SAP ABAP Class CL_ESH_QP_EN_STEMMER (Algorithmic Stemmer)

Hierarchy

☛ SAP_BASIS (Software Component) SAP Basis Component
   ⤷ BC-EIM-ESH (Application Component) NetWeaver Enterprise Search
     ⤷ S_ESH_ENG_QUERY_PARSER_RD (Package) Recursive descent query parser

Meta Relationship - Using

#	Relationship type	Using	Short Description	Created on
1	Inheritance (c INHERITING FROM c_ref)	CL_ESH_QP_STEMMER	Algorithmic Stemmer	20091027

Properties

Class	CL_ESH_QP_EN_STEMMER
Short Description	Algorithmic Stemmer
Super Class	CL_ESH_QP_STEMMER	Algorithmic Stemmer
Instantiability of a Class	2	Public
Final	☑

General Data

Message Class
Program status
Category	0
Package	S_ESH_ENG_QUERY_PARSER_RD	Recursive descent query parser
Created	20090813	SAP
Last change	20110908	SAP
Shared Memory-enabled	☐
Fixed point arithmetic	☑
Unicode checks active	☑

Forward declarations

#	Type group / Object type	Type	Type Description
1	ABAP	Type group use (TYPE-POOLS tp)	Type group use (TYPE-POOLS tp)

Interfaces

Class CL_ESH_QP_EN_STEMMER has no interface implemented.

Friends

Class CL_ESH_QP_EN_STEMMER has no friend class.

Attributes

#	Attribute	Level	Visibility	Read only	Typing	Associated Type	Initial Value	Description	Created on
1	MT_EXCEPTIONS	Static Attribute	Private	☐	Type reference (TYPE)	LTT_STEM_EXCEPTIONS		Stem exceptions	20090813
2	MT_STEM_STEP_2	Static Attribute	Private	☐	Type reference (TYPE)	LTT_STEM_STEPS		Stemmer steps	20090813
3	MT_STEM_STEP_3	Static Attribute	Private	☐	Type reference (TYPE)	LTT_STEM_STEPS		Stemmer steps	20090813
4	MT_STEM_STEP_4	Static Attribute	Private	☐	Type reference (TYPE)	LTT_STEM_STEPS		Stemmer steps	20090813
5	MV_CHARS_LI_ENDING	Constant	Private	☐	Type reference (TYPE)	STRING	'cdeghkmnrt'		20090813
6	MV_CHARS_VOWEL	Constant	Private	☐	Type reference (TYPE)	STRING	'aeiouy'		20090813
7	MV_REGEX_DOUBLE	Static Attribute	Private	☐	Object reference (TYPE REF TO)	CL_ABAP_REGEX		Regular expressions	20090813

Methods

#	Method	Level	Visibility	Method type	Description	Created on
1	CONSTRUCTOR	Instance method	Public	Constructor	Constructor	20090813
2	CONSTRUCTOR_SAVE	Static method	Public	Method		20091027
3	CONTAINS_VOWEL	Static method	Private	Method	Contains char	20090813
4	DELETE_SUFFIX	Static method	Private	Method	Replace suffix	20090813
5	DELETE_SUFFIX_BY_LENGTH	Static method	Private	Method	Replace suffix	20090813
6	GET_STEM_SAVE	Instance method	Public	Method	Get stem	20091027
7	INSERT_STEP	Static method	Private	Method		20090813
8	IS_SHORT_SYLLABLE	Static method	Private	Method	Is short	20090813
9	IS_SHORT_WORD	Static method	Private	Method	Is short	20090813
10	MATCH_SUFFIX	Static method	Private	Method	Replace suffix	20090813
11	MATCH_SUFFIX_IN_REGION	Static method	Private	Method	Replace suffix	20090813
12	NORMALIZE	Static method	Private	Method		20090813
13	REPLACE_ALL	Static method	Private	Method	Replace all occurences of pattern in text with substitute	20090813
14	REPLACE_SUFFIX	Static method	Private	Method	Replace suffix	20090813
15	REPLACE_SUFFIX_1B	Static method	Private	Method	Replace suffix	20090813
16	REPLACE_SUFFIX_BY_LENGTH	Static method	Private	Method	Replace suffix	20090813
17	REPLACE_SUFFIX_IN_REGION	Static method	Private	Method	Replace suffix	20090813
18	SET_R1	Static method	Private	Method	Set region R1	20090813
19	SET_R2	Static method	Private	Method	Set region R2	20090813

Events

Class CL_ESH_QP_EN_STEMMER has no event.

