org.apache.xml.serialize

## Class XMLSerializer

- java.lang.Object
- - org.apache.xml.serialize.BaseMarkupSerializer
  - - org.apache.xml.serialize.XMLSerializer

- All Implemented Interfaces:
    DOMSerializer, Serializer, org.xml.sax.ContentHandler, org.xml.sax.DocumentHandler, org.xml.sax.DTDHandler, org.xml.sax.ext.DeclHandler, org.xml.sax.ext.LexicalHandler
  Direct Known Subclasses:
    XML11Serializer

  Deprecated.
  This class was deprecated in Xerces 2.9.0. It is recommended that new applications use the DOM Level 3 LSSerializer or JAXP's Transformation API for XML (TrAX) for serializing XML. See the Xerces documentation for more information.

      public class XMLSerializer
      extends BaseMarkupSerializer

  Implements an XML serializer supporting both DOM and SAX pretty serializing. For usage instructions see `Serializer`.

  If an output stream is used, the encoding is taken from the output format (defaults to `UTF-8`). If a writer is used, make sure the writer uses the same encoding (if applies) as specified in the output format.

  The serializer supports both DOM and SAX. SAX serializing is done by firing SAX events and using the serializer as a document handler. DOM serializing is done by calling `BaseMarkupSerializer.serialize(Document)` or by using DOM Level 3 `LSSerializer` and serializing with `LSSerializer.write(org.w3c.dom.Node, org.w3c.dom.ls.LSOutput)`, `LSSerializer.writeToString(org.w3c.dom.Node)`.

  If an I/O exception occurs while serializing, the serializer will not throw an exception directly, but only throw it at the end of serializing (either DOM or SAX's `DocumentHandler.endDocument()`.

  For elements that are not specified as whitespace preserving, the serializer will potentially break long text lines at space boundaries, indent lines, and serialize elements on separate lines. Line terminators will be regarded as spaces, and spaces at beginning of line will be stripped.

  Version:
    $Revision: 704573 $ $Date: 2008-10-14 12:11:22 -0400 (Tue, 14 Oct 2008) $
  Author:
    Assaf Arkin, Rahul Srivastava, Elena Litani IBM
  See Also:
    `Serializer`

- - ### Field Summary

    Fields
    Modifier and Type | Field and Description
    --- | ---
    `protected static boolean` | `DEBUG` Deprecated.
    `protected org.apache.xerces.util.NamespaceSupport` | `fLocalNSBinder` Deprecated. stores all namespace bindings on the current element
    `protected boolean` | `fNamespacePrefixes` Deprecated. Controls whether namespace prefixes will be printed out during serialization
    `protected boolean` | `fNamespaces` Deprecated. Controls whether namespace fixup should be performed during the serialization.
    `protected org.apache.xerces.util.NamespaceSupport` | `fNSBinder` Deprecated. stores namespaces in scope
    `protected org.apache.xerces.util.SymbolTable` | `fSymbolTable` Deprecated. symbol table for serialization
    `protected static java.lang.String` | `PREFIX` Deprecated.

    - ### Fields inherited from class org.apache.xml.serialize.BaseMarkupSerializer

      `_docTypePublicId, _docTypeSystemId, _encodingInfo, _format, _indenting, _prefixes, _printer, _started, fCurrentNode, fDOMError, fDOMErrorHandler, fDOMFilter, features, fStrBuffer`

  - ### Constructor Summary

    Constructors
    Constructor and Description
    `XMLSerializer()` Deprecated. Constructs a new serializer.
    `XMLSerializer(OutputFormat format)` Deprecated. Constructs a new serializer.
    `XMLSerializer(java.io.OutputStream output, OutputFormat format)` Deprecated. Constructs a new serializer that writes to the specified output stream using the specified output format.
    `XMLSerializer(java.io.Writer writer, OutputFormat format)` Deprecated. Constructs a new serializer that writes to the specified writer using the specified output format.

