypes()
Returns an immutable set of all nine primitive types (including void). |
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static Set<Class<?>> |
allWrapperTypes()
Returns an immutable set of all nine primitive-wrapper types (including Void). |
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static boolean |
isWrapperType(Class<?> type)
Returns true if type is one of the nine
primitive-wrapper types, such as Integer. |
|
static
|
unwrap(Class<T> type)
Returns the corresponding primitive type of type if it is a
wrapper type; otherwise returns type itself. |
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static
|
wrap(Class<T> type)
Returns the corresponding wrapper type of type if it is a primitive
type; otherwise returns type itself. |
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| Methods inherited from class java.lang.Object |
|---|
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
| Method Detail |
|---|
public static Set<Class<?>> allPrimitiveTypes()
void). Note that a simpler way to test whether a Class instance
is a member of this set is to call Class.isPrimitive().
public static Set<Class<?>> allWrapperTypes()
Void).
public static boolean isWrapperType(Class<?> type)
true if type is one of the nine
primitive-wrapper types, such as Integer.
Class.isPrimitive()public static <T> Class<T> wrap(Class<T> type)
type if it is a primitive
type; otherwise returns type itself. Idempotent.
wrap(int.class) == Integer.class
wrap(Integer.class) == Integer.class
wrap(String.class) == String.class
public static <T> Class<T> unwrap(Class<T> type)
type if it is a
wrapper type; otherwise returns type itself. Idempotent.
unwrap(Integer.class) == int.class
unwrap(int.class) == int.class
unwrap(String.class) == String.class
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