tLastRegexlibExpressions – Docs for ESB 5.x

Component family

Data Quality

Function

tRegexlibExpressionsconnects to a
web service at http://regexlib.com to
get the N most recent expressions from the list of regular
expressions.

Purpose

tFindRegexlibExpressionsreturns a
dataset holding information about the N most recent regular
expressions added to the library and that match the query at http://regexlib.com.

Basic settings

Schema and Edit
schema

These fields are read-only. The output schema of this component
contains the following fields: Title, Expression,
Description, Matches, Non-matches, Author,
Rating.

Max Rows

Enter the max number of the expressions you want to get.

Advanced settings

tStat
Catcher
Statistics

Select this check box to collect log data at the component
level.

Global Variables

ERROR_MESSAGE: the error message generated by the
component when an error occurs. This is an After variable and it returns a string. This
variable functions only if the Die on error check box is
cleared, if the component has this check box.

A Flow variable functions during the execution of a component while an After variable
functions after the execution of the component.

To fill up a field or expression with a variable, press Ctrl +
Space to access the variable list and choose the variable to use from it.

For further information about variables, see Talend Studio
User Guide.

Usage

This component is a start component. It requires an output flow,
usually a csv file to be able later to import the collected
expressions into Talend Studio.

For more information about importing patterns, see
Talend Studio User
Guide.

Limitation

n/a