org.geotools.mbstyle.expression

Class MBString

Object

ExpressionAbstract

FunctionImpl

MBExpression

MBString

All Implemented Interfaces:

Expression, Function

public class MBString
extends MBExpression

This class is an extension of the MBExpression containing the functions to support MapBox Style String expressions. String operators "concat", "upcase", and "downcase" are used to manipulate strings within a style.

Field Summary

Fields inherited from class MBExpression

colors, decisions, featureData, ff, heatMap, json, lookUp, math, name, parse, ramps, string, transformer, types, variableBindings, zoom

Fields inherited from class FunctionImpl

functionName

Fields inherited from interface Expression

NIL

Constructor Summary

Constructors

Constructor and Description
MBString(JSONArray json)

Method Summary

Modifier and Type	Method and Description
Expression	getExpression() Will return a function base on the mbexpression string name;
Expression	stringConcat() Returns a string consisting of the concatenation of the inputs.
Expression	stringDowncase() Returns the input string converted to lowercase.
Expression	stringUpcase() Returns the input string converted to uppercase.

Methods inherited from class MBExpression

canCreate, create, getName, throwInsufficientArgumentCount, throwUnexpectedArgumentCount, transformExpression, transformLiteral

Methods inherited from class FunctionImpl

accept, dispatchArguments, equals, evaluate, functionName, getFallbackValue, getFunctionName, getParameters, getParameterValue, getParameterValue, hashCode, setFallbackValue, setName, setParameters, toString

Methods inherited from class ExpressionAbstract

evaluate

Methods inherited from class Object

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

Methods inherited from interface Expression

evaluate

Constructor Detail

MBString

public MBString(JSONArray json)

Method Detail

stringConcat

public Expression stringConcat()
                        throws MBFormatException

Returns a string consisting of the concatenation of the inputs. Example: ["concat", string, string, ...]: string

Returns:

concatenate expression

Throws:

MBFormatException

stringDowncase

public Expression stringDowncase()

Returns the input string converted to lowercase. Follows the Unicode Default Case Conversion algorithm and the locale-insensitive case mappings in the Unicode Character Database. Example: ["downcase", string]: string

Returns:

downcase string expression

stringUpcase

public Expression stringUpcase()

Returns the input string converted to uppercase. Follows the Unicode Default Case Conversion algorithm and the locale-insensitive case mappings in the Unicode Character Database. ["upcase", string]: string

Returns:

uppercase string expression

getExpression

public Expression getExpression()

Will return a function base on the mbexpression string name;

Specified by:

getExpression in class MBExpression

Returns:

expression based on mbexpression string name