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package javax.management.openmbean;


// java import
//
import java.util.Set;
import java.lang.Comparable; // to be substituted for jdk1.1.x


// jmx import
//



Describes a parameter used in one or more operations or
constructors of an open MBean.


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


Since:1.5
/**
 * <p>Describes a parameter used in one or more operations or
 * constructors of an open MBean.</p>
 *
 * <p>This interface declares the same methods as the class {@link
 * javax.management.MBeanParameterInfo}.  A class implementing this
 * interface (typically {@link OpenMBeanParameterInfoSupport}) should
 * extend {@link javax.management.MBeanParameterInfo}.</p>
 *
 *
 * @since 1.5
 */
public interface OpenMBeanParameterInfo {


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

    
Returns a human readable description of the parameter described by this OpenMBeanParameterInfo instance. 
Returns:the description.
/**
     * Returns a human readable description of the parameter
     * described by this {@code OpenMBeanParameterInfo} instance.
     *
     * @return the description.
     */
    public String getDescription() ;

    
Returns the name of the parameter described by this OpenMBeanParameterInfo instance. 
Returns:the name.
/**
     * Returns the name of the parameter
     * described by this {@code OpenMBeanParameterInfo} instance.
     *
     * @return the name.
     */
    public String getName() ;


    // Now declares methods that are specific to open MBeans
    //

    
Returns the open type of the values of the parameter described by this OpenMBeanParameterInfo instance. 
Returns:the open type.
/**
     * Returns the <i>open type</i> of the values of the parameter
     * described by this {@code OpenMBeanParameterInfo} instance.
     *
     * @return the open type.
     */
    public OpenType<?> getOpenType() ;

    
Returns the default value for this parameter, if it has one, or null otherwise. 
Returns:the default value.
/**
     * Returns the default value for this parameter, if it has one, or
     * {@code null} otherwise.
     *
     * @return the default value.
     */
    public Object getDefaultValue() ;

    
Returns the set of legal values for this parameter, if it has one, or null otherwise. 
Returns:the set of legal values.
/**
     * Returns the set of legal values for this parameter, if it has
     * one, or {@code null} otherwise.
     *
     * @return the set of legal values.
     */
    public Set<?> getLegalValues() ;

    
Returns the minimal value for this parameter, if it has one, or null otherwise. 
Returns:the minimum value.
/**
     * Returns the minimal value for this parameter, if it has one, or
     * {@code null} otherwise.
     *
     * @return the minimum value.
     */
    public Comparable<?> getMinValue() ;

    
Returns the maximal value for this parameter, if it has one, or null otherwise. 
Returns:the maximum value.
/**
     * Returns the maximal value for this parameter, if it has one, or
     * {@code null} otherwise.
     *
     * @return the maximum value.
     */
    public Comparable<?> getMaxValue() ;

    
Returns true if this parameter has a specified default value, or false otherwise. 
Returns:true if there is a default value.
/**
     * Returns {@code true} if this parameter has a specified default
     * value, or {@code false} otherwise.
     *
     * @return true if there is a default value.
     */
    public boolean hasDefaultValue() ;

    
Returns true if this parameter has a specified set of legal values, or false otherwise. 
Returns:true if there is a set of legal values.
/**
     * Returns {@code true} if this parameter has a specified set of
     * legal values, or {@code false} otherwise.
     *
     * @return true if there is a set of legal values.
     */
    public boolean hasLegalValues() ;

    
Returns true if this parameter has a specified minimal value, or false otherwise. 
Returns:true if there is a minimum value.
/**
     * Returns {@code true} if this parameter has a specified minimal
     * value, or {@code false} otherwise.
     *
     * @return true if there is a minimum value.
     */
    public boolean hasMinValue() ;

    
Returns true if this parameter has a specified maximal value, or false otherwise. 
Returns:true if there is a maximum value.
/**
     * Returns {@code true} if this parameter has a specified maximal
     * value, or {@code false} otherwise.
     *
     * @return true if there is a maximum value.
     */
    public boolean hasMaxValue() ;

