org.apache.xalan.lib

## Class NodeInfo

- java.lang.Object
- - org.apache.xalan.lib.NodeInfo

-     public class NodeInfo
      extends java.lang.Object

  `NodeInfo` defines a set of XSLT extension functions to be used from stylesheets.
  Since:
    May 24, 2001
  Author:
    Ovidiu Predescu

- - ### Constructor Summary

    Constructors
    Constructor and Description
    `NodeInfo()`

  - ### Method Summary

    Methods
    Modifier and Type | Method and Description
    --- | ---
    `static int` | `columnNumber(ExpressionContext context)` `columnNumber` returns the column number of the current context node.
    `static int` | `columnNumber(NodeList nodeList)` `columnNumber` returns the column number of the node passed as argument.
    `static int` | `lineNumber(ExpressionContext context)` `lineNumber` returns the line number of the current context node.
    `static int` | `lineNumber(NodeList nodeList)` `lineNumber` returns the line number of the node passed as argument.
    `static java.lang.String` | `publicId(ExpressionContext context)` `publicId` returns the public identifier of the current context node.
    `static java.lang.String` | `publicId(NodeList nodeList)` `publicId` returns the public identifier of the node passed as argument.
    `static java.lang.String` | `systemId(ExpressionContext context)` `systemId` returns the system id of the current context node.
    `static java.lang.String` | `systemId(NodeList nodeList)` `systemId` returns the system id of the node passed as argument.

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

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

- - ### Constructor Detail

    - #### NodeInfo

          public NodeInfo()

  - ### Method Detail

    - #### systemId

          public static java.lang.String systemId(ExpressionContext context)

      `systemId` returns the system id of the current context node.
      Parameters:
        `context` - an `ExpressionContext` value
      Returns:
        a `String` value

    - #### systemId

          public static java.lang.String systemId(NodeList nodeList)

      `systemId` returns the system id of the node passed as argument. If a node set is passed as argument, the system id of the first node in the set is returned.
      Parameters:
        `nodeList` - a `NodeList` value
      Returns:
        a `String` value

    - #### publicId

          public static java.lang.String publicId(ExpressionContext context)

      `publicId` returns the public identifier of the current context node. Xalan does not currently record this value, and will return null.
      Parameters:
        `context` - an `ExpressionContext` value
      Returns:
        a `String` value

    - #### publicId

          public static java.lang.String publicId(NodeList nodeList)

      `publicId` returns the public identifier of the node passed as argument. If a node set is passed as argument, the public identifier of the first node in the set is returned. Xalan does not currently record this value, and will return null.
      Parameters:
        `nodeList` - a `NodeList` value
      Returns:
        a `String` value

    - #### lineNumber

          public static int lineNumber(ExpressionContext context)

      `lineNumber` returns the line number of the current context node. NOTE: Xalan does not normally record location information for each node. To obtain it, you must set the custom TrAX attribute "http://xml.apache.org/xalan/features/source_location" true in the TransformerFactory before generating the Transformer and executing the stylesheet. Storage cost per node will be noticably increased in this mode.
      Parameters:
        `context` - an `ExpressionContext` value
      Returns:
        an `int` value. This may be -1 to indicate that the line number is not known.

    - #### lineNumber

          public static int lineNumber(NodeList nodeList)

      `lineNumber` returns the line number of the node passed as argument. If a node set is passed as argument, the line number of the first node in the set is returned. NOTE: Xalan does not normally record location information for each node. To obtain it, you must set the custom TrAX attribute "http://xml.apache.org/xalan/features/source_location" true in the TransformerFactory before generating the Transformer and executing the stylesheet. Storage cost per node will be noticably increased in this mode.
      Parameters:
        `nodeList` - a `NodeList` value
      Returns:
        an `int` value. This may be -1 to indicate that the line number is not known.

    - #### columnNumber

          public static int columnNumber(ExpressionContext context)

      `columnNumber` returns the column number of the current context node. NOTE: Xalan does not normally record location information for each node. To obtain it, you must set the custom TrAX attribute "http://xml.apache.org/xalan/features/source_location" true in the TransformerFactory before generating the Transformer and executing the stylesheet. Storage cost per node will be noticably increased in this mode.
      Parameters:
        `context` - an `ExpressionContext` value
      Returns:
        an `int` value. This may be -1 to indicate that the column number is not known.

    - #### columnNumber

          public static int columnNumber(NodeList nodeList)

      `columnNumber` returns the column number of the node passed as argument. If a node set is passed as argument, the line number of the first node in the set is returned. NOTE: Xalan does not normally record location information for each node. To obtain it, you must set the custom TrAX attribute "http://xml.apache.org/xalan/features/source_location" true in the TransformerFactory before generating the Transformer and executing the stylesheet. Storage cost per node will be noticably increased in this mode.
      Parameters:
        `nodeList` - a `NodeList` value
      Returns:
        an `int` value. This may be -1 to indicate that the column number is not known.

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