DBOUpdate

Description

The DBOUpdate element represents the DBO optimized for update operations.

GreenVulcano^® ESB configuration

DBOUpdate with VulCon

DBOUpdate allows you to update data into the database.

Each statement is identified by the id.

Actions can be defined in two ways:

• Single execution of a statement
• Complex execution guided by XML

In the first modality any input is ignored and the code executes the first statement configured.

In the second mode, the input XML (or its transformation) must contain the command (row) valid with all parameters (COL) required by the statement.

The following table shows the DBOUpdate attributes:

Attribute	Type	Description
type	fixed	This attribute must assume the value dbo
class	fixed	This attribute must assume the value it.greenvulcano.gvesb.datahandling.dbo.DBOUpdate
name	required	DBOUpdate name
transformation	required	Transformation to be applied on the input data to obtain the internal XML commands.
force-mode	optional	(caller or xml2db) Force mode of the DBO, can be used in DBOBuilder whit more heterogeneous DBOs. Mode: caller - inherit the mode of the caller xml2db - data entry mode
jdbc-connection-name	optional	DataSource JNDI name. Override connection defined in DBOBuilder.
ignore-input	optional	(true or false) Tells the engine do not use the input data.
input-data	optional	The default is the value of @name-Input. Can be set as the @output-data of a preceding DBO to use its output as input.
output-data	optional	The default is the value of @name-Output.

For example:

<?xml version="1.0" encoding="UTF-8"?>
 <DBOBuilder class="it.greenvulcano.gvesb.datahandling.dbobuilder.DBOBuilder"
              jdbc-connection-name="ds.gv_test" name="PersonInsertFull" type="dbobuilder">
       <DHVariables>
             <DHVariable name="decimal-separator" value="."/>
             <DHVariable name="grouping-separator" value=","/>
             <DHVariable name="format" value="#0.00"/>
       </DHVariables>
       <DBOUpdate class="it.greenvulcano.gvesb.datahandling.dbo.DBOUpdate"
               name="CCardPay" transformation="CCardPay" type="dbo">
               <statement id="0" type="update">
                        update CREDIT_CARD  set CREDIT= CREDIT - ?
                        where CNUMBER=?
                        and ENABLED=‘Y’
                        and CREDIT  >= ?
               </statement>
       </DBOUpdate>
 </DBOBuilder>

According with the data present into the database, this statement will return the following XML:

<RowSet>
    <data>
        <row>
            <col type="float">10</col>
            <col>1111222233334444</col>
            <col type="float">10</col>
       </row>
    </data>
</RowSet>

DBOUpdate might contain the following sub-elements:

• Description
• DHVariables
• statement