Package net.sf.saxon.dom

## Class TextOverNodeInfo

- java.lang.Object
- - net.sf.saxon.dom.NodeOverNodeInfo
  - - net.sf.saxon.dom.TextOverNodeInfo

- All Implemented Interfaces:
    `org.w3c.dom.CharacterData`, `org.w3c.dom.Comment`, `org.w3c.dom.Node`, `org.w3c.dom.Text`
  Direct Known Subclasses:
    `TextOverAttrInfo`

      public class TextOverNodeInfo
      extends NodeOverNodeInfo
      implements org.w3c.dom.Text, org.w3c.dom.Comment

  This class is an implementation of the DOM Text and Comment interfaces that wraps a Saxon NodeInfo representation of a text or comment node.

- - ### Field Summary

    - ### Fields inherited from class net.sf.saxon.dom.NodeOverNodeInfo

      `node`

    - ### Fields inherited from interface org.w3c.dom.Node

      `ATTRIBUTE_NODE, CDATA_SECTION_NODE, COMMENT_NODE, DOCUMENT_FRAGMENT_NODE, DOCUMENT_NODE, DOCUMENT_POSITION_CONTAINED_BY, DOCUMENT_POSITION_CONTAINS, DOCUMENT_POSITION_DISCONNECTED, DOCUMENT_POSITION_FOLLOWING, DOCUMENT_POSITION_IMPLEMENTATION_SPECIFIC, DOCUMENT_POSITION_PRECEDING, DOCUMENT_TYPE_NODE, ELEMENT_NODE, ENTITY_NODE, ENTITY_REFERENCE_NODE, NOTATION_NODE, PROCESSING_INSTRUCTION_NODE, TEXT_NODE`

  - ### Constructor Summary

    Constructors
    Constructor | Description
    --- | ---
    `TextOverNodeInfo()` |

  - ### Method Summary

    All Methods Instance Methods Concrete Methods
    Modifier and Type | Method | Description
    --- | --- | ---
    `void` | `appendData​(java.lang.String arg)` | Append the string to the end of the character data of the node.
    `void` | `deleteData​(int offset, int count)` | Remove a range of 16-bit units from the node.
    `java.lang.String` | `getData()` | Get the character data of a Text or Comment node.
    `int` | `getLength()` | Get the length of a Text or Comment node.
    `java.lang.String` | `getWholeText()` | Returns all text of `Text` nodes logically-adjacent text nodes to this node, concatenated in document order.
    `void` | `insertData​(int offset, java.lang.String arg)` | Insert a string at the specified character offset.
    `boolean` | `isElementContentWhitespace()` | Returns whether this text node contains element content whitespace, often abusively called "ignorable whitespace".
    `void` | `replaceData​(int offset, int count, java.lang.String arg)` | Replace the characters starting at the specified 16-bit unit offset with the specified string.
    `org.w3c.dom.Text` | `replaceWholeText​(java.lang.String content)` | Replaces the text of the current node and all logically-adjacent text nodes with the specified text.
    `void` | `setData​(java.lang.String data)` | Set the character data of a Text or Comment node.
    `org.w3c.dom.Text` | `splitText​(int offset)` | Break this node into two nodes at the specified offset, keeping both in the tree as siblings.
    `java.lang.String` | `substringData​(int offset, int count)` | Extract a range of data from a Text or Comment node.

    - ### Methods inherited from class net.sf.saxon.dom.NodeOverNodeInfo

      `appendChild, cloneNode, compareDocumentPosition, disallowUpdate, equals, getAttributes, getBaseURI, getChildNodes, getFeature, getFirstChild, getLastChild, getLocalName, getNamespaceURI, getNextSibling, getNodeName, getNodeType, getNodeValue, getOwnerDocument, getParentNode, getPrefix, getPreviousSibling, getTextContent, getUnderlyingNodeInfo, getUserData, hasAttributes, hasChildNodes, hashCode, insertBefore, isDefaultNamespace, isEqualNode, isSameNode, isSupported, lookupNamespaceURI, lookupPrefix, normalize, removeChild, replaceChild, setNodeValue, setPrefix, setTextContent, setUserData, wrap`

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

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

    - ### Methods inherited from interface org.w3c.dom.Node

      `appendChild, cloneNode, compareDocumentPosition, getAttributes, getBaseURI, getChildNodes, getFeature, getFirstChild, getLastChild, getLocalName, getNamespaceURI, getNextSibling, getNodeName, getNodeType, getNodeValue, getOwnerDocument, getParentNode, getPrefix, getPreviousSibling, getTextContent, getUserData, hasAttributes, hasChildNodes, insertBefore, isDefaultNamespace, isEqualNode, isSameNode, isSupported, lookupNamespaceURI, lookupPrefix, normalize, removeChild, replaceChild, setNodeValue, setPrefix, setTextContent, setUserData`

- - ### Constructor Detail

    - #### TextOverNodeInfo

          public TextOverNodeInfo()

  - ### Method Detail

    - #### getData

          public java.lang.String getData()

      Get the character data of a Text or Comment node. DOM method.
      Specified by:
        `getData` in interface `org.w3c.dom.CharacterData`

    - #### setData

          public void setData​(java.lang.String data)
                       throws org.w3c.dom.DOMException

      Set the character data of a Text or Comment node. DOM method: always fails, Saxon tree is immutable.
      Specified by:
        `setData` in interface `org.w3c.dom.CharacterData`
      Throws:
        `org.w3c.dom.DOMException`

    - #### getLength

          public int getLength()

      Get the length of a Text or Comment node. DOM method.
      Specified by:
        `getLength` in interface `org.w3c.dom.CharacterData`

    - #### substringData

          public java.lang.String substringData​(int offset,
                                                int count)
                                         throws org.w3c.dom.DOMException

      Extract a range of data from a Text or Comment node. DOM method.
      Specified by:
        `substringData` in interface `org.w3c.dom.CharacterData`
      Parameters:
        `offset` - Start offset of substring to extract.
        `count` - The number of 16-bit units to extract.
      Returns:
        The specified substring. If the sum of `offset` and `count` exceeds the `length` , then all 16-bit units to the end of the data are returned.
      Throws:
        `org.w3c.dom.DOMException` - INDEX_SIZE_ERR: Raised if the specified `offset` is negative or greater than the number of 16-bit units in `data` , or if the specified `count` is negative.

