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java.lang.Objectjava.lang.Enum<E>
@TransactionType(value=NOT_SUPPORTED) public abstract class Enum<E extends Enum<E>>
This is the common base class of all Java language enumeration types.
Constructor Summary | |
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protected |
Enum(String name,
int ordinal)
Sole constructor. |
Method Summary | ||
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boolean |
equals(Object other)
Returns true if the specified object is equal to this enum constant. |
|
int |
hashCode()
Returns a hash code for this enum constant. |
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String |
name()
Returns the name of this enum constant, exactly as declared in its enum declaration. |
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int |
ordinal()
Returns the ordinal of this enumeration constant (its position in its enum declaration, where the initial constant is assigned an ordinal of zero). |
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String |
toString()
Returns the name of this enum constant, as contained in the declaration. |
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static
|
valueOf(Class<T> enumType,
String name)
Returns the enum constant of the specified enum type with the specified name. |
Methods inherited from class java.lang.Object |
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getClass, notify, notifyAll, wait, wait, wait |
Constructor Detail |
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protected Enum(String name, int ordinal)
name
- - The name of this enum constant, which is the identifier
used to declare it.ordinal
- - The ordinal of this enumeration constant (its position
in the enum declaration, where the initial constant is assigned
an ordinal of zero).Method Detail |
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public final String name()
toString()
method in
preference to this one, as the toString method may return
a more user-friendly name. This method is designed primarily for
use in specialized situations where correctness depends on getting the
exact name, which will not vary from release to release.
public final int ordinal()
EnumSet
and EnumMap
.
public String toString()
toString
in class Object
public final boolean equals(Object other)
equals
in class Object
other
- the object to be compared for equality with this object.
Boolean.hashCode()
,
Hashtable
public final int hashCode()
hashCode
in class Object
Object.equals(java.lang.Object)
,
Hashtable
public static <T extends Enum<T>> T valueOf(Class<T> enumType, String name)
enumType
- the Class object of the enum type from which
to return a constantname
- the name of the constant to return
IllegalArgumentException
- if the specified enum type has
no constant with the specified name, or the specified
class object does not represent an enum type
NullPointerException
- if enumType or name
is null
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