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## org.opencyc.xml
Class XMLWriter

    java.lang.Object
      |
      +--org.opencyc.xml.XMLWriter

Direct Known Subclasses:
  XMLFileWriter, XMLPrintWriter, XMLStringWriter

public abstract class XMLWriter
extends java.lang.Object

Implements an XMLWriter with facilities for surrounding data elements with tags appropriately named and indented.

Author:
  Stefano Bertolo

  Copyright 2001 Cycorp, Inc., license is open source GNU LGPL.

  the license

  www.opencyc.org

  OpenCyc at SourceForge

  THIS SOFTWARE AND KNOWLEDGE BASE CONTENT ARE PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OPENCYC ORGANIZATION OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE AND KNOWLEDGE BASE CONTENT, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

Constructor Summary
`XMLWriter()`

Method Summary
`abstract void` | `close()` Closes the `XMLWriter`.
`abstract void` | `flush()` Flushes the `XMLWriter`.
`int` | `getIndentLength()` Returns the length of the current value of @see #indentString.
`abstract void` | `indentPrint(java.lang.String string, int indent, boolean relative)` Prints a string to this `XMLWriter` indenting it by the number of spaces indicated by @see #indent either relative to the current indentation level (if @see #relative is `true`) or with respect to the beginning of the line (if @see #relative is `false`).
`void` | `indentPrintln(java.lang.String string, int indent, boolean relative)` Prints a string and terminates the line.
`void` | `indentPrintSafe(java.lang.String string, int indent, boolean relative)` Prints a string to this `XMLWriter` after replacing all the reserved XML characters with the appropriate XML entity references indenting it by the number of spaces indicated by @see #indent either relative to the current indentation level (if @see #relative is `true`) or with respect to the beginning of the line (if @see #relative is `false`).
`void` | `indentPrintSafeln(java.lang.String string, int indent, boolean relative)` Prints a string after replacing all the reserved XML characters with the appropriate XML entity references and terminates the line.
`static java.lang.String` | `introduceXMLEntities(java.lang.String inputString)` Replaces all occurences of reserved characters <, &, >, ", ' with the predefined XML entities <, &, >, ", '
`abstract void` | `print(java.lang.String string)` Prints @see #string to this `XMLWriter`.
`void` | `printSafe(java.lang.String string)` Prints @see #string to this `XMLWriter` after performing all the appropriate substitutions of XML reserved characters.
`void` | `printXMLAtomicTag(java.lang.String tag, int indent, boolean relative)` Prints to this `XMLWriter` an atomic XML tag with no attributes.
`void` | `printXMLAtomicTag(java.lang.String tag, java.util.ListIterator attributesIterator, int indent, boolean relative)` Prints to this `XMLWriter` an atomic XML tag with attributes.
`void` | `printXMLAtomicTag(java.lang.String tag, java.lang.String attributeName, java.lang.String attributeValue, int indent, boolean relative, boolean newline)` Prints to this `XMLWriter` an atomic XML tag with a single attribute.
`void` | `printXMLEndTag(java.lang.String tag)` Prints to this `XMLWriter` an XML end tag.
`void` | `printXMLEndTag(java.lang.String tag, int indent, boolean relative)` Prints to this `XMLWriter` an XML end tag.
`void` | `printXMLStartTag(java.lang.String tag, int indent, boolean relative)`
`void` | `printXMLStartTag(java.lang.String tag, int indent, boolean relative, boolean newline)` Prints to this `XMLWriter` an XML start tag with no attributes.
`void` | `printXMLStartTag(java.lang.String tag, java.util.ListIterator attributesIterator, int indent, boolean relative, boolean newline)` Prints to this `XMLWriter` an XML start tag with attributes.
`void` | `printXMLStartTag(java.lang.String tag, java.lang.String attributeName, java.lang.String attributeValue, int indent, boolean relative, boolean newline)` Prints to this `XMLWriter` an XML start tag with a single attribute.
`void` | `resetIndent()` Resets the indentationof the `XMLWriter` to its default value.
`void` | `setIndent(int indent, boolean relative)` Sets the length of the indentation of the XMLFileWriter object.

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

Constructor Detail

### XMLWriter

    public XMLWriter()

Method Detail

### introduceXMLEntities

    public static java.lang.String introduceXMLEntities(java.lang.String inputString)

  Replaces all occurences of reserved characters <, &, >, ", ' with the predefined XML entities <, &, >, ", '
  Parameters:
    `inputString` - a string to be checked for the occurrence of reserved characters.
  Returns:
    a new string with all the reserved characters replaced by the appropriate XML Entities.

