The DBReport Mediator is very similar to the DBLookup Mediator, but writes information to a Database, using the specified insert SQL statement.
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Syntax
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<dbreport>
<connection>
<pool>
(
<driver/>
<url/>
<user/>
<password/>
<dsName/>
<icClass/>
<url/>
<user/>
<password/>
)
<property name="name" value="value"/>*
</pool>
</connection>
<statement>
<sql>insert into something values(?, ?, ?, ?)</sql>
<parameter [value="" | expression=""] type="CHAR|VARCHAR|LONGVARCHAR|NUMERIC|DECIMAL|BIT|TINYINT|SMALLINT|INTEGER|BIGINT|REAL|FLOAT|DOUBLE|DATE|TIME|TIMESTAMP"/>*
</statement>+
</dblreport>
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- Use Transaction - (Yes/No)
- Connection Information - Specifies whether the connection is taken from a connection pool or from a data source.
- Database Type:
- External
- Carbon Datasource
Data Source Name
Info title Tip You can view the available data sources by clicking the "Load Data Sources" icon.
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You can click this link to add namespaces if you are providing an expression. You will be provided another panel named "Namespace Editor," where you can provide any number of namespace prefixes and URL that you have used in the XPath expression. |
- Action - Delete the parameter.
Results - Specify how to deal with rerun result from Database query execution. - Result Name
- Column Action - Deletes the result.
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You can configure the Mediator using XML. Click on "switch to source view" in the "Mediator" window.
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Example
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<dbreport xmlns="http://ws.apache.org/ns/synapse">
<connection>
<pool>
<driver>org.apache.derby.jdbc.ClientDriver</driver>
<url>jdbc:derby://localhost:1527/esbdb;create=false</url>
<user>esb</user>
<password>esb</password>
</pool>
</connection>
<statement>
<sql>update company set price=? where name =?</sql>
<parameter expression="//m0:return/m1:last/child::text()"
xmlns:m0="http://services.samples" xmlns:m1="http://services.samples/xsd" type="DOUBLE"/>
<parameter expression="//m0:return/m1:symbol/child::text()"
xmlns:m0="http://services.samples" xmlns:m1="http://services.samples/xsd" type="VARCHAR"/>
</statement>
</dbreport>
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This example demonstrates simple database write operations. The DBReport Mediator writes to a table using the message's details. It works the same way as the DBLookup Mediator. In this sample DBReport Mediator is used for updating the stock price of the company using the last quote value which is calculated by evaluating an XPath against the response message.
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Description of the DBReport Mediator in WSO2 ESB. |