http://wiki.clovergui.net/ 2012-05-18T11:57:25+02:00 http://wiki.clovergui.net/ http://wiki.clovergui.net/lib/images/favicon.ico text/html 2012-05-16T11:33:40+02:00 Martin Zatopek http://wiki.clovergui.net/doku.php?id=running&rev=1337160820&do=diff We assume that you have downloaded a binary package of CloverETL framework and Clover Examples or you have built one from sources. Extract the examples to the engine directory. Thus, if you have your engine in the pathtoyourengine/cloverETL/ directory, after extracting the examples to this directory, it will contain the following subdirectories: bin/, docs/, examples/, lib/ and plugins/. The examples can be found in the examples/ subdirectory. text/html 2012-03-08T16:20:00+02:00 Martin Zatopek http://wiki.clovergui.net/doku.php?id=embedding_clover&rev=1331220000&do=diff Note: if you are interested in CloverETL Engine internals, check out Engine Overview presentation. The TransformationGraph class Transformation graph is both abstraction and class which performs some operation. Graph keeps track of all Nodes, Edges, metadata objects. It is also accompanied by class which enables reading the definition of graph from XML file and building everything dynamically. text/html 2011-03-08T18:26:36+02:00 Martin Zatopek http://wiki.clovergui.net/doku.php?id=navigation&rev=1299605196&do=diff ---------- CloverETL Tool ---------- Transformation graph Running & debugging ---------- Graph elements * Components * Connections * Edges * Lookup tables * Metadata * Properties * Sequences ---------- Graph components text/html 2010-09-14T10:27:28+02:00 Alex Donnelly http://wiki.clovergui.net/doku.php?id=start&rev=1284452848&do=diff CloverETL is a Java based ETL framework which can be used to transform structured data, and to some degree free-form data. Its complete platform independence is achieved by the exclusive use of Java technology. It can be used standalone as an application launched from a command line or can be embedded into your own application. CloverETL is released under the LGPL license. text/html 2010-07-21T08:54:03+02:00 Agata Vackova http://wiki.clovergui.net/doku.php?id=components:writers&rev=1279695243&do=diff Writers are terminated components of graph that writes data to output source. The source can be for example a file placed on local disk, ftp, ldap, jms or database tables, etc. Graph must contain at least one of these components or more. ---------- text/html 2010-07-14T10:39:25+02:00 Agata Vackova http://wiki.clovergui.net/doku.php?id=components:others&rev=1279096765&do=diff This components perform various operations like data verification, command performing and so on. ---------- Attribute Description Exp. id component identification string type component type. This attribute is automatically generated from gui. string text/html 2010-07-12T21:47:26+02:00 David Pavlis http://wiki.clovergui.net/doku.php?id=components:transformers&rev=1278964046&do=diff Transformers are components of graph that transform data from one or more input ports to output port. Most of transformers use transform function or key or some other method that defines particular data transformation. Note: For characters that are impossible to enter directly, there are several escape sequences: \\, \n, \t, \r, \”, \f, \b. So be careful when using “\” character, eg. parameter filterExpression=“$Field1~="([^\\|]*\\|){3}"” will be interpreted as “$Field1~="([^\|]… text/html 2010-06-10T17:21:43+02:00 Tomas Waller http://wiki.clovergui.net/doku.php?id=graph_elements:metadata&rev=1276183303&do=diff Clover metadata describes semantics of data record, this is how to create data record from elementary data types. Representation of data within CloverETL CloverETL works with data in terms of data records and data fields within records. Internally, all records are represented as variable length data. It means, that every data field consumes only as much memory as it is needed for storing field's value. If you have field of type STRING specified to be of 50 chars in length and this field is po…