org.compass.core.impl
Class DefaultCompassHighlighter

java.lang.Object
  org.compass.core.impl.DefaultCompassHighlighter

All Implemented Interfaces:

CompassHighlighter

public class DefaultCompassHighlighter
extends Object
implements CompassHighlighter

Author:

kimchy

Nested Class Summary

Nested classes/interfaces inherited from interface org.compass.core.CompassHighlighter

CompassHighlighter.TextTokenizer

Constructor Summary

DefaultCompassHighlighter(InternalCompassSession session, SearchEngineHighlighter highlighter, Resource resource)

Method Summary

String	fragment(String propertyName) Returns the best highlighted fragment for the given property name / meta-data.
String	fragment(String propertyName, String text) Returns the best highlighted fragment for the given property name / meta-data.
String[]	fragments(String propertyName) Returns the best highlighted fragments for the given property name / meta-data.
String[]	fragments(String propertyName, String text) Returns the best highlighted fragments for the given property name / meta-data.
String	fragmentsWithSeparator(String propertyName) Returns the best highlighted fragments for the given property name / meta-data, speparated with the given separator.
String	fragmentsWithSeparator(String propertyName, String text) Returns the best highlighted fragments for the given property name / meta-data, speparated with the given separator.
CompassHighlighter	setAnalyzer(Resource resource) Sets the analyzer that will be used if analysis of the text is needed (see CompassHighlighter.TextTokenizer).
CompassHighlighter	setAnalyzer(String analyzerName) Sets the analyzer that will be used if analysis of the text is needed (see CompassHighlighter.TextTokenizer).
CompassHighlighter	setHighlighter(String highlighterName) Sets the highlighter that will be used out the ones set in the configuration.
CompassHighlighter	setMaxBytesToAnalyze(int maxBytesToAnalyze) Sets the maximum number of bytes that will be analyzed for highlighting.
CompassHighlighter	setMaxNumFragments(int maxNumFragments) Sets the maximum number of fragments that can be returned or combined to a separator.
CompassHighlighter	setSeparator(String separator) Sets the separator string that will be used to combine different fragments in CompassHighlighter.fragmentsWithSeparator(String).
CompassHighlighter	setTextTokenizer(CompassHighlighter.TextTokenizer textTokenizer) Sets how the text will be tokenized for highlighting.

Methods inherited from class java.lang.Object

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

Constructor Detail

DefaultCompassHighlighter

public DefaultCompassHighlighter(InternalCompassSession session,
                                 SearchEngineHighlighter highlighter,
                                 Resource resource)

Method Detail

setAnalyzer

public CompassHighlighter setAnalyzer(String analyzerName)
                               throws CompassException

Description copied from interface: CompassHighlighter

Sets the analyzer that will be used if analysis of the text is needed (see CompassHighlighter.TextTokenizer).

Specified by:

setAnalyzer in interface CompassHighlighter

Parameters:

analyzerName - The analyzer name that will be used.

Returns:

the highlighter

Throws:

CompassException

setAnalyzer

public CompassHighlighter setAnalyzer(Resource resource)
                               throws CompassException

Description copied from interface: CompassHighlighter

Sets the analyzer that will be used if analysis of the text is needed (see CompassHighlighter.TextTokenizer). Uses the resource to derive the analyzer that will be used (works also with per resource property analyzer).

Specified by:

setAnalyzer in interface CompassHighlighter

Parameters:

resource - The resource to derive the analyzer from

Returns:

the highlighter

Throws:

CompassException

setHighlighter

public CompassHighlighter setHighlighter(String highlighterName)
                                  throws CompassException

Description copied from interface: CompassHighlighter

Sets the highlighter that will be used out the ones set in the configuration. The highlighters are groups of pre-set configurations for the sepcified highlighter. The default one is called default.

Specified by:

setHighlighter in interface CompassHighlighter

Parameters:

highlighterName - The name of the highlighter that will be used

Returns:

the higlighter

Throws:

CompassException

setSeparator

public CompassHighlighter setSeparator(String separator)
                                throws CompassException

Description copied from interface: CompassHighlighter

Sets the separator string that will be used to combine different fragments in CompassHighlighter.fragmentsWithSeparator(String). If not set, will use the separator configured for the chosen highlighter.

Specified by:

setSeparator in interface CompassHighlighter

Parameters:

separator - The separator used

Returns:

the highlighter

Throws:

CompassException

setMaxNumFragments

public CompassHighlighter setMaxNumFragments(int maxNumFragments)
                                      throws CompassException

Description copied from interface: CompassHighlighter

Sets the maximum number of fragments that can be returned or combined to a separator. If not set, will use the value configured for the chosen highlighter.

Specified by:

setMaxNumFragments in interface CompassHighlighter

Parameters:

maxNumFragments - The maximum number if fragments

Returns:

the highlighter

Throws:

CompassException

setMaxBytesToAnalyze

public CompassHighlighter setMaxBytesToAnalyze(int maxBytesToAnalyze)
                                        throws CompassException

Description copied from interface: CompassHighlighter

Sets the maximum number of bytes that will be analyzed for highlighting. If not set, will use the value configured for the chosen highlighter.