### setIndent

    public void setIndent(int indent,
                          boolean relative)
                   throws java.lang.RuntimeException

  Sets the length of the indentation of the XMLFileWriter object. If relative = false the indentation will be a string consisting of the number of spaces specified by the `indent' parameter. If relative = true then the current indentation is augmented or decreased by the number of spaces specified by the `indent' parameter.
  Parameters:
    `indent` - the number of spaces that constitute the indentation.
    `relative` - determines whether indentation should be relative to the current level of indentation -- `relative = true` -- or else absolute -- `relative = false`.

### resetIndent

    public void resetIndent()

  Resets the indentationof the `XMLWriter` to its default value.

### getIndentLength

    public int getIndentLength()

  Returns the length of the current value of @see #indentString.

### flush

    public abstract void flush()
                        throws java.io.IOException

  Flushes the `XMLWriter`.

### close

    public abstract void close()
                        throws java.io.IOException

  Closes the `XMLWriter`.

### print

    public abstract void print(java.lang.String string)
                        throws java.io.IOException

  Prints @see #string to this `XMLWriter`.
  Parameters:
    `string` - the string to be printed.
  Throws:
    `java.io.IOException` - if the `XMLWriter` cannot print to the file specified.

### printSafe

    public void printSafe(java.lang.String string)
                   throws java.io.IOException

  Prints @see #string to this `XMLWriter` after performing all the appropriate substitutions of XML reserved characters.
  Parameters:
    `string` - the string to be printed.
  Throws:
    `java.io.IOException` - if the `XMLWriter` cannot print to the file specified.

### indentPrint

    public abstract void indentPrint(java.lang.String string,
                                     int indent,
                                     boolean relative)
                              throws java.io.IOException

  Prints a string to this `XMLWriter` indenting it by the number of spaces indicated by @see #indent either relative to the current indentation level (if @see #relative is `true`) or with respect to the beginning of the line (if @see #relative is `false`).
  Parameters:
    `string` - the string to be printed.
    `indent` - the number of spaces by which the string needs to be indented.
    `relative` - id `true` the string is further indented with respect to the current indentation level, if `false` is indented with respect to the beginning of the line.

### indentPrintSafe

    public void indentPrintSafe(java.lang.String string,
                                int indent,
                                boolean relative)
                         throws java.io.IOException

  Prints a string to this `XMLWriter` after replacing all the reserved XML characters with the appropriate XML entity references indenting it by the number of spaces indicated by @see #indent either relative to the current indentation level (if @see #relative is `true`) or with respect to the beginning of the line (if @see #relative is `false`).
  Parameters:
    `string` - the string to be printed.
    `indent` - the number of spaces by which the string needs to be indented.
    `relative` - id `true` the string is further indented with respect to the current indentation level, if `false` is indented with respect to the beginning of the line.

### indentPrintln

    public void indentPrintln(java.lang.String string,
                              int indent,
                              boolean relative)
                       throws java.io.IOException

  Prints a string and terminates the line. The string is printed to this `XMLWriter` and indented by the number of spaces indicated by @see #indent either relative to the current indentation level (if @see #relative is `true`) or with respect to the beginning of the line (if @see #relative is `false`).
  Parameters:
    `string` - the string to be printed.
    `indent` - the number of spaces by which the string needs to be indented.
    `relative` - id `true` the string is further indented with respect to the current indentation level, if `false` is indented with respect to the beginning of the line.

### indentPrintSafeln

    public void indentPrintSafeln(java.lang.String string,
                                  int indent,
                                  boolean relative)
                           throws java.io.IOException

  Prints a string after replacing all the reserved XML characters with the appropriate XML entity references and terminates the line. The string is printed to this `XMLWriter` and indented by the number of spaces indicated by @see #indent either relative to the current indentation level (if @see #relative is `true`) or with respect to the beginning of the line (if @see #relative is `false`).
  Parameters:
    `string` - the string to be printed.
    `indent` - the number of spaces by which the string needs to be indented.
    `relative` - id `true` the string is further indented with respect to the current indentation level, if `false` is indented with respect to the beginning of the line.

### printXMLAtomicTag

    public void printXMLAtomicTag(java.lang.String tag,
                                  int indent,
                                  boolean relative)
                           throws java.io.IOException

  Prints to this `XMLWriter` an atomic XML tag with no attributes. The tag is indented by @see #indent spaces either from the beginning of the line (if @see #relative is `false`) or relative to the current indentation level(if @see #relative is `true`).
  Parameters:
    `tag` - the name of the XML tag.
    `indent` - the number of spaces by which the tag needs to be indented.
    `relative` - specifies whether the indentation is from the beginning of the line (if @see #relative is `false`) or from the current level of indentation (if @see #relative is `true`).

