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JavaTM 2 Platform Std. Ed. v1.6.0

javax.management.relation
Class RoleInfo

java.lang.Object
  extended by javax.management.relation.RoleInfo
All Implemented Interfaces:
Serializable

public class RoleInfo
extends Object
implements Serializable

A RoleInfo object summarises a role in a relation type.

The serialVersionUID of this class is 2504952983494636987L.

Since:
1.5
See Also:
Serialized Form

Field Summary
static int ROLE_CARDINALITY_INFINITY
          To specify an unlimited cardinality.
 
Constructor Summary
RoleInfo(RoleInfo roleInfo)
          Copy constructor.
RoleInfo(String roleName, String mbeanClassName)
          Constructor.
RoleInfo(String roleName, String mbeanClassName, boolean read, boolean write)
          Constructor.
RoleInfo(String roleName, String mbeanClassName, boolean read, boolean write, int min, int max, String descr)
          Constructor.
 
Method Summary
 boolean checkMaxDegree(int value)
          Returns true if the value parameter is lower than or equal to the expected maximum degree, false otherwise.
 boolean checkMinDegree(int value)
          Returns true if the value parameter is greater than or equal to the expected minimum degree, false otherwise.
 String getDescription()
          Returns description text for the role.
 int getMaxDegree()
          Returns maximum degree for corresponding role reference.
 int getMinDegree()
          Returns minimum degree for corresponding role reference.
 String getName()
          Returns the name of the role.
 String getRefMBeanClassName()
          Returns name of type of MBean expected to be referenced in corresponding role.
 boolean isReadable()
          Returns read access mode for the role (true if it is readable).
 boolean isWritable()
          Returns write access mode for the role (true if it is writable).
 String toString()
          Returns a string describing the role info.
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
 

Field Detail

ROLE_CARDINALITY_INFINITY

public static final int ROLE_CARDINALITY_INFINITY
To specify an unlimited cardinality.

See Also:
Constant Field Values
Constructor Detail

RoleInfo

public RoleInfo(String roleName,
                String mbeanClassName,
                boolean read,
                boolean write,
                int min,
                int max,
                String descr)
         throws IllegalArgumentException,
                InvalidRoleInfoException,
                ClassNotFoundException,
                NotCompliantMBeanException
Constructor.

Parameters:
roleName - name of the role.
mbeanClassName - name of the class of MBean(s) expected to be referenced in corresponding role. If an MBean M is in this role, then the MBean server must return true for isInstanceOf(M, mbeanClassName).
read - flag to indicate if the corresponding role can be read
write - flag to indicate if the corresponding role can be set
min - minimum degree for role, i.e. minimum number of MBeans to provide in corresponding role Must be less than or equal to max. (ROLE_CARDINALITY_INFINITY for unlimited)
max - maximum degree for role, i.e. maximum number of MBeans to provide in corresponding role Must be greater than or equal to min (ROLE_CARDINALITY_INFINITY for unlimited)
descr - description of the role (can be null)
Throws:
IllegalArgumentException - if null parameter
InvalidRoleInfoException - if the minimum degree is greater than the maximum degree.
ClassNotFoundException - As of JMX 1.2, this exception can no longer be thrown. It is retained in the declaration of this class for compatibility with existing code.
NotCompliantMBeanException - if the class mbeanClassName is not a MBean class.

RoleInfo

public RoleInfo(String roleName,
                String mbeanClassName,
                boolean read,
                boolean write)
         throws IllegalArgumentException,
                ClassNotFoundException,
                NotCompliantMBeanException
Constructor.

Parameters:
roleName - name of the role
mbeanClassName - name of the class of MBean(s) expected to be referenced in corresponding role. If an MBean M is in this role, then the MBean server must return true for isInstanceOf(M, mbeanClassName).
read - flag to indicate if the corresponding role can be read
write - flag to indicate if the corresponding role can be set

Minimum and maximum degrees defaulted to 1.

Description of role defaulted to null.

Throws:
IllegalArgumentException - if null parameter
ClassNotFoundException - As of JMX 1.2, this exception can no longer be thrown. It is retained in the declaration of this class for compatibility with existing code.
NotCompliantMBeanException - As of JMX 1.2, this exception can no longer be thrown. It is retained in the declaration of this class for compatibility with existing code.

RoleInfo

public RoleInfo(String roleName,
                String mbeanClassName)
         throws IllegalArgumentException,
                ClassNotFoundException,
                NotCompliantMBeanException
Constructor.

Parameters:
roleName - name of the role
mbeanClassName - name of the class of MBean(s) expected to be referenced in corresponding role. If an MBean M is in this role, then the MBean server must return true for isInstanceOf(M, mbeanClassName).

IsReadable and IsWritable defaulted to true.

Minimum and maximum degrees defaulted to 1.

Description of role defaulted to null.

Throws:
IllegalArgumentException - if null parameter
ClassNotFoundException - As of JMX 1.2, this exception can no longer be thrown. It is retained in the declaration of this class for compatibility with existing code.
NotCompliantMBeanException - As of JMX 1.2, this exception can no longer be thrown. It is retained in the declaration of this class for compatibility with existing code.

RoleInfo

public RoleInfo(RoleInfo roleInfo)
         throws IllegalArgumentException
Copy constructor.

Parameters:
roleInfo - the RoleInfo instance to be copied.
Throws:
IllegalArgumentException - if null parameter
Method Detail

getName

public String getName()
Returns the name of the role.

Returns:
the name of the role.

isReadable

public boolean isReadable()
Returns read access mode for the role (true if it is readable).

Returns:
true if the role is readable.

isWritable

public boolean isWritable()
Returns write access mode for the role (true if it is writable).

Returns:
true if the role is writable.

getDescription

public String getDescription()
Returns description text for the role.

Returns:
the description of the role.

getMinDegree

public int getMinDegree()
Returns minimum degree for corresponding role reference.

Returns:
the minimum degree.

getMaxDegree

public int getMaxDegree()
Returns maximum degree for corresponding role reference.

Returns:
the maximum degree.

getRefMBeanClassName

public String getRefMBeanClassName()

Returns name of type of MBean expected to be referenced in corresponding role.

Returns:
the name of the referenced type.

checkMinDegree

public boolean checkMinDegree(int value)
Returns true if the value parameter is greater than or equal to the expected minimum degree, false otherwise.

Parameters:
value - the value to be checked
Returns:
true if greater than or equal to minimum degree, false otherwise.

checkMaxDegree

public boolean checkMaxDegree(int value)
Returns true if the value parameter is lower than or equal to the expected maximum degree, false otherwise.

Parameters:
value - the value to be checked
Returns:
true if lower than or equal to maximum degree, false otherwise.

toString

public String toString()
Returns a string describing the role info.

Overrides:
toString in class Object
Returns:
a description of the role info.

Copyright 2003 Sun Microsystems, Inc. All rights reserved