Package org.jibx.schema

Class TreeWalker

  • public class TreeWalker
extends java.lang.Object
    Handles walking the tree structure of schema model. This traverses the structure defined by the nesting of elements and schema references in the XML representation.
    Author:
    Dennis M. Sosnoski

    • Field Detail

      • s_logger

        private static final Logger s_logger
        Logger for class.

      • m_skipSet

        private final ISkipElements m_skipSet
        Selector for elements to be skipped when walking tree (null if unused).

      • m_schemaListener

        private final ISchemaListener m_schemaListener
        Listener for entering and exiting referenced schemas. (null if unused).

    • Constructor Detail

      • TreeWalker

        public TreeWalker​(ISkipElements skip,
                  ISchemaListener listen)
        Constructor.
        Parameters:
        skip - selector for elements to be skipped (null if none skipped)
        listen - schema reference listener (null if none)

    • Method Detail

      • setLogging

        public static Level setLogging​(Level level)
        Control the logging level for this class. Since the generated logs at debug level can become huge, this gives a way for external code to provide granular control over the logging.
        Parameters:
        level -
        Returns:
        prior level

      • walkSchema

        public void walkSchema​(SchemaElement schema,
                       SchemaVisitor visitor)
        Walk entire schema model.
        Parameters:
        schema - root element of schema to be traversed
        visitor - target visitor for element notifications

      • walkElement

        public void walkElement​(SchemaBase root,
                        SchemaVisitor visitor)
        Walk schema model element tree. This recursively traverses the schema model tree rooted in the supplied element, including the element itself, notifying the visitor of each element visited during the traversal.
        Parameters:
        root - node of tree to be toured
        visitor - target visitor for element notifications

      • walkChildren

        public void walkChildren​(SchemaBase root,
                         SchemaVisitor visitor)
        Walk the descendants of a root element. This recursively traverses the schema model tree rooted in the supplied element, excluding the element itself, notifying the visitor of each element visited during the traversal.
        Parameters:
        root - node of tree to be toured
        visitor - target visitor for element notifications