org.apache.solr.search
Class QParserPlugin

java.lang.Object
  org.apache.solr.search.QParserPlugin

All Implemented Interfaces:

SolrInfoMBean, NamedListInitializedPlugin

Direct Known Subclasses:

BlockJoinParentQParserPlugin, BoostQParserPlugin, CollapsingQParserPlugin, DisMaxQParserPlugin, ExtendedDismaxQParserPlugin, FieldQParserPlugin, FunctionQParserPlugin, FunctionRangeQParserPlugin, JoinQParserPlugin, LuceneQParserPlugin, NestedQParserPlugin, OldLuceneQParserPlugin, PrefixQParserPlugin, RawQParserPlugin, SimpleQParserPlugin, SpatialFilterQParserPlugin, SurroundQParserPlugin, SwitchQParserPlugin, TermQParserPlugin

public abstract class QParserPlugin
extends Object
implements NamedListInitializedPlugin, SolrInfoMBean

Nested Class Summary

Nested classes/interfaces inherited from interface org.apache.solr.core.SolrInfoMBean

SolrInfoMBean.Category

Field Summary

static String	DEFAULT_QTYPE internal use - name of the default parser
static Object[]	standardPlugins Internal use - name to class mappings of builtin parsers.

Constructor Summary

QParserPlugin()

Method Summary

abstract QParser	createParser(String qstr, SolrParams localParams, SolrParams params, SolrQueryRequest req) return a QParser
SolrInfoMBean.Category	getCategory() Purpose of this Class
String	getDescription() Simple one or two line description
URL[]	getDocs() Documentation URL list.
String	getName() Simple common usage name, e.g.
String	getSource() CVS Source, SVN Source, etc
NamedList	getStatistics() Any statistics this instance would like to be publicly available via the Solr Administration interface.
String	getVersion() Simple common usage version, e.g.

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.solr.util.plugin.NamedListInitializedPlugin

init

Field Detail

DEFAULT_QTYPE

public static final String DEFAULT_QTYPE

internal use - name of the default parser

See Also:

Constant Field Values

standardPlugins

public static final Object[] standardPlugins

Internal use - name to class mappings of builtin parsers. Each query parser plugin extending QParserPlugin has own instance of standardPlugins. This leads to cyclic dependencies of static fields and to case when NAME field is not yet initialized. This result to NPE during initialization. For every plugin, listed here, NAME field has to be final and static.

Constructor Detail

QParserPlugin

public QParserPlugin()

Method Detail

createParser

public abstract QParser createParser(String qstr,
                                     SolrParams localParams,
                                     SolrParams params,
                                     SolrQueryRequest req)

return a QParser

getName

public String getName()

Description copied from interface: SolrInfoMBean

Simple common usage name, e.g. BasicQueryHandler, or fully qualified clas name.

Specified by:

getName in interface SolrInfoMBean

getVersion

public String getVersion()

Description copied from interface: SolrInfoMBean

Simple common usage version, e.g. 2.0

Specified by:

getVersion in interface SolrInfoMBean

getDescription

public String getDescription()

Description copied from interface: SolrInfoMBean

Simple one or two line description

Specified by:

getDescription in interface SolrInfoMBean

getCategory

public SolrInfoMBean.Category getCategory()

Description copied from interface: SolrInfoMBean

Purpose of this Class

Specified by:

getCategory in interface SolrInfoMBean

getSource

public String getSource()

Description copied from interface: SolrInfoMBean

CVS Source, SVN Source, etc

Specified by:

getSource in interface SolrInfoMBean

getDocs

public URL[] getDocs()

Description copied from interface: SolrInfoMBean

Documentation URL list.

Suggested documentation URLs: Homepage for sponsoring project, FAQ on class usage, Design doc for class, Wiki, bug reporting URL, etc...

Specified by:

getDocs in interface SolrInfoMBean

getStatistics

public NamedList getStatistics()

Description copied from interface: SolrInfoMBean

Any statistics this instance would like to be publicly available via the Solr Administration interface.

Any Object type may be stored in the list, but only the toString() representation will be used.

Specified by:

getStatistics in interface SolrInfoMBean