All Classes and Interfaces
Class
Description
Returns the absolute value of the number parameter, i.e.
Always returns as a DoubleNode (regardless of input)
From http://docs.jsonata.org/string-functions.html:
$base64decode()
Converts base 64 encoded bytes to a string, using a UTF-8 Unicode codepage.
From http://docs.jsonata.org/string-functions.html:
$base64encode(str)
Converts an ASCII string to a base 64 representation.
Class mapping a variable name to a variable or function declaration
expression
From http://docs.jsonata.org/boolean-functions.html
$boolean(arg)
Casts the argument to a Boolean using the following rules:
Boolean: unchanged string: empty false string: non-empty true number: 0 false
number: non-zero true null: false array: empty false array: contains a member
that casts to true true array: all members cast to false false object: empty
false object: non-empty true function: (functions are not currently
supported) false
ANTLR error listener implementation for registration with lexers and parsers.
http://docs.jsonata.org/numeric-functions.html
$ceil(number)
Returns the value of number rounded up to the nearest integer that is greater
than or equal to number.
From http://docs.jsonata.org/string-functions.html:
$contains(str, pattern)
Returns true if str is matched by pattern, otherwise it returns false.
From https://docs.jsonata.org/array-functions#distinct
$distinct(array)
Returns an array containing all the values from the array parameter,
but with any duplicates removed.
Returns an array containing the values return by the function when applied to
each key/value pair in the object.
The function parameter will get invoked with two arguments:
function(value, name)
where the value parameter is the value of each name/value pair in the object and name is its name.
The function parameter will get invoked with two arguments:
function(value, name)
where the value parameter is the value of each name/value pair in the object and name is its name.
From http://docs.jsonata.org/string-functions.html:
$error(str)
Throws an error with the string as its message.
From http://docs.jsonata.org/string-functions.html:
Signature: $eval(expr [, context])
Parses and evaluates the string expr which contains literal JSON or a JSONata expression using the current context as the context for evaluation.
Class to provide embedding and extending JSONata features
This is how we indicate to upstream operators that we are currently inside a
selection statement.
From http://docs.jsonata.org/higher-order-functions#filter
Signature: $filter(array, function)
Returns an array containing only the values in the array parameter that
satisfy the function predicate (i.e.
http://docs.jsonata.org/numeric-functions.html
$floor(number)
Returns the value of number rounded down to the nearest integer that is
smaller or equal to number.
From http://docs.jsonata.org/string-functions.html:
$formatBase(number [, radix])
Casts the number to a string and formats it to an integer represented in the
number base specified by the radix argument.
From http://docs.jsonata.org/string-functions.html:
$formatNumber(number, picture [, options])
Casts the number to a string and formats it to a decimal representation as
specified by the picture string.
ExpressionsVisitor to manage the current block's environment.From http://docs.jsonata.org/string-functions.html:
$fromMillis(number)
Convert a number representing milliseconds since the Unix Epoch (1 January,
1970 UTC) to a timestamp string in the ISO 8601 format.
From http://docs.jsonata.org/string-functions.html:
$join(array[, separator])
Joins an array of component strings into a single concatenated string with
each component string separated by the optional separator parameter.
Special object extends java.util.Date with special constructors
taking specific date formatted strings.
A utility for merging arbitrary JSON trees.
From http://docs.jsonata.org/object-functions.html
$keys(object)
Returns the keys in an array of Strings.
From http://docs.jsonata.org/string-functions.html:
$length(str)
Returns the number of characters in the string str.
From http://docs.jsonata.org/object-functions.html
$lookup(object,key)
Returns the value corresponding to the key in the supplied object.
From http://docs.jsonata.org/string-functions.html:
$lowercase(str)
Returns a string with all the characters of str converted to lowercase.
From http://docs.jsonata.org/higher-order-functions#map
Signature: $map(array, function)
Returns an array containing the results of applying the function parameter to
each value in the array parameter.
This class provides an empty implementation of
MappingExpressionListener,
which can be extended to create a listener which only needs to handle a subset
of the available methods.This class provides an empty implementation of
MappingExpressionVisitor,
which can be extended to create a visitor which only needs to handle a subset
of the available methods.This interface defines a complete listener for a parse tree produced by
MappingExpressionParser.This interface defines a complete generic visitor for a parse tree produced
by
MappingExpressionParser.From http://docs.jsonata.org/string-functions.html:
$match(str, pattern [, limit])
Finds occurrences of pattern within str and reports them with their index and
group.
From http://docs.jsonata.org/aggregation-functions.html
$max(array)
Returns the maximum number in an array of numbers.
Returns the merger of the objects in an array of objects.
http://docs.jsonata.org/numeric-functions.html
$millis()
Returns the number of milliseconds since the Unix Epoch (1 January, 1970 UTC)
as a number.
From http://docs.jsonata.org/aggregation-functions.html
$min(array)
Returns the minimum number in an array of numbers.