    
Tests whether obj is a valid value for the parameter described by this OpenMBeanParameterInfo instance. 
Params:
  • obj – the object to be tested.
Returns:true if obj is a valid value for the parameter described by this OpenMBeanParameterInfo instance, false otherwise.
/**
     * Tests whether <var>obj</var> is a valid value for the parameter
     * described by this {@code OpenMBeanParameterInfo} instance.
     *
     * @param obj the object to be tested.
     *
     * @return {@code true} if <var>obj</var> is a valid value
     * for the parameter described by this
     * {@code OpenMBeanParameterInfo} instance,
     * {@code false} otherwise.
     */
    public boolean isValue(Object obj) ;


    
Compares the specified obj parameter with this OpenMBeanParameterInfo instance for equality. 
 Returns true if and only if all of the following statements are true: 
    

  • obj is non null,
    • 

  • obj also implements the OpenMBeanParameterInfo interface,
    • 

  • their names are equal
    • 

  • their open types are equal
    • 

  • their default, min, max and legal values are equal.
    • 

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

Params:
  • obj –  the object to be compared for equality with this OpenMBeanParameterInfo instance;
Returns: true if the specified object is equal to this OpenMBeanParameterInfo instance.
/**
     * Compares the specified <var>obj</var> parameter with this {@code OpenMBeanParameterInfo} instance for equality.
     * <p>
     * Returns {@code true} 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 OpenMBeanParameterInfo} interface,</li>
     * <li>their names are equal</li>
     * <li>their open types are equal</li>
     * <li>their default, min, max and legal values are equal.</li>
     * </ul>
     * This ensures that this {@code equals} method works properly for <var>obj</var> parameters which are
     * different implementations of the {@code OpenMBeanParameterInfo} interface.
     * <br>&nbsp;
     * @param  obj  the object to be compared for equality with this {@code OpenMBeanParameterInfo} instance;
     *
     * @return  {@code true} if the specified object is equal to this {@code OpenMBeanParameterInfo} instance.
     */
    public boolean equals(Object obj);

    
Returns the hash code value for this OpenMBeanParameterInfo instance. 
 The hash code of an OpenMBeanParameterInfo instance is the sum of the hash codes of all elements of information used in equals comparisons (ie: its name, its open type, and its default, min, max and legal values).

 This ensures that t1.equals(t2) implies that t1.hashCode()==t2.hashCode() for any two OpenMBeanParameterInfo instances t1 and t2, as required by the general contract of the method Object.hashCode(). 
Returns: the hash code value for this OpenMBeanParameterInfo instance
/**
     * Returns the hash code value for this {@code OpenMBeanParameterInfo} instance.
     * <p>
     * The hash code of an {@code OpenMBeanParameterInfo} instance is the sum of the hash codes
     * of all elements of information used in {@code equals} comparisons
     * (ie: its name, its <i>open type</i>, and its default, min, max and legal values).
     * <p>
     * This ensures that {@code t1.equals(t2)} implies that {@code t1.hashCode()==t2.hashCode()}
     * for any two {@code OpenMBeanParameterInfo} instances {@code t1} and {@code t2},
     * as required by the general contract of the method
     * {@link Object#hashCode() Object.hashCode()}.
     *
     * @return  the hash code value for this {@code OpenMBeanParameterInfo} instance
     */
    public int hashCode();

    
Returns a string representation of this OpenMBeanParameterInfo instance. 
 The string representation consists of the name of this class (ie javax.management.openmbean.OpenMBeanParameterInfo), the string representation of the name and open type of the described parameter, and the string representation of its default, min, max and legal values. 
Returns: a string representation of this OpenMBeanParameterInfo instance
/**
     * Returns a string representation of this {@code OpenMBeanParameterInfo} instance.
     * <p>
     * The string representation consists of the name of this class (ie {@code javax.management.openmbean.OpenMBeanParameterInfo}),
     * the string representation of the name and open type of the described parameter,
     * and the string representation of its default, min, max and legal values.
     *
     * @return  a string representation of this {@code OpenMBeanParameterInfo} instance
     */
    public String toString();

}