DBPowder-web: Web Application Development Framework with RDBMS

Transcription

1 DEWS2006 4A-o4 DBPowder-web: RDBMS tadashi.murakami@kek.jp DBPowder-web RDBMS RDBMS RDBMS CRUD (Create,Read,Update,Delete) DBPowder-web CRUD DBPowder-web DBPowder-web Web,, DB,,, DBPowder-web: Web Application Development Framework with RDBMS Tadashi MURAKAMI Computing Research Center, High Energy Accelerator Research Organization (KEK) 1 1 Oho, Tsukuba, Ibaraki, Japan tadashi.murakami@kek.jp Abstract We propose DBPowder-web, a web application development framework with RDBMS. In the development of web applications, we need not only web techniques but also RDBMS techniques, object-oriented language techniques, and so on. These requirements bring complexity and low maintainability to the development, especially CRUD(Create, Read, Update, Delete) functions on RDBMS. There are some web application frameworks which enlighten to these problems. However, these frameworks also have problems: one of them restricts scalability, the other itself complex, and so on. DBPowder-web creates web application skeletons which have CRUD functions based on a data-schema. DBPowder-web is able to recreate skeletons when structures of the data-schema are changed. Furthermore, developers can add functions to the skeletons using the APIs of DBPowder-web. These simplify and bring scalability developing web applications. We developed a DBPowder-web prototype system and evaluated it. Key words Web and Internet, dealing with contents, DB modeling language, development, framework, model-driven development 1. RDBMS RDBMS CRUD (Create,Read,Update,Delete) RDBMS

2 Layer 1 Customizing template web applications Layer 2 Using Wizards to create related sets of components Layer 3 Designing via WYSIWYG, direct manipulation, parameter forms Layer 4 Editing layout code(similar to HTML, ASP.NET, JSF) Layer 5 Editing high-level behavior code Layer 6 Modifying and extending the underlying component framework Layer 7 Editing PHP code 1 Click gentle slope of complexity DBPowder-web DBPowder-web DBPowder Model Description Language(DBPowder-MDL) DBPowder-MDL DBPowder-MDL RDBMS DBPowder-web 2 3 DBPowder-web Smalltalk Model-View-Controller programming [10] -- [9]( MVC) MVC (M) (V) (C) Celi Web Modeling Language(WebML) [1] [13] WebML MVC M:Structural Model, V:Composition Model, C:Navigation Model XML CASE Rode Click [8] phpclick [15] Click gentle slope of complexity Layer1 Layer7 ( 1) SuperSQL [14] [18] SuperSQL SQL SuperSQL html, LaTeX, Excel SuperSQL [19] [20] 2. 2 perl PHP tomcat3.0 PHP Java Ruby, Python, VBScript MVC html CSS, JavaScript echo, print ACID RDBMS SQL html SQL MVC MVC RDBMS RDBMS ACID RDBMS O/R Oracle TopLink [3] Hibernate [7] Enterprise JavaBeans CMP [11] html html html

3 html <input type= text name= $username > html Template Module Apply variable 3 RDBMS CREATE TABLE USER( USERNAME VARCHAR(32), 1 ) Data Container 2 String username; DB Access Module SQL Query 1 DB 1 Struts [4] JSF [12] 2005 MVC Dependency Injection [2] [2] Struts Hibernate Spring [17] Seasar [5] CRUD(Create, Read, Update, Delete) Ruby on Rails [6] RIFE [16] phpclick MVC 1 DB 1 RDBMS USER USERNAME html 5 MVC Spring Seasar Ruby on Rails, RIFE, phpclick 4. 6 ACID 3. RDBMS DBPowder-web 3. 1 CRUD RDBMS DBPowder-web DBPowder-web 2 DBPowder-web DBPowder Model Description Language(DBPowder-MDL: 2) DBPowder-MDL RDBMS SQL CREATE ( 3) DBPowder-MDL DBPowder-web ( powder-code) ( user-code) user-code user-code powder-code O/R

