net.sf.jasperreports.engine.query

Class JRXPathQueryExecuterFactory

java.lang.Object

net.sf.jasperreports.engine.query.AbstractQueryExecuterFactory

net.sf.jasperreports.engine.query.JRXPathQueryExecuterFactory

All Implemented Interfaces:

JRQueryExecuterFactory, QueryExecuterFactory

Direct Known Subclasses:

JaxenXPathQueryExecuterFactory, XalanXPathQueryExecuterFactory

public class JRXPathQueryExecuterFactory
extends AbstractQueryExecuterFactory

XPath query executer factory.

The factory creates JRXPathQueryExecuter query executers.

Author:

Lucian Chirita (lucianc@users.sourceforge.net)

Field Summary

Fields

Modifier and Type	Field and Description
static String	PARAMETER_XML_DATA_DOCUMENT Built-in parameter holding the value of the org.w3c.dom.Document used to run the XPath query.
static String	PROPERTY_XML_DATE_PATTERN Property holding the value of the date format pattern to be used when parsing the XML data.
static String	PROPERTY_XML_NUMBER_PATTERN Property holding the value of the number format pattern to be used when parsing the XLS data.
static String	XML_DATE_PATTERN Parameter holding the format pattern used to instantiate java.util.Date instances.
static String	XML_FILE Built-in parameter holding the value of the java.io.File to be used for obtaining the XML data.
static String	XML_INPUT_STREAM Built-in parameter holding the value of the java.io.InputStream to be used for obtaining the XML data.
static String	XML_LOCALE Parameter holding the value of the datasource Locale
static String	XML_NUMBER_PATTERN Parameter holding the format pattern used to instantiate java.lang.Number instances.
static String	XML_SOURCE Built-in parameter/property holding the value of the java.lang.String source to be used for obtaining the XML data.
static String	XML_TIME_ZONE Parameter holding the value of the datasource Timezone

Fields inherited from interface net.sf.jasperreports.engine.query.QueryExecuterFactory

QUERY_EXECUTER_FACTORY_PREFIX

Constructor Summary

Constructors

Constructor and Description
JRXPathQueryExecuterFactory()

Method Summary

Methods

Modifier and Type	Method and Description
JRQueryExecuter	createQueryExecuter(JasperReportsContext jasperReportsContext, JRDataset dataset, Map<String,? extends JRValueParameter> parameters) Creates a query executer.
Object[]	getBuiltinParameters() Returns the built-in parameters associated with this query type.
boolean	supportsQueryParameterType(String className) Decides whether the query executers created by this factory support a query parameter type.

Methods inherited from class net.sf.jasperreports.engine.query.AbstractQueryExecuterFactory

createQueryExecuter

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

PARAMETER_XML_DATA_DOCUMENT

public static final String PARAMETER_XML_DATA_DOCUMENT

Built-in parameter holding the value of the org.w3c.dom.Document used to run the XPath query.

See Also:

Constant Field Values

XML_INPUT_STREAM

public static final String XML_INPUT_STREAM

Built-in parameter holding the value of the java.io.InputStream to be used for obtaining the XML data.

See Also:

Constant Field Values

XML_FILE

public static final String XML_FILE

Built-in parameter holding the value of the java.io.File to be used for obtaining the XML data.

See Also:

Constant Field Values

XML_SOURCE

public static final String XML_SOURCE

Built-in parameter/property holding the value of the java.lang.String source to be used for obtaining the XML data.

See Also:

Constant Field Values

XML_DATE_PATTERN

public static final String XML_DATE_PATTERN

Parameter holding the format pattern used to instantiate java.util.Date instances.

See Also:

Constant Field Values

PROPERTY_XML_DATE_PATTERN

public static final String PROPERTY_XML_DATE_PATTERN

Property holding the value of the date format pattern to be used when parsing the XML data.

See Also:

Constant Field Values

XML_NUMBER_PATTERN

public static final String XML_NUMBER_PATTERN

Parameter holding the format pattern used to instantiate java.lang.Number instances.

See Also:

Constant Field Values

PROPERTY_XML_NUMBER_PATTERN

public static final String PROPERTY_XML_NUMBER_PATTERN

Property holding the value of the number format pattern to be used when parsing the XLS data.

See Also:

Constant Field Values

XML_LOCALE

public static final String XML_LOCALE

Parameter holding the value of the datasource Locale

See Also:

Constant Field Values

XML_TIME_ZONE

public static final String XML_TIME_ZONE

Parameter holding the value of the datasource Timezone

See Also:

Constant Field Values

Constructor Detail

JRXPathQueryExecuterFactory

public JRXPathQueryExecuterFactory()

Method Detail

getBuiltinParameters

public Object[] getBuiltinParameters()

Description copied from interface: QueryExecuterFactory

Returns the built-in parameters associated with this query type.

These parameters will be created as system-defined parameters for each report/dataset having a query of this type.

The returned array should contain consecutive pairs of parameter names and parameter classes (e.g. {"Param1", String.class, "Param2", "List.class"}).

Returns:

array of built-in parameter names and types associated with this query type

createQueryExecuter

public JRQueryExecuter createQueryExecuter(JasperReportsContext jasperReportsContext,
                                  JRDataset dataset,
                                  Map<String,? extends JRValueParameter> parameters)
                                    throws JRException

Description copied from interface: QueryExecuterFactory

Creates a query executer.

This method is called at fill time for reports/datasets having a query supported by this factory.

Parameters:

jasperReportsContext - the JasperReportsContext

dataset - the dataset containing the query, fields, etc

parameters - map of value parameters (instances of JRValueParameter) indexed by name

Returns:

a query executer

Throws:

JRException

supportsQueryParameterType

public boolean supportsQueryParameterType(String className)

Description copied from interface: QueryExecuterFactory

Decides whether the query executers created by this factory support a query parameter type.

This check is performed for all $P{..} parameters in the query.

Parameters:

className - the value class name of the parameter

Returns:

whether the parameter value type is supported