MarkLogic 9 Product Documentationxdmp and json functions (JSON)
The JSON built-in functions serialize XQuery items to JSON and read a JSON string and create XQuery items from it. JSON (JavaScript Object Notation) is a data-interchange format popular mechanism for passing data from JavaScript to other programming environments.
Functions for validating JSON with JSON schema.
20 functions
| Function name | Description |
|---|---|
| json:array | Creates a (JSON) array, which is like a sequence of values, but allows for nesting. |
| json:array-pop | Pop a value from the end of the array. |
| json:array-push | Push a value to the end of the array, increasing the size of the array by one. |
| json:array-resize | Resize the array to the new size. |
| json:array-set-javascript-by-ref | If true is specified, sets a json:array to be passed to JavaScript by reference. |
| json:array-size | Returns the size of the array. |
| json:array-values | Returns the array values as an XQuery sequence. |
| json:array-with | Push a value to the end of the array, increasing the size of the array by one. |
| json:null | Returns the JSON null value, which is an empty sequence to XQuery, but not a Sequence when passed to JavaScript. |
| json:object | Creates a JSON object, which is a kind of map with a fixed and ordered set of keys. |
| json:object-define | Creates a JSON object. |
| json:set-item-at | Sets a value in an array at a specified position. |
| json:subarray | Extract a subarray from an array, producing a new array. |
| json:to-array | Constructs json:array from a sequence of items. |
| xdmp:from-json | Atomizes a JSON node, returning a JSON value. |
| xdmp:from-json-string | Parses a string as JSON, returning an item sequence. |
| xdmp:json-validate | Validate a JSON node against a JSON Schema. |
| xdmp:json-validate-node | Validate a JSON node against a JSON Schema. |
| xdmp:to-json | Constructs a JSON document. |
| xdmp:to-json-string | Returns a string representing a JSON serialization of a given item sequence. |