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Oracle® XML API Reference
10g Release 1 (10.1)

Part Number B10789-01
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CharacterDataRef Interface

Table 15-4 summarizes the methods of available through CharacterDataRef interface.

Table 15-4 Summary of CharacterDataRef Methods; Dom Package

Function Summary
appendData
Append data to end of node's current data.
deleteData
Remove part of node's data.
freeString
Deallocate the string allocated by substringData.
getData
Return node's data.
getLength
Return length of node's data.
insertData
Insert string into node's current data.
replaceData
Replace part of node's data.
setData
Set node's data.
substringData
Get substring of node's data.


appendData

Append a string to the end of a CharacterData node's data. The appended data should be in the data encoding. It will not be verified, converted, or checked.


Syntax
void appendData( 
   oratext* data) 
throw (DOMException);

Parameter Description
data
data to append


deleteData

Remove a range of characters from a CharacterData node's data. The offset is zero-based, so offset zero refers to the start of the data. Both offset and count are in characters, not bytes. If the sum of offset and count exceeds the data length then all characters from offset to the end of the data are deleted.


Syntax
void deleteData( 
   ub4 offset, 
   ub4 count) 
throw (DOMException);

Parameter Description
offset
character offset where deletion starts
count
number of characters to delete


freeString

Deallocates the string allocated by substringData(). It is Oracle's extension.


Syntax
void freeString( 
   oratext* str);

Parameter Description
str
string


getData

Returns the data for a CharacterData node (type text, comment or CDATA) in the data encoding.


Syntax
oratext* getData() const;


Returns

(oratext*) node's data


getLength

Returns the length of the data for a CharacterData node (type Text, Comment or CDATA) in characters (not bytes).


Syntax
ub4 getLength() const;


Returns

(ub4) length in characters (not bytes!) of node's data


insertData

Insert a string into a CharacterData node's data at the specified position. The inserted data must be in the data encoding. It will not be verified, converted, or checked. The offset is specified as characters, not bytes. The offset is zero-based, so inserting at offset zero prepends the data.


Syntax
void insertData( 
   ub4 offset,
   oratext* data) 
throw (DOMException);

Parameter Description
offset
character offset where insertion starts
data
data to insert


replaceData

Replaces a range of characters in a CharacterData node's data with a new string. The offset is zero-based, so offset zero refers to the start of the data. The replacement data must be in the data encoding. It will not be verified, converted, or checked. The offset and count are both in characters, not bytes. If the sum of offset and count exceeds length, then all characters to the end of the data are replaced.


Syntax
void replaceData( 
   ub4 offset, 
   ub4 count, 
   oratext* data)
throw (DOMException);

Parameter Description
offset
offset
count
number of characters to replace
data
data


setData

Sets data for a CharacterData node (type text, comment or CDATA), replacing the old data. The new data is not verified, converted, or checked -- it should be in the data encoding.


Syntax
void setData( 
   oratext* data) 
throw (DOMException);

Parameter Description
data
data


substringData

Returns a range of character data from a CharacterData node (type Text, Comment or CDATA). Since the data is in the data encoding, offset and count are in characters, not bytes. The beginning of the string is offset 0. If the sum of offset and count exceeds the length, then all characters to the end of the data are returned. The substring is permanently allocated in the context managed memory and should be explicitly deallocated by freeString


Syntax
oratext* substringData( 
   ub4 offset, 
   ub4 count) 
throw (DOMException);

Parameter Description
offset
offset
count
number of characters to extract


Returns

(oratext *) specified substring