  - ### Method Summary

    All Methods Instance Methods Concrete Methods Deprecated Methods
    Modifier and Type | Method and Description
    --- | ---
    `protected void` | `checkUnboundNamespacePrefixedNode(org.w3c.dom.Node node)` Deprecated. DOM Level 3: Check a node to determine if it contains unbound namespace prefixes.
    `void` | `endElement(java.lang.String tagName)` Deprecated. Receive notification of the end of an element.
    `void` | `endElement(java.lang.String namespaceURI, java.lang.String localName, java.lang.String rawName)` Deprecated. Receive notification of the end of an element.
    `void` | `endElementIO(java.lang.String namespaceURI, java.lang.String localName, java.lang.String rawName)` Deprecated.
    `protected java.lang.String` | `getEntityRef(int ch)` Deprecated. Returns the suitable entity reference for this character value, or null if no such entity exists.
    `protected void` | `printEscaped(java.lang.String source)` Deprecated. Escapes a string so it may be printed as text content or attribute value.
    `protected void` | `printText(char[] chars, int start, int length, boolean preserveSpace, boolean unescaped)` Deprecated. Called to print additional text with whitespace handling.
    `protected void` | `printText(java.lang.String text, boolean preserveSpace, boolean unescaped)` Deprecated.
    `protected void` | `printXMLChar(int ch)` Deprecated. print text data
    `boolean` | `reset()` Deprecated.
    `protected void` | `serializeElement(org.w3c.dom.Element elem)` Deprecated. Called to serialize a DOM element.
    `void` | `setNamespaces(boolean namespaces)` Deprecated. This methods turns on namespace fixup algorithm during DOM serialization.
    `void` | `setOutputFormat(OutputFormat format)` Deprecated. Specifies an output format for this serializer.
    `protected void` | `startDocument(java.lang.String rootTagName)` Deprecated. Called to serialize the document's DOCTYPE by the root element.
    `void` | `startElement(java.lang.String tagName, org.xml.sax.AttributeList attrs)` Deprecated. Receive notification of the beginning of an element.
    `void` | `startElement(java.lang.String namespaceURI, java.lang.String localName, java.lang.String rawName, org.xml.sax.Attributes attrs)` Deprecated. Receive notification of the beginning of an element.

    - ### Methods inherited from class org.apache.xml.serialize.BaseMarkupSerializer

      `asContentHandler, asDocumentHandler, asDOMSerializer, attributeDecl, characters, characters, cleanup, comment, comment, content, elementDecl, endCDATA, endDocument, endDTD, endEntity, endNonEscaping, endPrefixMapping, endPreserving, enterElementState, externalEntityDecl, fatalError, getElementState, getPrefix, ignorableWhitespace, internalEntityDecl, isDocumentState, leaveElementState, modifyDOMError, notationDecl, prepare, printCDATAText, printDoctypeURL, printEscaped, processingInstruction, processingInstructionIO, serialize, serialize, serialize, serializeNode, serializePreRoot, setDocumentLocator, setOutputByteStream, setOutputCharStream, skippedEntity, startCDATA, startDocument, startDTD, startEntity, startNonEscaping, startPrefixMapping, startPreserving, surrogates, unparsedEntityDecl`

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

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

- - ### Field Detail

    - #### DEBUG

          protected static final boolean DEBUG

      Deprecated.
      See Also:
        Constant Field Values

    - #### fNSBinder

          protected org.apache.xerces.util.NamespaceSupport fNSBinder

      Deprecated.
      stores namespaces in scope

    - #### fLocalNSBinder

          protected org.apache.xerces.util.NamespaceSupport fLocalNSBinder

      Deprecated.
      stores all namespace bindings on the current element

    - #### fSymbolTable

          protected org.apache.xerces.util.SymbolTable fSymbolTable

      Deprecated.
      symbol table for serialization

    - #### PREFIX

          protected static final java.lang.String PREFIX

      Deprecated.
      See Also:
        Constant Field Values

    - #### fNamespaces

          protected boolean fNamespaces

      Deprecated.
      Controls whether namespace fixup should be performed during the serialization. NOTE: if this field is set to true the following fields need to be initialized: fNSBinder, fLocalNSBinder, fSymbolTable, XMLSymbols.EMPTY_STRING, fXmlSymbol, fXmlnsSymbol

