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package javax.management.openmbean;


// java import
//


// jmx import
//
import javax.management.MBeanAttributeInfo;
import javax.management.MBeanOperationInfo;
import javax.management.MBeanConstructorInfo;
import javax.management.MBeanNotificationInfo;




Describes an Open MBean: an Open MBean is recognized as such if its 
getMBeanInfo() method returns an instance of a class which implements the OpenMBeanInfo interface, typically OpenMBeanInfoSupport.


This interface declares the same methods as the class MBeanInfo. A class implementing this interface (typically OpenMBeanInfoSupport) should extend MBeanInfo.


The getAttributes(), getOperations() and getConstructors() methods of the implementing class should return at runtime an array of instances of a subclass of MBeanAttributeInfo, MBeanOperationInfo or MBeanConstructorInfo respectively which implement the OpenMBeanAttributeInfo, OpenMBeanOperationInfo or OpenMBeanConstructorInfo interface respectively. 
Since:1.5
/**
 * <p>Describes an Open MBean: an Open MBean is recognized as such if
 * its {@link javax.management.DynamicMBean#getMBeanInfo()
 * getMBeanInfo()} method returns an instance of a class which
 * implements the {@link OpenMBeanInfo} interface, typically {@link
 * OpenMBeanInfoSupport}.</p>
 *
 * <p>This interface declares the same methods as the class {@link
 * javax.management.MBeanInfo}.  A class implementing this interface
 * (typically {@link OpenMBeanInfoSupport}) should extend {@link
 * javax.management.MBeanInfo}.</p>
 *
 * <p>The {@link #getAttributes()}, {@link #getOperations()} and
 * {@link #getConstructors()} methods of the implementing class should
 * return at runtime an array of instances of a subclass of {@link
 * MBeanAttributeInfo}, {@link MBeanOperationInfo} or {@link
 * MBeanConstructorInfo} respectively which implement the {@link
 * OpenMBeanAttributeInfo}, {@link OpenMBeanOperationInfo} or {@link
 * OpenMBeanConstructorInfo} interface respectively.
 *
 *
 * @since 1.5
 */
public interface OpenMBeanInfo {

    // Re-declares the methods that are in class MBeanInfo of JMX 1.0
    // (methods will be removed when MBeanInfo is made a parent interface of this interface)

    
Returns the fully qualified Java class name of the open MBean
instances this OpenMBeanInfo describes.

Returns:the class name.
/**
     * Returns the fully qualified Java class name of the open MBean
     * instances this <tt>OpenMBeanInfo</tt> describes.
     *
     * @return the class name.
     */
    public String getClassName() ;

    
Returns a human readable description of the type of open MBean
instances this OpenMBeanInfo describes.

Returns:the description.
/**
     * Returns a human readable description of the type of open MBean
     * instances this <tt>OpenMBeanInfo</tt> describes.
     *
     * @return the description.
     */
    public String getDescription() ;

    
Returns an array of OpenMBeanAttributeInfo instances
describing each attribute in the open MBean described by this
OpenMBeanInfo instance.  Each instance in the returned
array should actually be a subclass of
MBeanAttributeInfo which implements the
OpenMBeanAttributeInfo interface (typically OpenMBeanAttributeInfoSupport). 
Returns:the attribute array.
/**
     * Returns an array of <tt>OpenMBeanAttributeInfo</tt> instances
     * describing each attribute in the open MBean described by this
     * <tt>OpenMBeanInfo</tt> instance.  Each instance in the returned
     * array should actually be a subclass of
     * <tt>MBeanAttributeInfo</tt> which implements the
     * <tt>OpenMBeanAttributeInfo</tt> interface (typically {@link
     * OpenMBeanAttributeInfoSupport}).
     *
     * @return the attribute array.
     */
    public MBeanAttributeInfo[] getAttributes() ;

    
Returns an array of OpenMBeanOperationInfo instances
describing each operation in the open MBean described by this
OpenMBeanInfo instance.  Each instance in the returned
array should actually be a subclass of
MBeanOperationInfo which implements the
OpenMBeanOperationInfo interface (typically OpenMBeanOperationInfoSupport). 
Returns:the operation array.
/**
     * Returns an array of <tt>OpenMBeanOperationInfo</tt> instances
     * describing each operation in the open MBean described by this
     * <tt>OpenMBeanInfo</tt> instance.  Each instance in the returned
     * array should actually be a subclass of
     * <tt>MBeanOperationInfo</tt> which implements the
     * <tt>OpenMBeanOperationInfo</tt> interface (typically {@link
     * OpenMBeanOperationInfoSupport}).
     *
     * @return the operation array.
     */
    public MBeanOperationInfo[] getOperations() ;

    
Returns an array of OpenMBeanConstructorInfo instances
describing each constructor in the open MBean described by this
OpenMBeanInfo instance.  Each instance in the returned
array should actually be a subclass of
MBeanConstructorInfo which implements the
OpenMBeanConstructorInfo interface (typically OpenMBeanConstructorInfoSupport). 
Returns:the constructor array.
/**
     * Returns an array of <tt>OpenMBeanConstructorInfo</tt> instances
     * describing each constructor in the open MBean described by this
     * <tt>OpenMBeanInfo</tt> instance.  Each instance in the returned
     * array should actually be a subclass of
     * <tt>MBeanConstructorInfo</tt> which implements the
     * <tt>OpenMBeanConstructorInfo</tt> interface (typically {@link
     * OpenMBeanConstructorInfoSupport}).
     *
     * @return the constructor array.
     */
    public MBeanConstructorInfo[] getConstructors() ;

    
Returns an array of MBeanNotificationInfo instances
describing each notification emitted by the open MBean
described by this OpenMBeanInfo instance.