Types

Class CL_ESH_QP_EN_STEMMER has no local type.

Method Signatures

Method CONSTRUCTOR Signature

Method CONSTRUCTOR on class CL_ESH_QP_EN_STEMMER has no parameter.

#	Exception	Resumable	Description	Created on
1	CX_ESH_QP_STEMMER	☐	Stemmer Exception	20090813

Method CONSTRUCTOR_SAVE Signature

Method CONSTRUCTOR_SAVE on class CL_ESH_QP_EN_STEMMER has no parameter.

#	Exception	Resumable	Description	Created on
1	CX_ESH_QP_STEMMER	☐	Stemmer Exception	20091027

Method CONTAINS_VOWEL Signature

#	Type	Parameter	Pass Value	Optional	Typing Method	Associated Type	Default value	Description	Created on
1	Importing	IV_LEN	Call by reference	☐	Type reference (TYPE)	I			20090813
2	Importing	IV_OFF	Call by reference	☐	Type reference (TYPE)	I			20090813
3	Importing	IV_TEXT	Call by reference	☐	Type reference (TYPE)	STRING			20090813
4	Returning	RV_STATUS	Value transfer	☐	Type reference (TYPE)	ABAP_BOOL			20090813

Method CONTAINS_VOWEL on class CL_ESH_QP_EN_STEMMER has no exception.

Method DELETE_SUFFIX Signature

#	Type	Parameter	Pass Value	Optional	Typing Method	Associated Type	Default value	Description	Created on
1	Changing	CV_TEXT	Call by reference	☐	Type reference (TYPE)	STRING			20090813
2	Exporting	EV_DELETED_FLAG	Call by reference	☐	Type reference (TYPE)	ABAP_BOOL			20090813
3	Importing	IV_SUFFIX	Call by reference	☐	Type reference (TYPE)	CHAR32			20090813

Method DELETE_SUFFIX on class CL_ESH_QP_EN_STEMMER has no exception.

Method DELETE_SUFFIX_BY_LENGTH Signature

#	Type	Parameter	Pass Value	Optional	Typing Method	Associated Type	Default value	Description	Created on
1	Changing	CV_TEXT	Call by reference	☐	Type reference (TYPE)	STRING			20090813
2	Exporting	EV_DELETED_FLAG	Call by reference	☐	Type reference (TYPE)	ABAP_BOOL			20090813
3	Importing	IV_SUFFIX_LEN	Call by reference	☐	Type reference (TYPE)	I			20090813

Method DELETE_SUFFIX_BY_LENGTH on class CL_ESH_QP_EN_STEMMER has no exception.

Method GET_STEM_SAVE Signature

#	Type	Parameter	Pass Value	Optional	Typing Method	Associated Type	Default value	Description	Created on
1	Importing	IV_WORD	Call by reference	☐	Type reference (TYPE)	STRING			20091027
2	Returning	RT_STEM	Value transfer	☐	Type reference (TYPE)	STRING			20091027

Method GET_STEM_SAVE on class CL_ESH_QP_EN_STEMMER has no exception.

Method INSERT_STEP Signature

#	Type	Parameter	Pass Value	Optional	Typing Method	Associated Type	Default value	Description	Created on
1	Changing	CT_STEPS	Call by reference	☐	Type reference (TYPE)	LTT_STEM_STEPS		Stem Steps	20090813
2	Importing	IV_REPLACEMENT	Call by reference	☐	Type reference (TYPE)	CHAR32		Character field, length 32	20090813
3	Importing	IV_SUFFIX	Call by reference	☐	Type reference (TYPE)	CHAR32		Character field, length 32	20090813

Method INSERT_STEP on class CL_ESH_QP_EN_STEMMER has no exception.

