org.openjax.json

Interface JsonHandler

public interface JsonHandler

Handler interface used for parsing JSON with JsonParser.parse(JsonHandler).

Method Summary

Modifier and Type	Method and Description
boolean	characters(char[] chars, int start, int end) Called when token characters are encountered.
void	endDocument() Called when the document's end is encountered.
void	startDocument() Called when the document's start is encountered.
boolean	structural(char ch) Called when a structural token is encountered.
boolean	whitespace(char[] chars, int start, int end) Called when whitespace characters are encountered.

Method Detail

startDocument

void startDocument()

Called when the document's start is encountered.

endDocument

void endDocument()

Called when the document's end is encountered.

structural

boolean structural(char ch)

Called when a structural token is encountered. A structural token is one of:

 { } [ ] : ,
 

Parameters:

ch - The structural token.

Returns:

true to continue parsing, false to abort.

characters

boolean characters(char[] chars,
                   int start,
                   int end)

Called when token characters are encountered. Token characters are:

• A property key:
  • A string that matches:

     ^".*"$

• A property or array member value:
  • A string that matches:

     ^".*"$

  • A number that matches:

     ^-?(0|[1-9]\d*)(\.\d+)?([eE][+-]?([1-9]\d*))?$

  • A literal that matches:

     ^null|true|false$

Parameters:

chars - A reference to the underlying char[] buffer.

start - The start index of the token.

end - The end index of the token.

Returns:

true to continue parsing, false to abort.

whitespace

boolean whitespace(char[] chars,
                   int start,
                   int end)

Called when whitespace characters are encountered. Whitespace characters match:

  ^[ \n\r\t]+$
 

Parameters:

chars - A reference to the underlying char[] buffer.

start - The start index of the token.

end - The end index of the token.

Returns:

true to continue parsing, false to abort.