Package net.sf.saxon.ma.json

Class ParseJsonFn

java.lang.Object

net.sf.saxon.functions.AbstractFunction

net.sf.saxon.functions.SystemFunction

net.sf.saxon.ma.json.JsonToXMLFn

net.sf.saxon.ma.json.ParseJsonFn

All Implemented Interfaces:

Callable, FunctionItem, GroundedValue, Item, Sequence

public class ParseJsonFn
extends JsonToXMLFn

Implements the parse-json function, as defined in XPath 3.1 The parsing code, and the handling of options is shared with the json-to-xml function.

Field Summary

Fields

Modifier and Type	Field	Description
static OptionsParameter	OPTION_DETAILS

Constructor Summary

Constructors

Constructor	Description
ParseJsonFn()

Method Summary

Modifier and Type	Method	Description
protected Item	eval(java.lang.String input, MapItem options, XPathContext context)	Parse the JSON string according to supplied options
static Item	parse(java.lang.String input, java.util.Map<java.lang.String,GroundedValue> options, XPathContext context)	Parse the JSON string according to supplied options

Methods inherited from class net.sf.saxon.ma.json.JsonToXMLFn

call

Methods inherited from class net.sf.saxon.functions.SystemFunction

dependsOnContextItem, dynamicCall, equals, export, exportAdditionalArguments, exportAttributes, fixArguments, getArity, getCardinality, getContextNode, getDescription, getDetails, getElaborator, getErrorCodeForTypeErrors, getFunctionItemType, getFunctionName, getIntegerBounds, getNetCost, getOperandRoles, getRequiredType, getResultItemType, getResultItemType, getRetainedStaticContext, getSpecialProperties, getStaticBaseUriString, getStreamerName, getUniStringArg, hashCode, importAttributes, isSequenceVariadic, isTrustedResultType, makeCall, makeFunction, makeFunction40, makeFunctionCall, makeOptimizedFunctionCall, resultIfEmpty, setArity, setDetails, setRetainedStaticContext, supplyTypeInformation, toShortString, toString, typeCheckCaller

Methods inherited from class net.sf.saxon.functions.AbstractFunction

atomize, deepEqual40, deepEquals, effectiveBooleanValue, getAnnotations, getUnicodeStringValue, isArray, isMap, makeNewContext, simplify, typeCheck

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface net.sf.saxon.om.FunctionItem

getGenre

Methods inherited from interface net.sf.saxon.om.GroundedValue

asIterable, concatenate, containsNode, materialize

Methods inherited from interface net.sf.saxon.om.Item

getLength, getStringValue, head, isStreamed, itemAt, iterate, reduce, subsequence

Methods inherited from interface net.sf.saxon.om.Sequence

makeRepeatable

Field Detail

OPTION_DETAILS

public static OptionsParameter OPTION_DETAILS

Constructor Detail

ParseJsonFn

public ParseJsonFn()

Method Detail

eval

protected Item eval(java.lang.String input,
                    MapItem options,
                    XPathContext context)
             throws XPathException

Parse the JSON string according to supplied options

Overrides:

eval in class JsonToXMLFn

Parameters:

input - JSON input string

options - options for the conversion as a map of xs:string : value pairs

context - XPath evaluation context

Returns:

the result of the parsing, typically a map or array

Throws:

XPathException - if the syntax of the input is incorrect

parse

public static Item parse(java.lang.String input,
                         java.util.Map<java.lang.String,GroundedValue> options,
                         XPathContext context)
                  throws XPathException

Parse the JSON string according to supplied options

Parameters:

input - JSON input string

options - options for the conversion as a map of xs:string : value pairs

context - XPath evaluation context

Returns:

the result of the parsing, as an item (null in the case where the JSON input is "null")

Throws:

XPathException - if the syntax of the input is incorrect