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## org.exist.memtree
Class DOMIndexer

    java.lang.Object
      org.exist.memtree.DOMIndexer

public class DOMIndexer
extends java.lang.Object

Helper class to make a in-memory document fragment persistent. The class directly accesses the in-memory document structure and writes it into a temporary doc on the database. This is much faster than first serializing the document tree to SAX and passing it to `Collection.store(org.exist.storage.txn.Txn, org.exist.storage.DBBroker, org.exist.collections.IndexInfo, org.xml.sax.InputSource, boolean)`. As the in-memory document fragment may not be a well-formed XML doc (having more than one root element), a wrapper element is put around the content nodes.

Author:
  wolf

Field Summary
`static QName` | `ROOT_QNAME`

Constructor Summary
`DOMIndexer(DBBroker broker, Txn transaction, DocumentImpl doc, DocumentImpl targetDoc)`

Method Summary
`void` | `scan()` Scan the DOM tree once to determine its structure.
`void` | `store()` Store the nodes.

Methods inherited from class java.lang.Object
`equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Field Detail

### ROOT_QNAME

    public static final QName ROOT_QNAME

Constructor Detail

### DOMIndexer

    public DOMIndexer(DBBroker broker,
                      Txn transaction,
                      DocumentImpl doc,
                      DocumentImpl targetDoc)

Method Detail

### scan

    public void scan()
              throws EXistException

  Scan the DOM tree once to determine its structure.

  Throws:
    `EXistException`

### store

    public void store()

  Store the nodes.

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Copyright (C) Wolfgang Meier. All rights reserved.