Class ContentDetector

  • All Implemented Interfaces:
    javax.xml.transform.Result, Receiver

    public class ContentDetector
    extends ProxyReceiver
    A ContentDetector is a filter that can be added to a Receiver pipeline to note whether the current element node has children. It delays sending the startElement() event to the next Receiver in the pipeline until it is known whether the start tag is followed by children, or is followed immediately by an end tag. It then passes this information to subsequent filters in the pipeline by use of property flags.
    • Constructor Detail

      • ContentDetector

        public ContentDetector​(WatchManager nextReceiver)
    • Method Detail

      • startElement

        public void startElement​(NodeName elemName,
                                 SchemaType type,
                                 AttributeMap attributes,
                                 NamespaceMap namespaces,
                                 Location location,
                                 int properties)
                          throws XPathException
        Notify the start of an element
        Specified by:
        startElement in interface Receiver
        Overrides:
        startElement in class ProxyReceiver
        Parameters:
        elemName - the name of the element.
        type - the type annotation of the element.
        attributes - the attributes of this element
        namespaces - the in-scope namespaces of this element: generally this is all the in-scope namespaces, without relying on inheriting namespaces from parent elements
        location - an object providing information about the module, line, and column where the node originated
        properties - bit-significant properties of the element node. If there are no relevant properties, zero is supplied. The definitions of the bits are in class ReceiverOption
        Throws:
        XPathException - if an error occurs
      • characters

        public void characters​(java.lang.CharSequence chars,
                               Location locationId,
                               int properties)
                        throws XPathException
        Character data
        Specified by:
        characters in interface Receiver
        Overrides:
        characters in class ProxyReceiver
        Parameters:
        chars - The characters
        locationId - provides information such as line number and system ID.
        properties - Bit significant value. The following bits are defined:
        DISABLE_ESCAPING
        Disable escaping for this text node
        USE_CDATA
        Output as a CDATA section
        Throws:
        XPathException - if an error occurs
      • processingInstruction

        public void processingInstruction​(java.lang.String target,
                                          java.lang.CharSequence data,
                                          Location locationId,
                                          int properties)
                                   throws XPathException
        Processing Instruction
        Specified by:
        processingInstruction in interface Receiver
        Overrides:
        processingInstruction in class ProxyReceiver
        Parameters:
        target - The PI name. This must be a legal name (it will not be checked).
        data - The data portion of the processing instruction
        locationId - provides information such as line number and system ID.
        properties - Additional information about the PI.
        Throws:
        XPathException - if an error occurs
      • comment

        public void comment​(java.lang.CharSequence chars,
                            Location locationId,
                            int properties)
                     throws XPathException
        Output a comment
        Specified by:
        comment in interface Receiver
        Overrides:
        comment in class ProxyReceiver
        Parameters:
        chars - The content of the comment
        locationId - provides information such as line number and system ID.
        properties - Additional information about the comment.
        Throws:
        XPathException - if an error occurs