Package org.imixs.workflow.engine.lucene

Class LuceneItemAdapter

java.lang.Object

org.imixs.workflow.engine.lucene.LuceneItemAdapter

@Named
public class LuceneItemAdapter
extends Object

The LuceneItemAdapter is a CDI bean, providing methods to convert the value of an Imixs Item into a IndexableField. This kind of lucene fields can be stored in a Lucene Document.

You can overwrite the bean to provide an alternative method of value conversion.

Version:

1.1

Author:

rsoika

See Also:

• LuceneUdpateService#addItemValues

Constructor Summary

Constructors

Constructor	Description
LuceneItemAdapter()

Method Summary

Modifier and Type	Method	Description
org.apache.lucene.index.IndexableField	adaptItemValue(String itemName, Object itemValue, boolean doAnalyze)	Creates a Indexable Lucene Field to be added into a Lucene document.
org.apache.lucene.index.IndexableField	adaptItemValue(String itemName, Object itemValue, boolean doAnalyze, org.apache.lucene.document.Field.Store stored)	Creates a Indexable Lucene Field to be added into a Lucene document.
org.apache.lucene.document.SortedDocValuesField	adaptSortableItemValue(String itemName, Object itemValue)	This method converts an ItemValue into a SortedDocValuesField.
String	convertItemValue(Object itemValue)	This method converts a ItemValue into a indexable text format.

Methods inherited from class java.lang.Object

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

Constructor Details

LuceneItemAdapter

public LuceneItemAdapter()

Method Details

adaptItemValue

public org.apache.lucene.index.IndexableField adaptItemValue(String itemName,
 Object itemValue,
 boolean doAnalyze)

Creates a Indexable Lucene Field to be added into a Lucene document. The content of the itemValue will be converted. Depending on the parameter doAnalye a TextField or a StringField is created. The later is used for exact match.

The item value will not be stored into the lucene document

Parameters:

itemName - - name of the item will be used as the doc field name

itemValue - - the item value which will be converted by the method convertItemValue

doAnalyze - - if true the content will by analyzed by the LuceneAnalyzer configured in the IndexWriter

Returns:

adaptItemValue

public org.apache.lucene.index.IndexableField adaptItemValue(String itemName,
 Object itemValue,
 boolean doAnalyze,
 org.apache.lucene.document.Field.Store stored)

Creates a Indexable Lucene Field to be added into a Lucene document. The content of the itemValue will be converted. Depending on the parameter doAnalye a TextField or a StringField is created. The later is used for exact match.

The parameter 'store' indicates if Lucene should store the item value in the document

Store.NO - Store.YES

Parameters:

itemName - - name of the item will be used as the doc field name

itemValue - - the item value which will be converted by the method convertItemValue

doAnalyze - - if true the content will by analyzed by the LuceneAnalyzer configured in the IndexWriter

Returns:

adaptSortableItemValue

public org.apache.lucene.document.SortedDocValuesField adaptSortableItemValue(String itemName,
 Object itemValue)

This method converts an ItemValue into a SortedDocValuesField.

Parameters:

itemName - - name of the item will be used as the doc field name

itemValue - - the item value which will be converted by the method convertItemValue

Returns:

SortedDocValuesField

convertItemValue

public String convertItemValue(Object itemValue)

This method converts a ItemValue into a indexable text format. This method currently converts only Calendar and Date objects into a Luncene string representation of a date time value

Parameters:

itemValue - - object to be converted into a string

Returns:

string value