JavaTM 2 Platform
Standard Ed. 5.0

javax.management.openmbean
Class OpenType

java.lang.Object
  extended by javax.management.openmbean.OpenType
All Implemented Interfaces:
Serializable
Direct Known Subclasses:
ArrayType, CompositeType, SimpleType, TabularType

public abstract class OpenType
extends Object
implements Serializable

The OpenType class is the parent abstract class of all classes which describe the actual open type of open data values.

An open type is defined by:

Since:
1.5
See Also:
Serialized Form

Field Summary
static String[] ALLOWED_CLASSNAMES
          List of the fully qualified names of the Java classes allowed for open data values.
 
Constructor Summary
protected OpenType(String className, String typeName, String description)
          Constructs an OpenType instance (actually a subclass instance as OpenType is abstract), checking for the validity of the given parameters.
 
Method Summary
abstract  boolean equals(Object obj)
          Compares the specified obj parameter with this open type instance for equality.
 String getClassName()
          Returns the fully qualified Java class name of the open data values this open type describes.
 String getDescription()
          Returns the text description of this OpenType instance.
 String getTypeName()
          Returns the name of this OpenType instance.
abstract  int hashCode()
          Returns a hash code value for the object.
 boolean isArray()
          Returns true if the open data values this open type describes are arrays, false otherwise.
abstract  boolean isValue(Object obj)
          Tests whether obj is a value for this open type.
abstract  String toString()
          Returns a string representation of this open type instance.
 
Methods inherited from class java.lang.Object
clone, finalize, getClass, notify, notifyAll, wait, wait, wait
 

Field Detail

ALLOWED_CLASSNAMES

public static final String[] ALLOWED_CLASSNAMES
List of the fully qualified names of the Java classes allowed for open data values. A multidimensional array of any one of these classes is also an allowed for open data values.
ALLOWED_CLASSNAMES = { 
        "java.lang.Void",
        "java.lang.Boolean",
        "java.lang.Character",
        "java.lang.Byte",
        "java.lang.Short",
        "java.lang.Integer",
        "java.lang.Long",
        "java.lang.Float",
        "java.lang.Double",
        "java.lang.String",
        "java.math.BigDecimal",
        "java.math.BigInteger",
        "java.util.Date",
        "javax.management.ObjectName",
        CompositeData.class.getName(),
        TabularData.class.getName() } ;
       

Constructor Detail

OpenType

protected OpenType(String className,
                   String typeName,
                   String description)
            throws OpenDataException
Constructs an OpenType instance (actually a subclass instance as OpenType is abstract), checking for the validity of the given parameters. The validity constraints are described below for each parameter.
 

Parameters:
className - The fully qualified Java class name of the open data values this open type describes. The valid Java class names allowed for open data values are listed in ALLOWED_CLASSNAMES. A multidimensional array of any one of these classes is also an allowed class, in which case the class name follows the rules defined by the method getName() of java.lang.Class. For example, a 3-dimensional array of Strings has for class name "[[[Ljava.lang.String;" (without the quotes).
 
typeName - The name given to the open type this instance represents; cannot be a null or empty string.
 
description - The human readable description of the open type this instance represents; cannot be a null or empty string.
 
Throws:
IllegalArgumentException - if className, typeName or description is a null or empty string
 
OpenDataException - if className is not one of the allowed Java class names for open data
Method Detail

getClassName

public String getClassName()
Returns the fully qualified Java class name of the open data values this open type describes. The only possible Java class names for open data values are listed in ALLOWED_CLASSNAMES. A multidimensional array of any one of these classes is also an allowed class, in which case the class name follows the rules defined by the method getName() of java.lang.Class. For example, a 3-dimensional array of Strings has for class name "[[[Ljava.lang.String;" (without the quotes).

Returns:
the class name.

getTypeName

public String getTypeName()
Returns the name of this OpenType instance.

Returns:
the type name.

getDescription

public String getDescription()
Returns the text description of this OpenType instance.

Returns:
the description.

isArray

public boolean isArray()
Returns true if the open data values this open type describes are arrays, false otherwise.

Returns:
true if this is an array type.

isValue

public abstract boolean isValue(Object obj)
Tests whether obj is a value for this open type.

Parameters:
obj - the object to be tested for validity.
Returns:
true if obj is a value for this open type, false otherwise.

equals

public abstract boolean equals(Object obj)
Compares the specified obj parameter with this open type instance for equality.

Overrides:
equals in class Object
Parameters:
obj - the object to compare to.
Returns:
true if this object and obj are equal.
See Also:
Object.hashCode(), Hashtable

hashCode

public abstract int hashCode()
Description copied from class: Object
Returns a hash code value for the object. This method is supported for the benefit of hashtables such as those provided by java.util.Hashtable.

The general contract of hashCode is:

As much as is reasonably practical, the hashCode method defined by class Object does return distinct integers for distinct objects. (This is typically implemented by converting the internal address of the object into an integer, but this implementation technique is not required by the JavaTM programming language.)

Overrides:
hashCode in class Object
Returns:
a hash code value for this object.
See Also:
Object.equals(java.lang.Object), Hashtable

toString

public abstract String toString()
Returns a string representation of this open type instance.

Overrides:
toString in class Object
Returns:
the string representation.

JavaTM 2 Platform
Standard Ed. 5.0

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For further API reference and developer documentation, see Java 2 SDK SE Developer Documentation. That documentation contains more detailed, developer-targeted descriptions, with conceptual overviews, definitions of terms, workarounds, and working code examples.

Copyright 2004 Sun Microsystems, Inc. All rights reserved. Use is subject to license terms. Also see the documentation redistribution policy.