Class SimpleType<T>
- java.lang.Object
-
- javax.management.openmbean.OpenType<T>
-
- javax.management.openmbean.SimpleType<T>
- All Implemented Interfaces:
Serializable
public final class SimpleType<T> extends OpenType<T>
The SimpleType
class is the open type class whose instances describe all open data values which are neither arrays, nor CompositeData
values, nor TabularData
values. It predefines all its possible instances as static fields, and has no public constructor.
Given a SimpleType
instance describing values whose Java class name is className, the internal fields corresponding to the name and description of this SimpleType
instance are also set to className. In other words, its methods getClassName
, getTypeName
and getDescription
all return the same string value className.
- Since:
- 1.5
- See Also:
- Serialized Form
Field Summary
Modifier and Type | Field | Description |
---|---|---|
static SimpleType<BigDecimal> | BIGDECIMAL | The |
static SimpleType<BigInteger> | BIGINTEGER | The |
static SimpleType<Boolean> | BOOLEAN | The |
static SimpleType<Byte> | BYTE | The |
static SimpleType<Character> | CHARACTER | The |
static SimpleType<Date> | DATE | The |
static SimpleType<Double> | DOUBLE | The |
static SimpleType<Float> | FLOAT | The |
static SimpleType<Integer> | INTEGER | The |
static SimpleType<Long> | LONG | The |
static SimpleType<ObjectName> | OBJECTNAME | The |
static SimpleType<Short> | SHORT | The |
static SimpleType<String> | STRING | The |
static SimpleType<Void> | VOID | The |
Fields declared in class javax.management.openmbean.OpenType
ALLOWED_CLASSNAMES, ALLOWED_CLASSNAMES_LIST
Method Summary
Modifier and Type | Method | Description |
---|---|---|
boolean | equals(Object obj) | Compares the specified |
int | hashCode() | Returns the hash code value for this |
boolean | isValue(Object obj) | Tests whether obj is a value for this |
Object | readResolve() | Replace an object read from an |
String | toString() | Returns a string representation of this |
Methods declared in class javax.management.openmbean.OpenType
getClassName, getDescription, getTypeName, isArray
Methods declared in class java.lang.Object
clone, finalize, getClass, notify, notifyAll, wait, wait, wait
Field Detail
VOID
public static final SimpleType<Void> VOID
The SimpleType
instance describing values whose Java class name is java.lang.Void
.
BOOLEAN
public static final SimpleType<Boolean> BOOLEAN
The SimpleType
instance describing values whose Java class name is java.lang.Boolean
.
CHARACTER
public static final SimpleType<Character> CHARACTER
The SimpleType
instance describing values whose Java class name is java.lang.Character
.
BYTE
public static final SimpleType<Byte> BYTE
The SimpleType
instance describing values whose Java class name is java.lang.Byte
.
SHORT
public static final SimpleType<Short> SHORT
The SimpleType
instance describing values whose Java class name is java.lang.Short
.
INTEGER
public static final SimpleType<Integer> INTEGER
The SimpleType
instance describing values whose Java class name is java.lang.Integer
.
LONG
public static final SimpleType<Long> LONG
The SimpleType
instance describing values whose Java class name is java.lang.Long
.
FLOAT
public static final SimpleType<Float> FLOAT
The SimpleType
instance describing values whose Java class name is java.lang.Float
.
DOUBLE
public static final SimpleType<Double> DOUBLE
The SimpleType
instance describing values whose Java class name is java.lang.Double
.
STRING
public static final SimpleType<String> STRING
The SimpleType
instance describing values whose Java class name is java.lang.String
.
BIGDECIMAL
public static final SimpleType<BigDecimal> BIGDECIMAL
The SimpleType
instance describing values whose Java class name is java.math.BigDecimal
.
BIGINTEGER
public static final SimpleType<BigInteger> BIGINTEGER
The SimpleType
instance describing values whose Java class name is java.math.BigInteger
.
DATE
public static final SimpleType<Date> DATE
The SimpleType
instance describing values whose Java class name is java.util.Date
.
OBJECTNAME
public static final SimpleType<ObjectName> OBJECTNAME
The SimpleType
instance describing values whose Java class name is javax.management.ObjectName
.
Method Detail
isValue
public boolean isValue(Object obj)
Tests whether obj is a value for this SimpleType
instance.
This method returns true
if and only if obj is not null and obj's class name is the same as the className field defined for this SimpleType
instance (ie the class name returned by the getClassName
method).
- Specified by:
-
isValue
in classOpenType<T>
- Parameters:
-
obj
- the object to be tested. - Returns:
-
true
if obj is a value for thisSimpleType
instance.
equals
public boolean equals(Object obj)
Compares the specified obj
parameter with this SimpleType
instance for equality.
Two SimpleType
instances are equal if and only if their getClassName
methods return the same value.
- Specified by:
-
equals
in classOpenType<T>
- Parameters:
-
obj
- the object to be compared for equality with thisSimpleType
instance; if obj isnull
or is not an instance of the classSimpleType
,equals
returnsfalse
. - Returns:
-
true
if the specified object is equal to thisSimpleType
instance. - See Also:
-
Object.hashCode()
,HashMap
hashCode
public int hashCode()
Returns the hash code value for this SimpleType
instance. The hash code of a SimpleType
instance is the hash code of the string value returned by the getClassName
method.
As SimpleType
instances are immutable, the hash code for this instance is calculated once, on the first call to hashCode
, and then the same value is returned for subsequent calls.
- Overrides:
-
hashCode
in classObject
- Returns:
- the hash code value for this
SimpleType
instance - See Also:
-
Object.equals(java.lang.Object)
,System.identityHashCode(java.lang.Object)
toString
public String toString()
Returns a string representation of this SimpleType
instance.
The string representation consists of the name of this class (ie javax.management.openmbean.SimpleType
) and the type name for this instance (which is the java class name of the values this SimpleType
instance represents).
As SimpleType
instances are immutable, the string representation for this instance is calculated once, on the first call to toString
, and then the same value is returned for subsequent calls.
- Specified by:
-
toString
in classOpenType<T>
- Returns:
- a string representation of this
SimpleType
instance
readResolve
public Object readResolve() throws ObjectStreamException
Replace an object read from an ObjectInputStream
with the unique instance for that value.
- Returns:
- the replacement object.
- Throws:
-
ObjectStreamException
- if the read object cannot be resolved.