Method IS_SHORT_SYLLABLE Signature

#	Type	Parameter	Pass Value	Optional	Typing Method	Associated Type	Default value	Description	Created on
1	Importing	IV_SYLLABLE	Call by reference	☐	Type reference (TYPE)	STRING			20090813
2	Returning	RV_SUCCESS	Value transfer	☐	Type reference (TYPE)	ABAP_BOOL			20090813

Method IS_SHORT_SYLLABLE on class CL_ESH_QP_EN_STEMMER has no exception.

Method IS_SHORT_WORD Signature

#	Type	Parameter	Pass Value	Optional	Typing Method	Associated Type	Default value	Description	Created on
1	Importing	IV_R1	Call by reference	☐	Type reference (TYPE)	I			20090813
2	Importing	IV_WORD	Call by reference	☐	Type reference (TYPE)	STRING			20090813
3	Returning	RV_SUCCESS	Value transfer	☐	Type reference (TYPE)	ABAP_BOOL			20090813

Method IS_SHORT_WORD on class CL_ESH_QP_EN_STEMMER has no exception.

Method MATCH_SUFFIX Signature

#	Type	Parameter	Pass Value	Optional	Typing Method	Associated Type	Default value	Description	Created on
1	Importing	IV_SUFFIX	Call by reference	☐	Type reference (TYPE)	CHAR32			20090813
2	Importing	IV_TEXT	Call by reference	☐	Type reference (TYPE)	STRING			20090813
3	Returning	RV_MATCHED_FLAG	Value transfer	☐	Type reference (TYPE)	ABAP_BOOL			20090813

Method MATCH_SUFFIX on class CL_ESH_QP_EN_STEMMER has no exception.

Method MATCH_SUFFIX_IN_REGION Signature

#	Type	Parameter	Pass Value	Optional	Typing Method	Associated Type	Default value	Description	Created on
1	Exporting	EV_LEN	Call by reference	☐	Type reference (TYPE)	I		Length of suffix matched (regex)	20090813
2	Exporting	EV_MATCHED_FLAG	Call by reference	☐	Type reference (TYPE)	ABAP_BOOL			20090813
3	Exporting	EV_MATCHED_IN_REGION_FLAG	Call by reference	☐	Type reference (TYPE)	ABAP_BOOL			20090813
4	Importing	IV_OFF	Call by reference	☐	Type reference (TYPE)	I			20090813
5	Importing	IV_SUFFIX	Call by reference	☑	Type reference (TYPE)	CHAR32		Afffix	20090813
6	Importing	IV_SUFFIX_REGEX	Call by reference	☑	Type reference (TYPE)	STRING			20090813
7	Importing	IV_TEXT	Call by reference	☐	Type reference (TYPE)	STRING			20090813

Method MATCH_SUFFIX_IN_REGION on class CL_ESH_QP_EN_STEMMER has no exception.

Method NORMALIZE Signature

#	Type	Parameter	Pass Value	Optional	Typing Method	Associated Type	Default value	Description	Created on
1	Importing	IV_STRING	Call by reference	☐	Type reference (TYPE)	STRING			20090813
2	Returning	RV_STRING	Value transfer	☐	Type reference (TYPE)	STRING			20090813

Method NORMALIZE on class CL_ESH_QP_EN_STEMMER has no exception.

Method REPLACE_ALL Signature

#	Type	Parameter	Pass Value	Optional	Typing Method	Associated Type	Default value	Description	Created on
1	Importing	IV_PATTERN	Call by reference	☐	Type reference (TYPE)	CLIKE			20090813
2	Importing	IV_SUBSTITUTE	Call by reference	☐	Type reference (TYPE)	CLIKE			20090813
3	Importing	IV_TEXT	Call by reference	☐	Type reference (TYPE)	CLIKE			20090813
4	Returning	RV_NEWTEXT	Value transfer	☐	Type reference (TYPE)	STRING			20090813

Method REPLACE_ALL on class CL_ESH_QP_EN_STEMMER has no exception.