    - #### appendData

          public void appendData​(java.lang.String arg)
                          throws org.w3c.dom.DOMException

      Append the string to the end of the character data of the node. DOM method: always fails.
      Specified by:
        `appendData` in interface `org.w3c.dom.CharacterData`
      Parameters:
        `arg` - The `DOMString` to append.
      Throws:
        `org.w3c.dom.DOMException` - NO_MODIFICATION_ALLOWED_ERR: Raised if this node is readonly.

    - #### insertData

          public void insertData​(int offset,
                                 java.lang.String arg)
                          throws org.w3c.dom.DOMException

      Insert a string at the specified character offset. DOM method: always fails.
      Specified by:
        `insertData` in interface `org.w3c.dom.CharacterData`
      Parameters:
        `offset` - The character offset at which to insert.
        `arg` - The `DOMString` to insert.
      Throws:
        `java.lang.UnsupportedOperationException` - always
        `org.w3c.dom.DOMException`

    - #### deleteData

          public void deleteData​(int offset,
                                 int count)
                          throws org.w3c.dom.DOMException

      Remove a range of 16-bit units from the node. DOM method: always fails.
      Specified by:
        `deleteData` in interface `org.w3c.dom.CharacterData`
      Parameters:
        `offset` - The offset from which to start removing.
        `count` - The number of 16-bit units to delete.
      Throws:
        `java.lang.UnsupportedOperationException` - always
        `org.w3c.dom.DOMException`

    - #### replaceData

          public void replaceData​(int offset,
                                  int count,
                                  java.lang.String arg)
                           throws org.w3c.dom.DOMException

      Replace the characters starting at the specified 16-bit unit offset with the specified string. DOM method: always fails.
      Specified by:
        `replaceData` in interface `org.w3c.dom.CharacterData`
      Parameters:
        `offset` - The offset from which to start replacing.
        `count` - The number of 16-bit units to replace.
        `arg` - The `DOMString` with which the range must be replaced.
      Throws:
        `org.w3c.dom.DOMException` - NO_MODIFICATION_ALLOWED_ERR: Raised if this node is readonly.

    - #### splitText

          public org.w3c.dom.Text splitText​(int offset)
                                     throws org.w3c.dom.DOMException

      Break this node into two nodes at the specified offset, keeping both in the tree as siblings. DOM method, always fails.
      Specified by:
        `splitText` in interface `org.w3c.dom.Text`
      Parameters:
        `offset` - The 16-bit unit offset at which to split, starting from 0.
      Returns:
        The new node, of the same type as this node.
      Throws:
        `org.w3c.dom.DOMException`

    - #### replaceWholeText

          public org.w3c.dom.Text replaceWholeText​(java.lang.String content)
                                            throws org.w3c.dom.DOMException

      Replaces the text of the current node and all logically-adjacent text nodes with the specified text. All logically-adjacent text nodes are removed including the current node unless it was the recipient of the replacement text.
      This method returns the node which received the replacement text. The returned node is:
      - `null`, when the replacement text is the empty string;
      - the current node, except when the current node is read-only;
      - a new `Text` node of the same type ( `Text` or `CDATASection`) as the current node inserted at the location of the replacement.
      For instance, in the above example calling `replaceWholeText` on the `Text` node that contains "bar" with "yo" in argument results in the following:
      Where the nodes to be removed are read-only descendants of an `EntityReference`, the `EntityReference` must be removed instead of the read-only nodes. If any `EntityReference` to be removed has descendants that are not `EntityReference`, `Text`, or `CDATASection` nodes, the `replaceWholeText` method must fail before performing any modification of the document, raising a `DOMException` with the code `NO_MODIFICATION_ALLOWED_ERR`.
      For instance, in the example below calling `replaceWholeText` on the `Text` node that contains "bar" fails, because the `EntityReference` node "ent" contains an `Element` node which cannot be removed.
      Specified by:
        `replaceWholeText` in interface `org.w3c.dom.Text`
      Parameters:
        `content` - The content of the replacing `Text` node.
      Returns:
        The `Text` node created with the specified content.
      Throws:
        `org.w3c.dom.DOMException` - NO_MODIFICATION_ALLOWED_ERR: Raised if one of the `Text` nodes being replaced is readonly.
      Since:
        DOM Level 3

    - #### isElementContentWhitespace

          public boolean isElementContentWhitespace()

      Returns whether this text node contains element content whitespace, often abusively called "ignorable whitespace". The text node is determined to contain whitespace in element content during the load of the document or if validation occurs while using `Document.normalizeDocument()`.
      Specified by:
        `isElementContentWhitespace` in interface `org.w3c.dom.Text`
      Since:
        DOM Level 3

    - #### getWholeText

          public java.lang.String getWholeText()

      Returns all text of `Text` nodes logically-adjacent text nodes to this node, concatenated in document order.
      For instance, in the example below `wholeText` on the `Text` node that contains "bar" returns "barfoo", while on the `Text` node that contains "foo" it returns "barfoo".
      Specified by:
        `getWholeText` in interface `org.w3c.dom.Text`
      Since:
        DOM Level 3