    - #### fNamespacePrefixes

          protected boolean fNamespacePrefixes

      Deprecated.
      Controls whether namespace prefixes will be printed out during serialization

  - ### Constructor Detail

    - #### XMLSerializer

          public XMLSerializer()

      Deprecated.
      Constructs a new serializer. The serializer cannot be used without calling `BaseMarkupSerializer.setOutputCharStream(java.io.Writer)` or `BaseMarkupSerializer.setOutputByteStream(java.io.OutputStream)` first.

    - #### XMLSerializer

          public XMLSerializer(OutputFormat format)

      Deprecated.
      Constructs a new serializer. The serializer cannot be used without calling `BaseMarkupSerializer.setOutputCharStream(java.io.Writer)` or `BaseMarkupSerializer.setOutputByteStream(java.io.OutputStream)` first.

    - #### XMLSerializer

          public XMLSerializer(java.io.Writer writer,
                               OutputFormat format)

      Deprecated.
      Constructs a new serializer that writes to the specified writer using the specified output format. If `format` is null, will use a default output format.
      Parameters:
        `writer` - The writer to use
        `format` - The output format to use, null for the default

    - #### XMLSerializer

          public XMLSerializer(java.io.OutputStream output,
                               OutputFormat format)

      Deprecated.
      Constructs a new serializer that writes to the specified output stream using the specified output format. If `format` is null, will use a default output format.
      Parameters:
        `output` - The output stream to use
        `format` - The output format to use, null for the default

  - ### Method Detail

    - #### setOutputFormat

          public void setOutputFormat(OutputFormat format)

      Deprecated.
      Description copied from interface: `Serializer`
      Specifies an output format for this serializer. It the serializer has already been associated with an output format, it will switch to the new format. This method should not be called while the serializer is in the process of serializing a document.
      Specified by:
        `setOutputFormat` in interface `Serializer`
      Overrides:
        `setOutputFormat` in class `BaseMarkupSerializer`
      Parameters:
        `format` - The output format to use

    - #### setNamespaces

          public void setNamespaces(boolean namespaces)

      Deprecated.
      This methods turns on namespace fixup algorithm during DOM serialization.
      Parameters:
        `namespaces` -
      See Also:
        `LSSerializer`

    - #### startElement

          public void startElement(java.lang.String namespaceURI,
                                   java.lang.String localName,
                                   java.lang.String rawName,
                                   org.xml.sax.Attributes attrs)
                            throws org.xml.sax.SAXException

      Deprecated.
      Description copied from interface: `org.xml.sax.ContentHandler`
      Receive notification of the beginning of an element.

      The Parser will invoke this method at the beginning of every element in the XML document; there will be a corresponding `endElement` event for every startElement event (even when the element is empty). All of the element's content will be reported, in order, before the corresponding endElement event.

      This event allows up to three name components for each element:

      1. the Namespace URI;
      2. the local name; and
      3. the qualified (prefixed) name.

      Any or all of these may be provided, depending on the values of the http://xml.org/sax/features/namespaces and the http://xml.org/sax/features/namespace-prefixes properties:

      - the Namespace URI and local name are required when the namespaces property is true (the default), and are optional when the namespaces property is false (if one is specified, both must be);
      - the qualified name is required when the namespace-prefixes property is true, and is optional when the namespace-prefixes property is false (the default).

