[CONF] Apache Camel: Bindy (page edited)

Thu, 05 Feb 2009 02:00:35 -0800

Page Edited : CAMEL : Bindy

Bindy has been edited by Charles Moulliard (Feb 05, 2009).

(View changes)

Content:

Bindy

Available as of Camel 2.0

The idea that the developers have followed to design this component was to allow the binding of non structured data (or to be more precise non-XML data)
to Java Bean using annotations. Using Bindy, you can bind data like :

  • CSV record,
  • Fixedlength record,
  • or any other non-structured data

to one or many POJOS and to convert the data according to the type of the java property. POJOS can be linked together. Moreover, for data type like Date, Double, Float, Integer, Short, Long and BigDecimal, you can provide the pattern to apply during the formatting of the property.

For the BigDecimal number, you can also define the precision and the decimal or grouping separators

Type Format Type Pattern example Link
Date DateFormat "dd-MM-yyyy" http://java.sun.com/j2se/1.5.0/docs/api/java/text/SimpleDateFormat.html
Decimal* Decimalformat "##.###.###" http://java.sun.com/j2se/1.5.0/docs/api/java/text/DecimalFormat.html

Decimal* = Double, Integer, Float, Short, Long

Remark : This first release only support CSV record

To work with camel-bindy, you must first define your model in a package (e.g. com.acme.model) and for each model class (e.g. Order, Client, Instrument, ...), associate the required annotations with Class or property name.

Annotations definition

Annotation name Level Parameter
CsvRecord Class Name : separator, type : string, value : ','

This annotation must be declared one time and is associated to the root class of the model. If the record represents orders, then this annotation is added to the Order class like this :
@CsvRecord( separator = "," )
public Class Order

Using the Java DSL

For example the following uses a named DataFormat of bindy which is configured with a number of Java package names to initialize the model objects.

DataFormat bindy = new CsvBindyDataFormat("com.acme.model");

from("file://inbox").
  unmarshal(bindy).
  to("bean:handleOrder");

You can if you prefer use a named reference to a data format which can then be defined in your Registry such as via your Spring XML file. e.g. 

from("file://inbox").
  unmarshal("myBindyDataFormat").
  to("bean:handleOrder");

Using Spring XML

TODO:

Dependencies

To use Bindy in your camel routes you need to add the a dependency on camel-bindy which implements this data format.

If you use maven you could just add the following to your pom.xml, substituting the version number for the latest & greatest release (see the download page for the latest versions).

<dependency>
  <groupId>org.apache.camel</groupId>
  <artifactId>camel-bindy</artifactId>
  <version>2.0.0</version>
</dependency>

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