Returns:the notification array.
/**
     * Returns an array of <tt>MBeanNotificationInfo</tt> instances
     * describing each notification emitted by the open MBean
     * described by this <tt>OpenMBeanInfo</tt> instance.
     *
     * @return the notification array.
     */
    public MBeanNotificationInfo[] getNotifications() ;


    // commodity methods
    //

    
Compares the specified obj parameter with this OpenMBeanInfo instance for equality.


Returns true if and only if all of the following statements are true:

    

  • obj is non null,
    • 

  • obj also implements the OpenMBeanInfo interface,
    • 

  • their class names are equal
    • 

  • their infos on attributes, constructors, operations and notifications are equal
    • 


This ensures that this equals method works properly for obj parameters which are
different implementations of the OpenMBeanInfo interface.

 

Params:
  • obj –  the object to be compared for equality with this OpenMBeanInfo instance;
Returns: true if the specified object is equal to this OpenMBeanInfo instance.
/**
     * Compares the specified <var>obj</var> parameter with this <code>OpenMBeanInfo</code> instance for equality.
     * <p>
     * Returns <tt>true</tt> if and only if all of the following statements are true:
     * <ul>
     * <li><var>obj</var> is non null,</li>
     * <li><var>obj</var> also implements the <code>OpenMBeanInfo</code> interface,</li>
     * <li>their class names are equal</li>
     * <li>their infos on attributes, constructors, operations and notifications are equal</li>
     * </ul>
     * This ensures that this <tt>equals</tt> method works properly for <var>obj</var> parameters which are
     * different implementations of the <code>OpenMBeanInfo</code> interface.
     * <br>&nbsp;
     * @param  obj  the object to be compared for equality with this <code>OpenMBeanInfo</code> instance;
     *
     * @return  <code>true</code> if the specified object is equal to this <code>OpenMBeanInfo</code> instance.
     */
    public boolean equals(Object obj);

    
Returns the hash code value for this OpenMBeanInfo instance.


The hash code of an OpenMBeanInfo instance is the sum of the hash codes
of all elements of information used in equals comparisons
(ie: its class name, and its infos on attributes, constructors, operations and notifications,
where the hashCode of each of these arrays is calculated by a call to
 new java.util.HashSet(java.util.Arrays.asList(this.getSignature)).hashCode()).


This ensures that  t1.equals(t2)  implies that  t1.hashCode()==t2.hashCode() 
for any two OpenMBeanInfo instances t1 and t2, as required by the general contract of the method Object.hashCode(). 


Returns: the hash code value for this OpenMBeanInfo instance
/**
     * Returns the hash code value for this <code>OpenMBeanInfo</code> instance.
     * <p>
     * The hash code of an <code>OpenMBeanInfo</code> instance is the sum of the hash codes
     * of all elements of information used in <code>equals</code> comparisons
     * (ie: its class name, and its infos on attributes, constructors, operations and notifications,
     * where the hashCode of each of these arrays is calculated by a call to
     *  <tt>new java.util.HashSet(java.util.Arrays.asList(this.getSignature)).hashCode()</tt>).
     * <p>
     * This ensures that <code> t1.equals(t2) </code> implies that <code> t1.hashCode()==t2.hashCode() </code>
     * for any two <code>OpenMBeanInfo</code> instances <code>t1</code> and <code>t2</code>,
     * as required by the general contract of the method
     * {@link Object#hashCode() Object.hashCode()}.
     * <p>
     *
     * @return  the hash code value for this <code>OpenMBeanInfo</code> instance
     */
    public int hashCode();

    
Returns a string representation of this OpenMBeanInfo instance.


The string representation consists of the name of this class (ie javax.management.openmbean.OpenMBeanInfo),
the MBean class name,
and the string representation of infos on attributes, constructors, operations and notifications of the described MBean.

Returns: a string representation of this OpenMBeanInfo instance
/**
     * Returns a string representation of this <code>OpenMBeanInfo</code> instance.
     * <p>
     * The string representation consists of the name of this class (ie <code>javax.management.openmbean.OpenMBeanInfo</code>),
     * the MBean class name,
     * and the string representation of infos on attributes, constructors, operations and notifications of the described MBean.
     *
     * @return  a string representation of this <code>OpenMBeanInfo</code> instance
     */
    public String toString();

}