Package com.saxonica.ee.stream.adjunct

## Class TryCatchAdjunct.TryCatchFeed

- java.lang.Object
- - net.sf.saxon.event.Outputter
  - - net.sf.saxon.event.ProxyOutputter
    - - com.saxonica.ee.stream.feed.ItemFeed
      - - com.saxonica.ee.stream.adjunct.TryCatchAdjunct.TryCatchFeed

- All Implemented Interfaces:
    `javax.xml.transform.Result`, `Receiver`
  Enclosing class:
    TryCatchAdjunct

      public static class TryCatchAdjunct.TryCatchFeed
      extends ItemFeed

- - ### Field Summary

    - ### Fields inherited from class net.sf.saxon.event.Outputter

      `pipelineConfiguration, systemId`

    - ### Fields inherited from interface javax.xml.transform.Result

      `PI_DISABLE_OUTPUT_ESCAPING, PI_ENABLE_OUTPUT_ESCAPING`

  - ### Method Summary

    All Methods Instance Methods Concrete Methods
    Modifier and Type | Method | Description
    --- | --- | ---
    `void` | `append​(Item item)` | Supply one item towards the streamed input of the expression
    `void` | `close()` | Finish evaluating the expression.
    `void` | `dynamicError​(XPathException err)` | Report a dynamic error.
    `void` | `open​(Terminator terminator)` | Start evaluating the expression.

    - ### Methods inherited from class com.saxonica.ee.stream.feed.ItemFeed

      `append, endSelectedParentNode, getContext, getExpression, getResult, getTerminator, hasFailed, processItems, setExpression, setHasFailed, setTerminator, startSelectedParentNode`

    - ### Methods inherited from class net.sf.saxon.event.ProxyOutputter

      `attribute, characters, comment, endDocument, endElement, getNextOutputter, namespace, open, processingInstruction, setLocation, setUnparsedEntity, startContent, startDocument, startElement, startElement, usesTypeAnnotations`

    - ### Methods inherited from class net.sf.saxon.event.Outputter

      `getConfiguration, getPipelineConfiguration, getStringReceiver, getSystemId, namespaces, setPipelineConfiguration, setSystemId`

    - ### Methods inherited from class java.lang.Object

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

    - ### Methods inherited from interface net.sf.saxon.event.Receiver

      `handlesAppend`

- - ### Method Detail

    - #### open

          public void open​(Terminator terminator)
                    throws XPathException

      Start evaluating the expression. The default implementation does nothing.
      Overrides:
        `open` in class `ItemFeed`
      Parameters:
        `terminator` - used to achieve early exit
      Throws:
        `XPathException` - if a dynamic error occurs

    - #### append

          public void append​(Item item)
                      throws XPathException

      Supply one item towards the streamed input of the expression
      Specified by:
        `append` in interface `Receiver`
      Specified by:
        `append` in class `ItemFeed`
      Parameters:
        `item` - the item to be supplied
      Throws:
        `XPathException` - if the operation fails

    - #### close

          public void close()
                     throws XPathException

      Finish evaluating the expression.
      Specified by:
        `close` in interface `Receiver`
      Overrides:
        `close` in class `ItemFeed`
      Throws:
        `XPathException` - if a dynamic error occurs

    - #### dynamicError

          public void dynamicError​(XPathException err)
                            throws XPathException

      Description copied from class: `ItemFeed`
      Report a dynamic error. This requires searching up the "feed" pipeline to see if there is a try/catch expression interested in being notified of this error; if there is none, the error is thrown as an exception
      Overrides:
        `dynamicError` in class `ItemFeed`
      Parameters:
        `err` - the exception representing the dynamic error
      Throws:
        `XPathException` - if there is no try/catch expression wanting to catch this error