net.sf.jasperreports.engine
Interface JRQuery

All Superinterfaces:

java.lang.Cloneable, JRCloneable

All Known Implementing Classes:

JRBaseQuery, JRDesignQuery

public interface JRQuery
extends JRCloneable

Represents a query used for generation of report data.

Based on the query language, query executer implementations are used to retrieve the data and create a JRDataSource to be used by the filling process.

When using the default SQL connection data source, an SQL query must also be provided for JasperReports to automatically retrieve the data. For SQL queries, a very important aspect is that column names in the result set obtained from the query must match the field names defined in the report template.

Version:

$Id: JRQuery.java 5180 2012-03-29 13:23:12Z teodord $

Author:

Teodor Danciu (teodord@users.sourceforge.net)

See Also:

QueryExecuterFactory

Method Summary

JRQueryChunk[]	getChunks()
java.lang.String	getLanguage() Returns the query language.
java.lang.String	getText() Returns the query string.

Methods inherited from interface net.sf.jasperreports.engine.JRCloneable

clone

Method Detail

getChunks

JRQueryChunk[] getChunks()

getText

java.lang.String getText()

Returns the query string.

getLanguage

java.lang.String getLanguage()

Returns the query language.

Based on the query language, a corresponding QueryExecuterFactory is used to create a JRQueryExecuter instance. The query executer is responsible for executing the query and creating a JRDataSource from the result.

Returns:

the query language