### printXMLAtomicTag

    public void printXMLAtomicTag(java.lang.String tag,
                                  java.util.ListIterator attributesIterator,
                                  int indent,
                                  boolean relative)
                           throws java.io.IOException

  Prints to this `XMLWriter` an atomic XML tag with attributes. The tag is indented by @see #indent spaces either from the beginning of the line (if @see #relative is `false`) or relative to the current indentation level(if @see #relative is `true`).
  Parameters:
    `tag` - the name of the XML tag.
    `attributesIterator` - an iterator over a list of attribute/value `Pair`s.
    `indent` - the number of spaces by which the tag needs to be indented.
    `relative` - specifies whether the indentation is from the beginning of the line (if @see #relative is `false`) or from the current level of indentation (if @see #relative is `true`).

### printXMLStartTag

    public void printXMLStartTag(java.lang.String tag,
                                 int indent,
                                 boolean relative)
                          throws java.io.IOException

### printXMLAtomicTag

    public void printXMLAtomicTag(java.lang.String tag,
                                  java.lang.String attributeName,
                                  java.lang.String attributeValue,
                                  int indent,
                                  boolean relative,
                                  boolean newline)
                           throws java.io.IOException

  Prints to this `XMLWriter` an atomic XML tag with a single attribute. The tag is indented by @see #indent spaces either from the beginning of the line (if @see #relative is `false`) or relative to the current indentation level(if @see #relative is `true`).
  Parameters:
    `tag` - the name of the XML tag.
    `attributeName` - the name of the attribute.
    `attributeValue` - the value of the attribute.
    `indent` - the number of spaces by which the tag needs to be indented.
    `relative` - specifies whether the indentation is from the beginning of the line (if @see #relative is `false`) or from the current level of indentation (if @see #relative is `true`).
    `newline` - specifies whether the line should be terminated after the tag has been printed

### printXMLStartTag

    public void printXMLStartTag(java.lang.String tag,
                                 int indent,
                                 boolean relative,
                                 boolean newline)
                          throws java.io.IOException

  Prints to this `XMLWriter` an XML start tag with no attributes. The tag is indented by @see #indent spaces either from the beginning of the line (if @see #relative is `false`) or relative to the current indentation level(if @see #relative is `true`).
  Parameters:
    `tag` - the name of the XML tag.
    `indent` - the number of spaces by which the tag needs to be indented.
    `relative` - specifies whether the indentation is from the beginning of the line (if @see #relative is `false`) or from the current level of indentation (if @see #relative is `true`).
    `newline` - specifies whether the line should be terminated after the tag has been printed

### printXMLStartTag

    public void printXMLStartTag(java.lang.String tag,
                                 java.util.ListIterator attributesIterator,
                                 int indent,
                                 boolean relative,
                                 boolean newline)
                          throws java.io.IOException

  Prints to this `XMLWriter` an XML start tag with attributes. The tag is indented by @see #indent spaces either from the beginning of the line (if @see #relative is `false`) or relative to the current indentation level(if @see #relative is `true`).
  Parameters:
    `tag` - the name of the XML tag.
    `attributesIterator` - an iterator over a list of attribute/value
    `indent` - the number of spaces by which the tag needs to be indented.
    `relative` - specifies whether the indentation is from the beginning of the line (if @see #relative is `false`) or from the current level of indentation (if @see #relative is `true`).
    `newline` - specifies whether the line should be terminated after the tag has been printed

### printXMLStartTag

    public void printXMLStartTag(java.lang.String tag,
                                 java.lang.String attributeName,
                                 java.lang.String attributeValue,
                                 int indent,
                                 boolean relative,
                                 boolean newline)
                          throws java.io.IOException

  Prints to this `XMLWriter` an XML start tag with a single attribute. The tag is indented by @see #indent spaces either from the beginning of the line (if @see #relative is `false`) or relative to the current indentation level(if @see #relative is `true`).
  Parameters:
    `tag` - the name of the XML tag.
    `attributesName` - the name of the attribute.
    `attributesValue` - the value of the attribute.
    `indent` - the number of spaces by which the tag needs to be indented.
    `relative` - specifies whether the indentation is from the beginning of the line (if @see #relative is `false`) or from the current level of indentation (if @see #relative is `true`).
    `newline` - specifies whether the line should be terminated after the tag has been printed

### printXMLEndTag

    public void printXMLEndTag(java.lang.String tag,
                               int indent,
                               boolean relative)
                        throws java.io.IOException

  Prints to this `XMLWriter` an XML end tag. The tag is indented by @see #indent spaces either from the beginning of the line (if @see #relative is `false`) or relative to the current indentation level(if @see #relative is `true`).
  Parameters:
    `tag` - the name of the XML tag.
    `indent` - the number of spaces by which the tag needs to be indented.
    `relative` - specifies whether the indentation is from the beginning of the line (if @see #relative is `false`) or from the current level of indentation (if @see #relative is `true`).

### printXMLEndTag

    public void printXMLEndTag(java.lang.String tag)
                        throws java.io.IOException

  Prints to this `XMLWriter` an XML end tag.
  Parameters:
    `tag` - the name of the XML tag.

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