      Note that the attribute list provided will contain only attributes with explicit values (specified or defaulted): #IMPLIED attributes will be omitted. The attribute list will contain attributes used for Namespace declarations (xmlns* attributes) only if the `http://xml.org/sax/features/namespace-prefixes` property is true (it is false by default, and support for a true value is optional).

      Like `characters()`, attribute values may have characters that need more than one `char` value.

      Parameters:
        `namespaceURI` - the Namespace URI, or the empty string if the element has no Namespace URI or if Namespace processing is not being performed
        `localName` - the local name (without prefix), or the empty string if Namespace processing is not being performed
        `rawName` - the qualified name (with prefix), or the empty string if qualified names are not available
        `attrs` - the attributes attached to the element. If there are no attributes, it shall be an empty Attributes object. The value of this object after startElement returns is undefined
      Throws:
        `org.xml.sax.SAXException` - any SAX exception, possibly wrapping another exception
      See Also:
        `ContentHandler.endElement(java.lang.String, java.lang.String, java.lang.String)`, `Attributes`, `AttributesImpl`

    - #### endElement

          public void endElement(java.lang.String namespaceURI,
                                 java.lang.String localName,
                                 java.lang.String rawName)
                          throws org.xml.sax.SAXException

      Deprecated.
      Description copied from interface: `org.xml.sax.ContentHandler`
      Receive notification of the end of an element.

      The SAX parser will invoke this method at the end of every element in the XML document; there will be a corresponding `startElement` event for every endElement event (even when the element is empty).

      For information on the names, see startElement.

      Parameters:
        `namespaceURI` - the Namespace URI, or the empty string if the element has no Namespace URI or if Namespace processing is not being performed
        `localName` - the local name (without prefix), or the empty string if Namespace processing is not being performed
        `rawName` - the qualified XML name (with prefix), or the empty string if qualified names are not available
      Throws:
        `org.xml.sax.SAXException` - any SAX exception, possibly wrapping another exception

    - #### endElementIO

          public void endElementIO(java.lang.String namespaceURI,
                                   java.lang.String localName,
                                   java.lang.String rawName)
                            throws java.io.IOException

      Deprecated.
      Throws:
        `java.io.IOException`

    - #### startElement

          public void startElement(java.lang.String tagName,
                                   org.xml.sax.AttributeList attrs)
                            throws org.xml.sax.SAXException

      Deprecated.
      Description copied from interface: `org.xml.sax.DocumentHandler`
      Receive notification of the beginning of an element.

      The Parser will invoke this method at the beginning of every element in the XML document; there will be a corresponding endElement() event for every startElement() event (even when the element is empty). All of the element's content will be reported, in order, before the corresponding endElement() event.

      If the element name has a namespace prefix, the prefix will still be attached. Note that the attribute list provided will contain only attributes with explicit values (specified or defaulted): #IMPLIED attributes will be omitted.

      Parameters:
        `tagName` - The element type name.
        `attrs` - The attributes attached to the element, if any.
      Throws:
        `org.xml.sax.SAXException` - Any SAX exception, possibly wrapping another exception.
      See Also:
        `DocumentHandler.endElement(java.lang.String)`, `AttributeList`

    - #### endElement

          public void endElement(java.lang.String tagName)
                          throws org.xml.sax.SAXException

      Deprecated.
      Description copied from interface: `org.xml.sax.DocumentHandler`
      Receive notification of the end of an element.

      The SAX parser will invoke this method at the end of every element in the XML document; there will be a corresponding startElement() event for every endElement() event (even when the element is empty).

      If the element name has a namespace prefix, the prefix will still be attached to the name.

      Parameters:
        `tagName` - The element type name
      Throws:
        `org.xml.sax.SAXException` - Any SAX exception, possibly wrapping another exception.

    - #### startDocument

          protected void startDocument(java.lang.String rootTagName)
                                throws java.io.IOException

      Deprecated.
      Called to serialize the document's DOCTYPE by the root element. The document type declaration must name the root element, but the root element is only known when that element is serialized, and not at the start of the document.

