Class TagHandlerPool

java.lang.Object
org.apache.jasper.runtime.TagHandlerPool

public class TagHandlerPool extends Object
Pool of tag handlers that can be reused.
  • Field Details

  • Constructor Details

    • TagHandlerPool

      public TagHandlerPool()
      Constructs a tag handler pool with the default capacity.
    • TagHandlerPool

      public TagHandlerPool(int capacity)
      Deprecated.
      Use static getTagHandlerPool
      Constructs a tag handler pool with the given capacity.
      Parameters:
      capacity - Tag handler pool capacity
  • Method Details

    • getTagHandlerPool

      public static TagHandlerPool getTagHandlerPool(javax.servlet.ServletConfig config)
    • init

      protected void init(javax.servlet.ServletConfig config)
    • get

      public <T extends JspTag> JspTag get(Class<T> handlerClass) throws JspException
      Gets the next available tag handler from this tag handler pool, instantiating one if this tag handler pool is empty.
      Parameters:
      handlerClass - Tag handler class
      Returns:
      Reused or newly instantiated tag handler
      Throws:
      JspException - if a tag handler cannot be instantiated
    • reuse

      public void reuse(JspTag handler)
      Adds the given tag handler to this tag handler pool, unless this tag handler pool has already reached its capacity, in which case the tag handler's release() method is called.
      Parameters:
      handler - JspTag handler to add to this tag handler pool
    • release

      public void release()
      Calls the release() method of all available tag handlers in this tag handler pool.
    • getOption

      protected static String getOption(javax.servlet.ServletConfig config, String name, String defaultV)