Method REPLACE_SUFFIX Signature

#	Type	Parameter	Pass Value	Optional	Typing Method	Associated Type	Default value	Description	Created on
1	Changing	CV_TEXT	Call by reference	☐	Type reference (TYPE)	STRING			20090813
2	Exporting	EV_REPLACED_FLAG	Call by reference	☐	Type reference (TYPE)	ABAP_BOOL			20090813
3	Importing	IV_NEW	Call by reference	☐	Type reference (TYPE)	CHAR32		Afffix	20090813
4	Importing	IV_SUFFIX	Call by reference	☐	Type reference (TYPE)	CHAR32		Afffix	20090813

Method REPLACE_SUFFIX on class CL_ESH_QP_EN_STEMMER has no exception.

Method REPLACE_SUFFIX_1B Signature

#	Type	Parameter	Pass Value	Optional	Typing Method	Associated Type	Default value	Description	Created on
1	Changing	CV_TEXT	Call by reference	☐	Type reference (TYPE)	STRING			20090813
2	Exporting	EV_MATCHED_FLAG	Call by reference	☐	Type reference (TYPE)	ABAP_BOOL			20090813
3	Exporting	EV_REPLACED_FLAG	Call by reference	☐	Type reference (TYPE)	ABAP_BOOL			20090813
4	Importing	IV_R1	Call by reference	☐	Type reference (TYPE)	I			20090813
5	Importing	IV_SUFFIX	Call by reference	☐	Type reference (TYPE)	CHAR32		Afffix	20090813

Method REPLACE_SUFFIX_1B on class CL_ESH_QP_EN_STEMMER has no exception.

Method REPLACE_SUFFIX_BY_LENGTH Signature

#	Type	Parameter	Pass Value	Optional	Typing Method	Associated Type	Default value	Description	Created on
1	Changing	CV_TEXT	Call by reference	☐	Type reference (TYPE)	STRING			20090813
2	Exporting	EV_REPLACED_FLAG	Call by reference	☐	Type reference (TYPE)	ABAP_BOOL			20090813
3	Importing	IV_NEW	Call by reference	☐	Type reference (TYPE)	CHAR32		Afffix	20090813
4	Importing	IV_SUFFIX_LEN	Call by reference	☐	Type reference (TYPE)	I			20090813

Method REPLACE_SUFFIX_BY_LENGTH on class CL_ESH_QP_EN_STEMMER has no exception.

Method REPLACE_SUFFIX_IN_REGION Signature

#	Type	Parameter	Pass Value	Optional	Typing Method	Associated Type	Default value	Description	Created on
1	Changing	CV_TEXT	Call by reference	☐	Type reference (TYPE)	STRING			20090813
2	Exporting	EV_MATCHED_FLAG	Call by reference	☐	Type reference (TYPE)	ABAP_BOOL			20090813
3	Exporting	EV_REPLACED_FLAG	Call by reference	☐	Type reference (TYPE)	ABAP_BOOL			20090813
4	Importing	IV_NEW	Call by reference	☐	Type reference (TYPE)	CHAR32		Afffix	20090813
5	Importing	IV_OFF	Call by reference	☐	Type reference (TYPE)	I			20090813
6	Importing	IV_SUFFIX	Call by reference	☑	Type reference (TYPE)	CHAR32		Afffix	20090813
7	Importing	IV_SUFFIX_REGEX	Call by reference	☑	Type reference (TYPE)	STRING			20090813

Method REPLACE_SUFFIX_IN_REGION on class CL_ESH_QP_EN_STEMMER has no exception.

Method SET_R1 Signature

#	Type	Parameter	Pass Value	Optional	Typing Method	Associated Type	Default value	Description	Created on
1	Importing	IV_WORD	Call by reference	☐	Type reference (TYPE)	STRING			20090813
2	Returning	RV_R1	Value transfer	☐	Type reference (TYPE)	I			20090813

Method SET_R1 on class CL_ESH_QP_EN_STEMMER has no exception.

Method SET_R2 Signature

#	Type	Parameter	Pass Value	Optional	Typing Method	Associated Type	Default value	Description	Created on
1	Importing	IV_R1	Call by reference	☐	Type reference (TYPE)	I			20090813
2	Importing	IV_WORD	Call by reference	☐	Type reference (TYPE)	STRING			20090813
3	Returning	RV_R2	Value transfer	☐	Type reference (TYPE)	I			20090813

Method SET_R2 on class CL_ESH_QP_EN_STEMMER has no exception.

History

Last changed by/on	SAP	20110908
SAP Release Created in	730