From http://docs.jsonata.org/string-functions.html:
$now()
Generates a UTC timestamp in ISO 8601 compatible format and returns it as a
string.
http://docs.jsonata.org/numeric-functions.html
Casts the arg parameter to a number using the following casting rules:
- Numbers are unchanged - Strings that contain a sequence of characters that
represent a legal JSON number are converted to that number - All other values
cause an error to be thrown.
From http://docs.jsonata.org/string-functions.html:
$pad(str, width [, char])
Returns a copy of the string str with extra padding, if necessary, so that
its total number of characters is at least the absolute value of the width
parameter.
This class provides an empty implementation of
PathExpressionParserListener,
which can be extended to create a listener which only needs to handle a subset
of the available methods.This class provides an empty implementation of
PathExpressionParserVisitor,
which can be extended to create a visitor which only needs to handle a subset
of the available methods.This interface defines a complete listener for a parse tree produced by
PathExpressionParser.This interface defines a complete generic visitor for a parse tree produced
by
PathExpressionParser.Thrown when attempting to evaluate "path" statements that are outside of a
predicate e.g.
http://docs.jsonata.org/numeric-functions.html
$power(base, exponent)
Returns the value of base raised to the power of exponent (baseexponent).
http://docs.jsonata.org/numeric-functions.html
$random()
Returns a pseudo random number greater than or equal to zero and less than
one (0 ≤ n < 1)
Examples
$random()==0.7973541067127 $random()==0.4029142127028 $random() ==
0.6558078550072
From http://docs.jsonata.org/higher-order-functions#reduce
Signature: $reduce(array, function [, init])
Returns an aggregated value derived from applying the function parameter
successively to each value in array in combination with the result of the
previous application of the function.
A helper class to store information about a parsed regular expression.
From http://docs.jsonata.org/string-functions.html:
$replace(str, pattern, replacement [, limit])
Finds occurrences of pattern within str and replaces them with replacement.
http://docs.jsonata.org/numeric-functions.html
$round(number [, precision])
Returns the value of the number parameter rounded to the number of decimal
places specified by the optional precision parameter.
From http://docs.jsonata.org/object-functions.html
$spread(object)
Splits an object containing key/value pairs into an array of objects, each of
which has a single key/value pair from the input object.
Manages signature related functions
From http://docs.jsonata.org/string-functions.html:
$split(str, separator [, limit])
Splits the str parameter into an array of substrings.
From http://docs.jsonata.org/object-functions.html
$spread(object)
Splits an object containing key/value pairs into an array of objects, each of
which has a single key/value pair from the input object.
http://docs.jsonata.org/numeric-functions.html
$sqrt(number)
Returns the square root of the value of the number parameter.
From http://docs.jsonata.org/string-functions.html:
$string(arg)
Casts the arg parameter to a string using the following casting rules
Strings are unchanged Functions are converted to an empty string Numeric
infinity and NaN throw an error because they cannot be represented as a JSON
number All other values are converted to a JSON string using the
JSON.stringify function If arg is not specified (i.e.
From http://docs.jsonata.org/string-functions.html:
$substringAfter(str, chars)
Returns the substring after the first occurrence of the character sequence
chars in str.
From http://docs.jsonata.org/string-functions.html:
$substringBefore(str, chars)
Returns the substring before the first occurrence of the character sequence
chars in str.
Complies with javascript substr (and thus JSONata $substring).
Expression evaluation test utility
Expression evaluation test utility
A Swing UI app to test JSONata4Java interactively similar to the original
JSONata Exerciser (see https://try.jsonata.org).
Defines a set color schemas for the different text areas in the UI.
Since Swing does not yet provide a font chooser we have to write it.
Defines a set of examples that can be used to demonstrate JSONata4Java's capabilities.
A preferences dialog allowing to tweak different setting of the Tester UI app.
Allows to store the Test UI app settings in a .properties file in alphabetical order.
Aggregates all Tester UI app settings that can be interactively changed.
http://docs.jsonata.org/numeric-functions.html
$toMillis(timestamp)
Convert a timestamp string in the ISO 8601 format to the number of
milliseconds since the Unix Epoch (1 January, 1970 UTC) as a number.
From http://docs.jsonata.org/string-functions.html:
$trim(str)
Normalizes and trims all whitespace characters in str by applying the
following steps:
* All tabs, carriage returns, and line feeds are replaced with spaces.
From http://docs.jsonata.org/string-functions.html:
$trim(str)
Normalizes and trims all whitespace characters in str by applying the
following steps:
* All tabs, carriage returns, and line feeds are replaced with spaces.
From http://docs.jsonata.org/string-functions.html:
$uppercase(str)
Returns a string with all the characters of str converted to uppercase.
From http://docs.jsonata.org/string-functions.html:
$length(str)
Returns the number of characters in the string str.
From http://docs.jsonata.org/string-functions.html:
$length(str)
Returns the number of characters in the string str.
From http://docs.jsonata.org/string-functions.html:
$length(str)
Returns the number of characters in the string str.
From http://docs.jsonata.org/string-functions.html:
$length(str)
Returns the number of characters in the string str.