com.antelmann.util
Interface PatternExtractor<TYPE,PATTERN>

Type Parameters:

TYPE - the object type that this class can process

PATTERN - the type of object that is extracted from an object.

All Known Implementing Classes:

FileTableModel, HtmlEmailExtractor

public interface PatternExtractor<TYPE,PATTERN>

PatternExtractor provides a way to group objects by a pattern defined by an implementation. Examples for such a pattern would be a hash code, the toString() method or more object specific things, like group Date objects by their month.

Author:

Holger Antelmann

Field Summary

static PatternExtractor<Object,Object>	SELF_EXTRACTOR
static PatternExtractor<Object,String>	STRING_EXTRACTOR

Method Summary

PATTERN

extractPattern(TYPE originalObject) extracts a defined pattern from the given object.

Field Detail

STRING_EXTRACTOR

static final PatternExtractor<Object,String> STRING_EXTRACTOR

SELF_EXTRACTOR

static final PatternExtractor<Object,Object> SELF_EXTRACTOR

Method Detail

extractPattern

PATTERN extractPattern(TYPE originalObject)

extracts a defined pattern from the given object. Depending on implementation, this method may also be allowed to return null.

Returns:

the pattern that results from extracting the relevant information from the original type.