Package org.jfree.chart.servlet

Class ChartDeleter

java.lang.Object
org.jfree.chart.servlet.ChartDeleter
All Implemented Interfaces:
Serializable, EventListener, javax.servlet.http.HttpSessionBindingListener
public class ChartDeleter
extends Object
implements javax.servlet.http.HttpSessionBindingListener, Serializable
Used for deleting charts from the temporary directory when the users session expires.
See Also:
Serialized Form

  • Constructor Summary

    Constructors
    Constructor Description
    ChartDeleter()
    Blank constructor.

  • Method Summary

    Modifier and Type Method Description
    void addChart​(String filename)
    Add a chart to be deleted when the session expires
    boolean isChartAvailable​(String filename)
    Checks to see if a chart is in the list of charts to be deleted
    void valueBound​(javax.servlet.http.HttpSessionBindingEvent event)
    Binding this object to the session has no additional effects.
    void valueUnbound​(javax.servlet.http.HttpSessionBindingEvent event)
    When this object is unbound from the session (including upon session expiry) the files that have been added to the ArrayList are iterated and deleted.

    Methods inherited from class java.lang.Object

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

  • Constructor Details

  • Method Details

    • addChart

      public void addChart​(String filename)
      Add a chart to be deleted when the session expires
      Parameters:
      filename - the name of the chart in the temporary directory to be deleted.

    • isChartAvailable

      public boolean isChartAvailable​(String filename)
      Checks to see if a chart is in the list of charts to be deleted
      Parameters:
      filename - the name of the chart in the temporary directory.
      Returns:
      A boolean value indicating whether the chart is present in the list.

    • valueBound

      public void valueBound​(javax.servlet.http.HttpSessionBindingEvent event)
      Binding this object to the session has no additional effects.
      Specified by:
      valueBound in interface javax.servlet.http.HttpSessionBindingListener
      Parameters:
      event - the session bind event.

    • valueUnbound

      public void valueUnbound​(javax.servlet.http.HttpSessionBindingEvent event)
      When this object is unbound from the session (including upon session expiry) the files that have been added to the ArrayList are iterated and deleted.
      Specified by:
      valueUnbound in interface javax.servlet.http.HttpSessionBindingListener
      Parameters:
      event - the session unbind event.