Method JsFunction

src/org/apache/pig/scripting/js/JsFunction.java:172–191

(String functionName)

    //////////////////////

    public JsFunction(String functionName) {
        this.jsScriptEngine = JsScriptEngine.getInstance();
        this.functionName = functionName;
        Object outputSchemaObj = jsScriptEngine.jsEval(this.getClass().getName() + "(String)",
                functionName + ".outputSchema");
        //if no schema defined, fall back to bytearray
        if (outputSchemaObj == null || outputSchemaObj instanceof Undefined) {
            this.outputSchema = new Schema(new Schema.FieldSchema(null, DataType.BYTEARRAY));
        }
        else {
            try {
                this.outputSchema = Utils.getSchemaFromString(outputSchemaObj.toString());
            }
            catch (ParserException e) {
                throw new IllegalArgumentException(functionName
                        + ".outputSchema is not a valid schema: " + e.getMessage(), e);
            }
        }

    }

    ///////////////////////////
    // EvalFunc implementation