tContextDump – Docs for ESB 5.x

Component family

Misc

Function

tContextDump dumps the context
setup of the current Job to the subsequent component.

Purpose

tContextDump copies the context
setup of the current Job to a flat file, a database table, etc.,
which can then be used by tContextLoad. Together with tContextLoad, this component makes it simple to
apply the context setup of one Job to another.

Basic settings

Schema and Edit
schema

A schema is a row description, it defines the fields that will be
processed and passed on to the next component.

Hide Password

Select this check box to hide the value of context parameter
password, namely displaying the value of context parameters whose
Type is Password as *.

Global Variables

NB_LINE: the number of rows processed. This is an After
variable and it returns an integer.

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

As a start component, tContextDump dumps the context setup of the current
Job to a file, a database table, etc.

Log4j

The activity of this component can be logged using the log4j feature. For more information on this feature, see Talend Studio User
Guide.

For more information on the log4j logging levels, see the Apache documentation at http://logging.apache.org/log4j/1.2/apidocs/org/apache/log4j/Level.html.

Limitation

n/a