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Java Standard Edition (SE)

RoleInfo


compact3
javax.management.relation

Class 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 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.
    • 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.


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