4 YOU Only Write dbpowder-mdl Configuration of data schema Auto Generates SQL Create Script Can Modify html <input type= text name= $username > html Template Module Apply variable Auto Generates View Auto Generates Auto Generates Model Data Container String username; RDBMS Auto Create-Tables CREATE TABLE USER( USERNAME VARCHAR(32), ) O/R Mapping Module SQL Query Action Definition Module Controller Web Application (Read, Update, Delete) 2 DBPowder-web user-code powder-code DBPowder-web DBPowder-web DBPowder-MDL 2. 2 powder-code user-code powder-code DBPowder Model Description Language(DBPowder- MDL) DBPowder-web DBPowder Model Description Language(DBPowder-MDL) DBPowder-MDL ( ) [ ] 2 DBPowder-MDL ( ) <=> 1 1 < > 1 [ ] 1 [query_user_ans] number9 user_id text64 mail_addr (query) datetime ans_datetime text64 user_agent text4096 freetext [query_user_ans_select<+>] (query_select) text512 user_select_comment [query] text64 query_name text64 query_title text4096 query_text_top text4096 query_text_bottom number9 duplicate_num text4096 freetext_desc text128 mail_subject [query_select<+>] number9 select_id text4096 select_text number9 allow_text 2 DBPowder-MDL( ) <+> 1

5 create table query_user_ans ( query_user_ans_id int AI PK, query_id user_id mail_addr varchar(64), ans_datetime datetime, user_agent varchar(64), freetext varchar(4096) ) ENGINE=InnoDB DEFAULT CHARSET=utf8; create table query ( query_id int AI PK, query_name varchar(64), query_title varchar(64), query_text_top varchar(4096), query_text_bottom varchar(4096), duplicate_num freetext_desc varchar(4096), mail_subject varchar(128) ) ENGINE=InnoDB DEFAULT CHARSET=utf8; create table query_select ( query_select_id int AI PK, query_id select_id select_text varchar(4096), allow_text int ) ENGINE=InnoDB DEFAULT CHARSET=utf8; create table query_user_ans_select ( query_user_ans_select_id int AI PK, query_user_ans_id query_select_id user_select_comment varchar(512) ) ENGINE=InnoDB DEFAULT CHARSET=utf8; (PRIMARY PEY PK ) (AUTO INCREMENT AI ) 3 DBPowder-MDL( 2) SQL CREATE <*> < > ( ) [ ] OR DBPowder-MDL RDBMS ID RDBMS 3. 3 DBPowder-web DBPowder-web DBPowder-MDL RDBMS SQL CREATE CRUD ( 2) DBPowder-MDL CRUD powder-code user-code powder-code user-code DBPowder-MDL RDBMS O/R DBPowder-MDL O/R user-code O/R where O/R SQL where O/R Action Definition Module html Template Module DBPowder-MDL O/R DBPowder-MDL Action Definition Module html Template Module DBPowder-MDL Action Definition Module html Template Module Action Definition Module html Template Module user-code 4. DBPowder-web

6 3 : 4 : Java 2 Platform, Standard Edition (J2SE) 5.0 RDBMS MySQL 5.0 tomcat 5.0 Struts DBPowder-web 4. 3 DBPowder-MDL DBPowder-web 3 DBPowder-web ( 4) Java 2 Platform, Standard Edition (J2SE) 5.0 RDBMS MySQL 5.0 tomcat5.0 Struts1.2.8 [4] 3 DBPowder-mdl RDBMS 4. 2 DBPowder-web 4. 1 DBPowder-web 2 ( 3) ( 4) ( 3) 5 DBPowder-web 3 20 ( 4) RDBMS RDBMS 1 RDBMS 2 2 DBPowder-MDL DBPowder-web user-code 4. 3 DBPowder-MDL DBPowder-MDL 1 1, 1 n, n m 1 DBPowder-web 2 DBPowder-web

7 3 DBPowder-MDL n m DBPowder-MDL DBPowder-MDL DBPowder-web number, text, datetime 3 2 DBPowder-MDL SQL CREATE DBPowder-MDL SQL CREATE DBPowder-MDL SQL CREATE Struts [4] DBPowder-web Struts powder-code user-code DBPowder-web Struts DBPowder-web Struts DBPowder-web DBPowder-MDL MVC DBPowder-MDL CRUD DBPowder-web DBPowder-web O/R SQL RDBMS DBPowder-web O/R 3. 1 user-code DBPowder-web DBPowder-MDL 4. 3, 4. 4 DBPowder-web DBPowder-web 4. 6 DBPowder-web DBPowder-web 4. 5 DBPowder-web O/R [3] [7] [11] O/R 1 DB Access Module RDBMS XML XML RDBMS DBPowder-web DBPowder-MDL Ruby on Rails [6] RIFE [16] phpclick [8] RDBMS DBPowder-web 4. 4 Struts [4] 4. 5 user-code SuperSQL [14] DBPowder-web MVC Microsoft.NET Framework Oracle JDeveloper, IBM Rational Web Developer for WebSphere Software, WebRatio [13]

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