Package javax.servlet

Interface Registration

All Known Subinterfaces:
FilterRegistration, FilterRegistration.Dynamic, Registration.Dynamic, ServletRegistration, ServletRegistration.Dynamic
public interface Registration
Common interface for the registration of Filters and Servlets.
Since:
Servlet 3.0

  • Nested Class Summary

    Nested Classes
    Modifier and Type
    Interface
    Description
    static interface 
    Registration.Dynamic
    Interface through which a Servlet or Filter registered via one of the addServlet or addFilter methods, respectively, on ServletContext may be further configured.

  • Method Summary

    Modifier and Type
    Method
    Description
    String
    getClassName()
    Obtain the name of the implementation class for the Servlet.
    String
    getInitParameter(String name)
    Get the value of an initialisation parameter.
    Map<String,String>
    getInitParameters()
    Get the names and values of all the initialisation parameters.
    String
    getName()
    Obtain the name of the Servlet.
    boolean
    setInitParameter(String name, String value)
    Add an initialisation parameter if not already added.
    Set<String>
    setInitParameters(Map<String,String> initParameters)
    Add multiple initialisation parameters.

  • Method Details

    • getName

      String getName()
      Obtain the name of the Servlet.
      Returns:
      the name of the Servlet.

    • getClassName

      String getClassName()
      Obtain the name of the implementation class for the Servlet.
      Returns:
      the name of the implementation class for the Servlet.

    • setInitParameter

      boolean setInitParameter(String name, String value)
      Add an initialisation parameter if not already added.
      Parameters:
      name - Name of initialisation parameter
      value - Value of initialisation parameter
      Returns:
      true if the initialisation parameter was set, false if the initialisation parameter was not set because an initialisation parameter of the same name already existed
      Throws:
      IllegalArgumentException - if name or value is null
      IllegalStateException - if the ServletContext associated with this registration has already been initialised

    • getInitParameter

      String getInitParameter(String name)
      Get the value of an initialisation parameter.
      Parameters:
      name - The initialisation parameter whose value is required
      Returns:
      The value of the named initialisation parameter

    • setInitParameters

      Set<String> setInitParameters(Map<String,String> initParameters)
      Add multiple initialisation parameters. If any of the supplied initialisation parameter conflicts with an existing initialisation parameter, no updates will be performed.
      Parameters:
      initParameters - The initialisation parameters to add
      Returns:
      The set of initialisation parameter names that conflicted with existing initialisation parameter. If there are no conflicts, this Set will be empty.
      Throws:
      IllegalArgumentException - if any of the supplied initialisation parameters have a null name or value
      IllegalStateException - if the ServletContext associated with this registration has already been initialised

    • getInitParameters

      Map<String,String> getInitParameters()
      Get the names and values of all the initialisation parameters.
      Returns:
      A Map of initialisation parameter names and associated values keyed by name