      This method will check if it has not been called before (`BaseMarkupSerializer._started`), will serialize the document type declaration, and will serialize all pre-root comments and PIs that were accumulated in the document (see `BaseMarkupSerializer.serializePreRoot()`). Pre-root will be serialized even if this is not the first root element of the document.

      Throws:
        `java.io.IOException`

    - #### serializeElement

          protected void serializeElement(org.w3c.dom.Element elem)
                                   throws java.io.IOException

      Deprecated.
      Called to serialize a DOM element. Equivalent to calling `startElement(java.lang.String, java.lang.String, java.lang.String, org.xml.sax.Attributes)`, `endElement(java.lang.String, java.lang.String, java.lang.String)` and serializing everything inbetween, but better optimized.
      Specified by:
        `serializeElement` in class `BaseMarkupSerializer`
      Parameters:
        `elem` - The element to serialize
      Throws:
        `java.io.IOException` - An I/O exception occured while serializing

    - #### getEntityRef

          protected java.lang.String getEntityRef(int ch)

      Deprecated.
      Description copied from class: `BaseMarkupSerializer`
      Returns the suitable entity reference for this character value, or null if no such entity exists. Calling this method with `'&'` will return `"&amp;"`.
      Specified by:
        `getEntityRef` in class `BaseMarkupSerializer`
      Parameters:
        `ch` - Character value
      Returns:
        Character entity name, or null

    - #### printEscaped

          protected void printEscaped(java.lang.String source)
                               throws java.io.IOException

      Deprecated.
      Description copied from class: `BaseMarkupSerializer`
      Escapes a string so it may be printed as text content or attribute value. Non printable characters are escaped using character references. Where the format specifies a deault entity reference, that reference is used (e.g. `&lt;`).
      Overrides:
        `printEscaped` in class `BaseMarkupSerializer`
      Parameters:
        `source` - The string to escape
      Throws:
        `java.io.IOException`

    - #### printXMLChar

          protected void printXMLChar(int ch)
                               throws java.io.IOException

      Deprecated.
      print text data
      Throws:
        `java.io.IOException`

    - #### printText

          protected void printText(java.lang.String text,
                                   boolean preserveSpace,
                                   boolean unescaped)
                            throws java.io.IOException

      Deprecated.
      Overrides:
        `printText` in class `BaseMarkupSerializer`
      Throws:
        `java.io.IOException`

    - #### printText

          protected void printText(char[] chars,
                                   int start,
                                   int length,
                                   boolean preserveSpace,
                                   boolean unescaped)
                            throws java.io.IOException

      Deprecated.
      Description copied from class: `BaseMarkupSerializer`
      Called to print additional text with whitespace handling. If spaces are preserved, the text is printed as if by calling `BaseMarkupSerializer.printText(String,boolean,boolean)` with a call to `Printer.breakLine()` for each new line. If spaces are not preserved, the text is broken at space boundaries if longer than the line width; Multiple spaces are printed as such, but spaces at beginning of line are removed.
      Overrides:
        `printText` in class `BaseMarkupSerializer`
      Parameters:
        `chars` - The text to print
        `start` - The start offset
        `length` - The number of characters
        `preserveSpace` - Space preserving flag
        `unescaped` - Print unescaped
      Throws:
        `java.io.IOException`

    - #### checkUnboundNamespacePrefixedNode

          protected void checkUnboundNamespacePrefixedNode(org.w3c.dom.Node node)
                                                    throws java.io.IOException

      Deprecated.
      DOM Level 3: Check a node to determine if it contains unbound namespace prefixes.
      Overrides:
        `checkUnboundNamespacePrefixedNode` in class `BaseMarkupSerializer`
      Parameters:
        `node` - The node to check for unbound namespace prefices
      Throws:
        `java.io.IOException`

    - #### reset

          public boolean reset()

      Deprecated.
      Overrides:
        `reset` in class `BaseMarkupSerializer`

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