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 Summary

      Fields 
      Modifier and Type Field Description
      static int ROLE_CARDINALITY_INFINITY
      To specify an unlimited cardinality.
    • Method Summary

      Modifier and Type Method Description
      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.
    • 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.