hop-user-manual/modules/ROOT/pages/plugins/transforms/propertyinput.adoc

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:documentationPath: /plugins/transforms/
:language: en_US
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= Read data (key, value) from properties files.

== Description

The Property Input transform reads from a Java properties files. 

For more information on this file format, read this : http://en.wikipedia.org/wiki/.properties

== Options

=== Files Tab

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|===
|Option|Description
|Transform name|Name of the transform this name has to be unique in a single pipeline.
|Filenames from field a|
* Filename is defined in a field? : the previous transform is giving filenames in a certain field in the input stream.  These are read.
* Get filename from field : specify the field to the filenames from.
|File or directory|Specifies the location and/or name of the input text file.
Important: Click Add to add the file/directory/wildcard combination to the list of selected files (grid) below.
|Regular expression|Specifies the regular expression you want to use to select the files in the directory specified in the previous option.
|Selected Files|Contains a list of selected files (or wildcard selections) and a property specifying if file is required or not. If a file is required and it is not found, an error is generated;otherwise, the file name is skipped.
|Show filenames(s)...|Displays a list of all files that will be loaded based on the current selected file definitions 
|===

=== Content Tab

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|===
|Option|Description
|Include filename in output?|Allows you to specify a field name to include the file name (String) in the output of this transform.
|Rownum in output|Allows you to specify a field name to include the row number (Integer) in the output of this transform.
|Reset rownum per file?|Enable this option if you want the generated row number (optional) to be reset (to 1) at the start of every individual file.
|Limit|Limits the number of rows to this number (zero (0) means all rows).
|Result filenames a|
* Add files to result filename : Adds the names of the files read to the result of this pipeline. A unique list is being kept in memory that can be used in the next workflow action in a workflow, for example in another pipeline.
|===

=== Fields

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|===
|Option|Description
|Name|The name of the output field
|Column|The attribute to read
|Type|The data type to convert to
|Format|The format or conversion mask to use in the data type conversion
|Length|The length of the output data type
|Precision|The precision of the output data type
|Currency|The currency symbol to use during data type conversion
|Decimal|The numeric decimal symbol to use during data type conversion
|Group|The numeric grouping symbol to use during data type conversion
|Trim type|The type of trimming to use during data type conversion
|Repeat|Repeat the column value of the previous row if the column value is empty (null) 
|===