Specified by:

setMaxBytesToAnalyze in interface CompassHighlighter

Parameters:

maxBytesToAnalyze - The maximum number of bytes analyzed for highlighting

Returns:

the highlighter

Throws:

CompassException

setTextTokenizer

public CompassHighlighter setTextTokenizer(CompassHighlighter.TextTokenizer textTokenizer)
                                    throws CompassException

Description copied from interface: CompassHighlighter

Sets how the text will be tokenized for highlighting. If not set, will use the value configured for the chosen highlighter.

Specified by:

setTextTokenizer in interface CompassHighlighter

Parameters:

textTokenizer - How the text will be tokenized for highlighting

Returns:

the highlighter

Throws:

CompassException

fragment

public String fragment(String propertyName)
                throws CompassException

Description copied from interface: CompassHighlighter

Returns the best highlighted fragment for the given property name / meta-data. The highlighted text will be retrived from the index, so it must be stored.

Note, if there are more than one resource property name / meta-data with the same name, the text will be taken from the first one.

The name can either be the actual resource property or meta-data value, or the path to the given resource property (alias.rProperty), or the class property (alias.cProperty) or the path to the meta-data (alias.cProperty.metaData)

Specified by:

fragment in interface CompassHighlighter

Parameters:

propertyName - The resource property name / meta-data.

Returns:

The best fragment text highlighted.

Throws:

CompassException

fragment

public String fragment(String propertyName,
                       String text)
                throws CompassException

Description copied from interface: CompassHighlighter

Returns the best highlighted fragment for the given property name / meta-data. The given text will be used for highlight. Handy when the text is not stored in the index.

The name can either be the actual resource property or meta-data value, or the path to the given resource property (alias.rProperty), or the class property (alias.cProperty) or the path to the meta-data (alias.cProperty.metaData)

Specified by:

fragment in interface CompassHighlighter

Parameters:

propertyName - The resource property name / meta-data.

text - The text to be highlighted.

Returns:

The best fragment text highlighted.

Throws:

CompassException

fragments

public String[] fragments(String propertyName)
                   throws CompassException

Description copied from interface: CompassHighlighter

Returns the best highlighted fragments for the given property name / meta-data. The highlighted text will be retrived from the index, so it must be stored.

Note, that the number of fragments will be between 0 and maxNumFragments.

Note, if there are more than one resource property name / meta-data with the same name, the text will be taken from the first one.

The name can either be the actual resource property or meta-data value, or the path to the given resource property (alias.rProperty), or the class property (alias.cProperty) or the path to the meta-data (alias.cProperty.metaData)

Specified by:

fragments in interface CompassHighlighter

Parameters:

propertyName - The resource property name / meta-data.

Returns:

The best fragments highlighted.

Throws:

CompassException

fragments

public String[] fragments(String propertyName,
                          String text)
                   throws CompassException

Description copied from interface: CompassHighlighter

Returns the best highlighted fragments for the given property name / meta-data. The given text will be used for highlight.

Note, that the number of fragments will be between 0 and maxNumFragments.

The name can either be the actual resource property or meta-data value, or the path to the given resource property (alias.rProperty), or the class property (alias.cProperty) or the path to the meta-data (alias.cProperty.metaData)

Specified by:

fragments in interface CompassHighlighter

Parameters:

propertyName - The resource property name / meta-data.

text - The text to be highlighted.

Returns:

The best fragments highlighted.

Throws:

CompassException

fragmentsWithSeparator

public String fragmentsWithSeparator(String propertyName)
                              throws CompassException

Description copied from interface: CompassHighlighter

Returns the best highlighted fragments for the given property name / meta-data, speparated with the given separator. The highlighted text will be retrived from the index, so it must be stored.

Note, that the number of fragments will be between 0 and maxNumFragments.

Note, if there are more than one resource property name / meta-data with the same name, the text will be taken from the first one.

The name can either be the actual resource property or meta-data value, or the path to the given resource property (alias.rProperty), or the class property (alias.cProperty) or the path to the meta-data (alias.cProperty.metaData)

Specified by:

fragmentsWithSeparator in interface CompassHighlighter

Parameters:

propertyName - The resource property name / meta-data.

Returns:

The best fragments highlighted and separated.

Throws:

CompassException

fragmentsWithSeparator

public String fragmentsWithSeparator(String propertyName,
                                     String text)
                              throws CompassException

Description copied from interface: CompassHighlighter

Returns the best highlighted fragments for the given property name / meta-data, speparated with the given separator. The given text will be used for highlight.

Note, that the number of fragments will be between 0 and maxNumFragments.

The name can either be the actual resource property or meta-data value, or the path to the given resource property (alias.rProperty), or the class property (alias.cProperty) or the path to the meta-data (alias.cProperty.metaData)

Specified by:

fragmentsWithSeparator in interface CompassHighlighter

Parameters:

propertyName - The resource property name / meta-data.

text - The text to be highlighted.

Returns:

The best fragments highlighted and separated.

Throws:

CompassException