Package com.jayway.jsonpath.internal.function.text

Class Length

java.lang.Object

com.jayway.jsonpath.internal.function.text.Length

All Implemented Interfaces:

PathFunction

public class Length
extends java.lang.Object
implements PathFunction

Provides the length of a JSONArray Object Created by mattg on 6/26/15.

Field Summary

Fields

Modifier and Type	Field	Description
static java.lang.String	TOKEN_NAME

Constructor Summary

Constructors

Constructor	Description
Length()

Method Summary

Modifier and Type	Method	Description
java.lang.Object	invoke(java.lang.String currentPath, PathRef parent, java.lang.Object model, EvaluationContext ctx, java.util.List<Parameter> parameters)	When we calculate the length of a path, what we're asking is given the node we land on how many children does it have.

Methods inherited from class java.lang.Object

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

Field Detail

TOKEN_NAME

public static final java.lang.String TOKEN_NAME

See Also:

Constant Field Values

Constructor Detail

Length

public Length()

Method Detail

invoke

public java.lang.Object invoke(java.lang.String currentPath,
                               PathRef parent,
                               java.lang.Object model,
                               EvaluationContext ctx,
                               java.util.List<Parameter> parameters)

When we calculate the length of a path, what we're asking is given the node we land on how many children does it have. Thus when we wrote the original query what we really wanted was $..book.length() or $.length($..book.*)

Specified by:

invoke in interface PathFunction

Parameters:

currentPath - The current path location inclusive of the function name

parent - The path location above the current function

model - The JSON model as input to this particular function

ctx - Eval context, state bag used as the path is traversed, maintains the result of executing

parameters -

Returns: