Package 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:

QueryExecuterFactory, Designated

Direct Known Subclasses:

JaxenXPathQueryExecuterFactory, XalanXPathQueryExecuterFactory

public class JRXPathQueryExecuterFactory
extends AbstractQueryExecuterFactory
implements Designated

XPath query executer factory.

The factory creates JRXPathQueryExecuter query executers.

Author:

Lucian Chirita (lucianc@users.sourceforge.net)

Field Summary

Fields

Modifier and Type	Field	Description
static final String	PARAMETER_DOCUMENT_BUILDER_FACTORY	Built-in parameter holding the value of the javax.xml.parsers.DocumentBuilderFactor used to create documents of type org.w3c.dom.Document
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.
static final String	PARAMETER_XML_NAMESPACE_MAP	Parameter that holds the java.util.Map<String,String> with XML namespace information in the <prefix, uri> format
static final String	PROPERTY_XML_DATE_PATTERN	Property holding the value of the date format pattern to be used when parsing the XML data.
static final String	PROPERTY_XML_NUMBER_PATTERN	Property holding the value of the number format pattern to be used when parsing the XLS data.
static final String	QUERY_EXECUTER_NAME
static final String	XML_DATE_PATTERN	Parameter holding the format pattern used to instantiate java.util.Date instances.
static final String	XML_DETECT_NAMESPACES	Boolean parameter/property that specifies whether the XML document should be parsed for namespaces or not.
static final String	XML_FILE	Built-in parameter holding the value of the java.io.File to be used for obtaining the XML data.
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.
static final String	XML_LOCALE	Parameter holding the value of the datasource Locale
static final String	XML_NAMESPACE_PREFIX	Prefix for properties holding the namespace prefix and uri: e.g.
static final String	XML_NUMBER_PATTERN	Parameter holding the format pattern used to instantiate java.lang.Number instances.
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.
static final 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	Description
JRXPathQueryExecuterFactory()

Method Summary

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

Methods inherited from class java.lang.Object

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

Field Details

PARAMETER_DOCUMENT_BUILDER_FACTORY

public static final String PARAMETER_DOCUMENT_BUILDER_FACTORY

Built-in parameter holding the value of the javax.xml.parsers.DocumentBuilderFactor used to create documents of type org.w3c.dom.Document

See Also:

• Constant Field Values

PARAMETER_XML_NAMESPACE_MAP

public static final String PARAMETER_XML_NAMESPACE_MAP

Parameter that holds the java.util.Map<String,String> with XML namespace information in the <prefix, uri> format

See Also:

• Constant Field Values

XML_NAMESPACE_PREFIX

public static final String XML_NAMESPACE_PREFIX

Prefix for properties holding the namespace prefix and uri: e.g. net.sf.jasperreports.xml.namespace.{prefix} = uri

This property has a lower priority than PARAMETER_XML_NAMESPACE_MAP, which if it is specified it will cause the prefixed properties not to be searched for.

See Also:

• Constant Field Values

XML_DETECT_NAMESPACES

public static final String XML_DETECT_NAMESPACES

Boolean parameter/property that specifies whether the XML document should be parsed for namespaces or not.

This parameter is meaningful only when:

• the PARAMETER_XML_NAMESPACE_MAP parameter is not provided or provided with a null value
• there are no properties prefixed with XML_NAMESPACE_PREFIX;
• the xpath query expression that is provided contains XML namespace prefixes

It defaults to false

See Also:

• Constant Field Values

QUERY_EXECUTER_NAME

public static final String QUERY_EXECUTER_NAME

See Also:

• Constant Field Values

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 Details

JRXPathQueryExecuterFactory

public JRXPathQueryExecuterFactory()

Method Details

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"}).

Specified by:

getBuiltinParameters in interface QueryExecuterFactory

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.

Specified by:

createQueryExecuter in interface QueryExecuterFactory

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

createQueryExecuter

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

Specified by:

createQueryExecuter in interface QueryExecuterFactory

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.

Specified by:

supportsQueryParameterType in interface QueryExecuterFactory

Parameters:

className - the value class name of the parameter

Returns:

whether the parameter value type is supported

getDesignation

public String getDesignation()

Specified by:

getDesignation in interface Designated