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## org.biojava.utils.xml
Class PrettyXMLWriter

    java.lang.Object
      org.biojava.utils.xml.PrettyXMLWriter

All Implemented Interfaces:
  XMLWriter

    public class PrettyXMLWriter

extends Object
implements XMLWriter

Implementation of XMLWriter which emits nicely formatted documents to a PrintWriter.

Since:
  1.3
Author:
  Thomas Down

Constructor Summary
`PrettyXMLWriter(PrintWriter writer)`

Method Summary
`void` | `attribute(String qName, String value)` Add an un-qualified attribute to an element.
`void` | `attribute(String nsURI, String localName, String value)` Add an attribute to an element.
`void` | `close()` Close this XMLWriter, and it's underlying stream.
`void` | `closeTag(String qName)` Closes an un-qualified element.
`void` | `closeTag(String nsURI, String localName)` Closes an element
`void` | `declareNamespace(String nsURI, String prefixHint)` Hints that a namespace is going to be used in a sub-tree.
`protected void` | `numericalEntity(char c)`
`void` | `openTag(String qName)` Open a new unqualified XML tag.
`void` | `openTag(String nsURI, String localName)` Open a new namespace-qualified XML tag.
`void` | `print(String data)` Prints some textual content in an element.
`protected void` | `printAttributeValue(String data)`
`protected void` | `printChars(String data)`
`void` | `println(String data)` Prints some textual content, terminated with a newline character.
`void` | `printRaw(String data)` Send raw data to the stream.
`protected void` | `writeIndent()`

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

Constructor Detail

### PrettyXMLWriter

    public PrettyXMLWriter(PrintWriter writer)

Method Detail

### declareNamespace

    public void declareNamespace(String nsURI,
                                 String prefixHint)
                          throws IOException

  Description copied from interface: `XMLWriter`
  Hints that a namespace is going to be used in a sub-tree. Use this method to avoid namespaces that are used only in leaf-nodes of a tree being re-defined every time they are used. The XMLWriter will generally try to use the suggested prefix for this namespace, but there is no guarentee of this. In particular, if the namespace is already in use, the current prefix will still be used. Similarly if the suggested prefix has already been used for another namespace, a new one will be auto-generated.

  Specified by:
    `declareNamespace` in interface `XMLWriter`
  Parameters:
    `nsURI` - The namespace to declare
    `prefixHint` - A suggested prefix-string for this namespace.
  Throws:
    `IOException`

### writeIndent

    protected void writeIndent()
                        throws IOException

  Throws:
    `IOException`

### openTag

    public void openTag(String nsURI,
                        String localName)
                 throws IOException

  Description copied from interface: `XMLWriter`
  Open a new namespace-qualified XML tag.

  Specified by:
    `openTag` in interface `XMLWriter`
  Parameters:
    `nsURI` - A URI for the namespace to use
    `localName` - The name of the tag
  Throws:
    `IOException`

### openTag

    public void openTag(String qName)
                 throws IOException

  Description copied from interface: `XMLWriter`
  Open a new unqualified XML tag. This may also be used if you want to do namespace management yourself, independantly of the XMLWriter

  Specified by:
    `openTag` in interface `XMLWriter`
  Parameters:
    `qName` - The name of the tag.
  Throws:
    `IOException`

### attribute

    public void attribute(String nsURI,
                          String localName,
                          String value)
                   throws IOException

  Description copied from interface: `XMLWriter`
  Add an attribute to an element. This will throw an exception if it's not called immediately after an `openTag` command.

  Specified by:
    `attribute` in interface `XMLWriter`
  Parameters:
    `nsURI` - A URI for the namespace to use
    `localName` - The name of the attribute
    `value` - The textual value of the attribute
  Throws:
    `IOException`

### attribute

    public void attribute(String qName,
                          String value)
                   throws IOException

  Description copied from interface: `XMLWriter`
  Add an un-qualified attribute to an element. This will throw an exception if it's not called immediately after an `openTag` command.

  Specified by:
    `attribute` in interface `XMLWriter`
  Parameters:
    `qName` - The name of the attribute to set
    `value` - The textual value of the attribute
  Throws:
    `IOException`

### closeTag

    public void closeTag(String nsURI,
                         String localName)
                  throws IOException

  Description copied from interface: `XMLWriter`
  Closes an element

  Specified by:
    `closeTag` in interface `XMLWriter`
  Parameters:
    `nsURI` - A URI for the namespace to use
    `localName` - The name of the tag
  Throws:
    `IOException`

### closeTag

    public void closeTag(String qName)
                  throws IOException

  Description copied from interface: `XMLWriter`
  Closes an un-qualified element.

  Specified by:
    `closeTag` in interface `XMLWriter`
  Parameters:
    `qName` - The tag name
  Throws:
    `IOException`

### println

    public void println(String data)
                 throws IOException

  Description copied from interface: `XMLWriter`
  Prints some textual content, terminated with a newline character.

  Specified by:
    `println` in interface `XMLWriter`
  Throws:
    `IOException`

### print

    public void print(String data)
               throws IOException

  Description copied from interface: `XMLWriter`
  Prints some textual content in an element.

  Specified by:
    `print` in interface `XMLWriter`
  Throws:
    `IOException`

### printRaw

    public void printRaw(String data)
                  throws IOException

  Description copied from interface: `XMLWriter`
  Send raw data to the stream. Mainly useful for things like DOCTYPE declarations. Use with care!

  Specified by:
    `printRaw` in interface `XMLWriter`
  Parameters:
    `data` - a string of data to include verbatim in the XML stream
  Throws:
    `IOException`

### printChars

    protected void printChars(String data)
                       throws IOException

  Throws:
    `IOException`

### printAttributeValue

    protected void printAttributeValue(String data)
                                throws IOException

  Throws:
    `IOException`

### numericalEntity

    protected void numericalEntity(char c)
                            throws IOException

  Throws:
    `IOException`

### close

    public void close()
               throws IOException

  Description copied from interface: `XMLWriter`
  Close this XMLWriter, and it's underlying stream.

  Specified by:
    `close` in interface `XMLWriter`
  Throws:
    `IOException`

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