Support for running functions over a result set - PR for #191

[transparentech]

This branch allows you to execute functions on result sets (as well as static arrays).

The basic idea is that we remove the tail function path from the rootpath. Then we evaluate the rootpath. Then we evaluate the function path on the result of the rootpath evaluation.

Happy to discuss any improvements.

[cegganesh84]

I was looking for this feature and found it in this PR. May I know when this will be merged? Thanks!

[johnwiesel]

I normally do not comment if I have nothing to contribute really but this PR has been open for over half a year and adds a feature I would love to see. Any news regarding this? Thank you for your understanding!

[jakeswenson]

I couldn't wait for this to (finally) get merged, so i forked it and pushed it to maven for my use. If anyone else needs this you can find it in maven central here

• io.paradoxical:json-path:2.3-experimental-1
• Forked project: https://github.com/paradoxical-io/JsonPath

you should be able to use it like so:

<dependency>
    <groupId>io.paradoxical</groupId>
    <artifactId>json-path</artifactId>
    <version>2.3-experimental-1</version>
</dependency>

this includes this PR and my PR to add custom functions.

ciao

[rhavermans]

Functionality is in #377