javax.management.openmbean

Class SimpleType<T>

public final class SimpleType<T> extends OpenType<T>

The open type descriptor for data values that are members of one of the simple types (such as an integer or a string). The other open types ({@link ArrayType}, {@link CompositeType}, {@link TabularType}) are constructed from one or more of these types. The simple types are formed from a small subset of basic Java types. As a result, the valid instances of this class are predefined, and no constructor is given for creating new instances.

Since: 1.5

Field Summary
static SimpleType<BigDecimal>	BIGDECIMAL The {@link SimpleType} representation of `java.math.BigDecimal`.
static SimpleType<BigInteger>	BIGINTEGER The {@link SimpleType} representation of `java.math.BigInteger`.
static SimpleType<Boolean>	BOOLEAN The {@link SimpleType} representation of `java.lang.Boolean`.
static SimpleType<Byte>	BYTE The {@link SimpleType} representation of `java.lang.Byte`.
static SimpleType<Character>	CHARACTER The {@link SimpleType} representation of `java.lang.Character`.
static SimpleType<Date>	DATE The {@link SimpleType} representation of `java.util.Date`.
static SimpleType<Double>	DOUBLE The {@link SimpleType} representation of `java.lang.Double`.
static SimpleType<Float>	FLOAT The {@link SimpleType} representation of `java.lang.Float`.
static SimpleType<Integer>	INTEGER The {@link SimpleType} representation of `java.lang.Integer`.
static SimpleType<Long>	LONG The {@link SimpleType} representation of `java.lang.Long`.
static SimpleType<ObjectName>	OBJECTNAME The {@link SimpleType} representation of `javax.management.ObjectName`.
static SimpleType<Short>	SHORT The {@link SimpleType} representation of `java.lang.Short`.
static SimpleType<String>	STRING The {@link SimpleType} representation of `java.lang.String`.
static SimpleType<Void>	VOID The {@link SimpleType} representation of `java.lang.Void`.

Method Summary
boolean	equals(Object obj) Compares this simple data type with another object for equality.
int	hashCode() Returns the hash code of the simple data type.
boolean	isValue(Object obj) Returns true if the specified object is a member of this simple type.
Object	readResolve() Replaces instances of this class read from an {@link java.io.ObjectInputStream} with one of the predefined values.
String	toString() Returns a textual representation of this instance.

Field Detail

BIGDECIMAL

public static final SimpleType<BigDecimal> BIGDECIMAL

The {@link SimpleType} representation of java.math.BigDecimal.

BIGINTEGER

public static final SimpleType<BigInteger> BIGINTEGER

The {@link SimpleType} representation of java.math.BigInteger.

BOOLEAN

public static final SimpleType<Boolean> BOOLEAN

The {@link SimpleType} representation of java.lang.Boolean.

BYTE

public static final SimpleType<Byte> BYTE

The {@link SimpleType} representation of java.lang.Byte.

CHARACTER

public static final SimpleType<Character> CHARACTER

The {@link SimpleType} representation of java.lang.Character.

DATE

public static final SimpleType<Date> DATE

The {@link SimpleType} representation of java.util.Date.

DOUBLE

public static final SimpleType<Double> DOUBLE

The {@link SimpleType} representation of java.lang.Double.

FLOAT

public static final SimpleType<Float> FLOAT

The {@link SimpleType} representation of java.lang.Float.

INTEGER

public static final SimpleType<Integer> INTEGER

The {@link SimpleType} representation of java.lang.Integer.

LONG

public static final SimpleType<Long> LONG

The {@link SimpleType} representation of java.lang.Long.

OBJECTNAME

public static final SimpleType<ObjectName> OBJECTNAME

The {@link SimpleType} representation of javax.management.ObjectName.

SHORT

public static final SimpleType<Short> SHORT

The {@link SimpleType} representation of java.lang.Short.

STRING

public static final SimpleType<String> STRING

The {@link SimpleType} representation of java.lang.String.

VOID

public static final SimpleType<Void> VOID

The {@link SimpleType} representation of java.lang.Void.

Method Detail

equals

public boolean equals(Object obj)

Compares this simple data type with another object for equality. The objects are judged to be equal if:

obj is not null.
obj is an instance of {@link SimpleType}.
The class names are equal.

Parameters: obj the object to compare with.

Returns: true if the conditions above hold.

hashCode

public int hashCode()

Returns the hash code of the simple data type. This is simply the hash code of the class name, which is the same element of the type compared as part of the {@link #equals(java.lang.Object)} method, thus ensuring that the hashcode is compatible with the equality test.

As instances of this class are immutable, the hash code is computed just once for each instance and reused throughout its life.

Returns: the hash code of this instance.

isValue

public boolean isValue(Object obj)

Returns true if the specified object is a member of this simple type. The object is judged to be so if it is non-null and its class name is the same as that returned by {@link SimpleType#getClassName()}.

Parameters: obj the object to test for membership.

Returns: true if the object is a member of this type.

readResolve

public Object readResolve()

Replaces instances of this class read from an {@link java.io.ObjectInputStream} with one of the predefined values. This ensures that each existing instance of this class is one of these unique instances.

Returns: the replacement object.

Throws: ObjectStreamException if the object can not be resolved.

toString

public String toString()

Returns a textual representation of this instance. This is constructed using the class name (javax.management.openmbean.SimpleType) and the name of the class the type represents.

As instances of this class are immutable, the return value is computed just once for each instance and reused throughout its life.

Returns: a @link{java.lang.String} instance representing the instance in textual form.