com.saxonica.functions.json

Class JsonHandlerMap

java.lang.Object

com.saxonica.functions.json.JsonHandlerMap

All Implemented Interfaces:

JsonHandler

public class JsonHandlerMap
extends Object
implements JsonHandler

Event handler for the JSON parser which constructs a structure of maps and arrays representing the content of the JSON text. (Arrays at this point are represented by maps whose keys are consecutive integers; to enable an empty array to be distinguished, it always contains a key of integer -1, whose associated value is an empty sequence).

Field Summary

Fields

Modifier and Type	Field and Description
protected Stack<String>	keys

Constructor Summary

Constructors

Constructor and Description
JsonHandlerMap(XPathContext context)

Method Summary

Methods

Modifier and Type	Method and Description
void	endArray() Close the current array
void	endMap() Close the current object/map
Item	getResult()
void	setKey(String key) Set the key to be written for the next entry in an object/map
void	startArray() Open a new array
void	startMap() Start a new object/map
void	writeBoolean(boolean value) Write a boolean value
void	writeNull() Write a null value
void	writeNumeric(String asString, double asDouble) Write a numeric value
void	writeString(String val) Write a string value

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

keys

protected Stack<String> keys

Constructor Detail

JsonHandlerMap

public JsonHandlerMap(XPathContext context)

Method Detail

getResult

public Item getResult()
               throws XPathException

Specified by:

getResult in interface JsonHandler

Throws:

XPathException

setKey

public void setKey(String key)

Set the key to be written for the next entry in an object/map

Specified by:

setKey in interface JsonHandler

Parameters:

key - the key for the entry - null implies no key

startArray

public void startArray()
                throws XPathException

Open a new array

Specified by:

startArray in interface JsonHandler

Throws:

XPathException

endArray

public void endArray()
              throws XPathException

Close the current array

Specified by:

endArray in interface JsonHandler

Throws:

XPathException

startMap

public void startMap()
              throws XPathException

Start a new object/map

Specified by:

startMap in interface JsonHandler

Throws:

XPathException

endMap

public void endMap()
            throws XPathException

Close the current object/map

Specified by:

endMap in interface JsonHandler

Throws:

XPathException

writeNumeric

public void writeNumeric(String asString,
                double asDouble)
                  throws XPathException

Write a numeric value

Specified by:

writeNumeric in interface JsonHandler

Parameters:

asString - the string representation of the value

asDouble - the double representation of the value

Throws:

XPathException - if a dynamic error occurs

writeString

public void writeString(String val)
                 throws XPathException

Write a string value

Specified by:

writeString in interface JsonHandler

Parameters:

val - The string to be written (which may or may not contain JSON escape sequences, according to the options that were set)

Throws:

XPathException - if a dynamic error occurs

writeBoolean

public void writeBoolean(boolean value)
                  throws XPathException

Write a boolean value

Specified by:

writeBoolean in interface JsonHandler

Parameters:

value - the boolean value to be written

Throws:

XPathException - if a dynamic error occurs

writeNull

public void writeNull()
               throws XPathException

Write a null value

Specified by:

writeNull in interface JsonHandler

Throws:

XPathException - if a dynamic error occurs