Package jline.lang.constant

Class ServerType

  • All Implemented Interfaces:
    java.io.Serializable , jline.lang.Copyable 
    
public class ServerType
extends Element implements Serializable

    Represents a type of server within a heterogeneous multiserver queue.

    A server type defines a group of identical servers with:

    • A unique name identifying this server type
    • A count of servers of this type
    • A list of job classes that are compatible with (can be served by) this type

    Server types enable modeling of heterogeneous multiserver queues where different servers may have different service rates and serve different subsets of job classes.

    Example usage: 

    ServerType fastServer = new ServerType("Fast", 2);
fastServer.addCompatibleClass(classA);
fastServer.addCompatibleClass(classB);
queue.addServerType(fastServer);
queue.setService(classA, fastServer, new Exp(2.0));

    • Nested Class Summary

      Nested Classes 
      Modifier and Type Class Description

    • Constructor Summary

      Constructors 
      Constructor Description
      ServerType(String name, int numOfServers) Creates a new server type with the specified name and number of servers.
      ServerType(String name, int numOfServers, List<JobClass> compatibleClasses) Creates a new server type with the specified name, number of servers, and compatible classes.

    • Enum Constant Summary

      Enum Constants 
      Enum Constant Description

    • Method Summary

      Modifier and Type Method Description
      int getId() Gets the unique identifier of this server type within its queue.
      void setId(int id) Sets the unique identifier of this server type.
      int getNumOfServers() Gets the number of servers of this type.
      void setNumOfServers(int numOfServers) Sets the number of servers of this type.
      List<JobClass> getCompatibleClasses() Gets the list of job classes compatible with this server type.
      void setCompatibleClasses(List<JobClass> classes) Sets the list of compatible job classes, replacing any existing list.
      Queue getParentQueue() Gets the parent queue this server type belongs to.
      void setParentQueue(Queue queue) Sets the parent queue for this server type.
      void addCompatibleClass(JobClass jobClass) Adds a job class to the list of classes that can be served by this server type.
      boolean removeCompatibleClass(JobClass jobClass) Removes a job class from the list of compatible classes.
      boolean isCompatible(JobClass jobClass) Checks if a job class is compatible with this server type.
      int getNumCompatibleClasses() Gets the number of compatible job classes.
      boolean hasCompatibleClasses() Checks if this server type has any compatible classes defined.
      String toString()

      • Methods inherited from class jline.lang.Element

        getName, setName

      • Methods inherited from class jline.lang.Copyable

        copy

      • Methods inherited from class java.lang.Object

        clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

    • Constructor Detail

      • ServerType

        ServerType(String name, int numOfServers)
        Creates a new server type with the specified name and number of servers.
        Parameters:
        name - the name identifying this server type (e.g.
        numOfServers - the number of servers of this type (must be >= 1)

      • ServerType

        ServerType(String name, int numOfServers, List<JobClass> compatibleClasses)
        Creates a new server type with the specified name, number of servers, and compatible classes.
        Parameters:
        name - the name identifying this server type
        numOfServers - the number of servers of this type (must be >= 1)
        compatibleClasses - initial list of compatible job classes

    • Method Detail

      • getId

         int getId()

        Gets the unique identifier of this server type within its queue.

        Returns:

        the server type ID, or -1 if not yet added to a queue

      • setId

         void setId(int id)

        Sets the unique identifier of this server type. This is typically called by the Queue when the server type is added.

        Parameters:
        id - the ID to assign

      • getNumOfServers

         int getNumOfServers()

        Gets the number of servers of this type.

        Returns:

        the number of servers

      • setNumOfServers

         void setNumOfServers(int numOfServers)

        Sets the number of servers of this type.

        Parameters:
        numOfServers - the number of servers (must be >= 1)

      • getCompatibleClasses

         List<JobClass> getCompatibleClasses()

        Gets the list of job classes compatible with this server type.

        Returns:

        a new list containing the compatible job classes

      • setCompatibleClasses

         void setCompatibleClasses(List<JobClass> classes)

        Sets the list of compatible job classes, replacing any existing list.

        Parameters:
        classes - the list of job classes to set as compatible

      • getParentQueue

         Queue getParentQueue()

        Gets the parent queue this server type belongs to.

        Returns:

        the parent queue, or null if not yet added to a queue

      • setParentQueue

         void setParentQueue(Queue queue)

        Sets the parent queue for this server type. This is typically called by the Queue when the server type is added.

        Parameters:
        queue - the parent queue

      • addCompatibleClass

         void addCompatibleClass(JobClass jobClass)

        Adds a job class to the list of classes that can be served by this server type.

        Parameters:
        jobClass - the job class to add as compatible

      • removeCompatibleClass

         boolean removeCompatibleClass(JobClass jobClass)

        Removes a job class from the list of compatible classes.

        Parameters:
        jobClass - the job class to remove
        Returns:

        true if the class was removed, false if it was not in the list

      • isCompatible

         boolean isCompatible(JobClass jobClass)

        Checks if a job class is compatible with this server type.

        Parameters:
        jobClass - the job class to check
        Returns:

        true if the class can be served by this server type

      • getNumCompatibleClasses

         int getNumCompatibleClasses()

        Gets the number of compatible job classes.

        Returns:

        the count of compatible classes

      • hasCompatibleClasses

         boolean hasCompatibleClasses()

        Checks if this server type has any compatible classes defined.

        Returns:

        true if at least one compatible class is defined