Dsl&Builder

DSL&Builder Grails Code Reading 2008/05/23 上原潤二

ＤＳＬ ,[object Object],[object Object],[object Object]

API と DSL ,[object Object],[object Object],[object Object]

DSL の利点 ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

内部 DSL ,[object Object],[object Object],[object Object],[object Object]

DSL の問題点 ,[object Object],[object Object],[object Object]

DSL にべんりな Groovy ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Builder とは何か ,[object Object],[object Object]

ビルダー記述の一般構造 ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

ビルダー分類学 (1) ,[object Object],[object Object],[object Object],[object Object],自前方式のものを「ビルダー」と呼べるかはやや?だがここでは「広義のビルダー」としておく。

ビルダー分類学 (2) ,[object Object],[object Object],[object Object],[object Object],[object Object]

ビルダー実例 ConfigSlurper CliBuilder 自前方式 Grails のビルダーたち constraints, UrlMapping, BeanBuilder,WebBeanBuilder, FlowBuilder, HibernateMappingBuilder, HibernateCriteriaBuilder, JSonBuilder FactoryBuilderSupport を継承 -> SwingBuilder, ObjectGraphBuilder, JmxBuilder BuilderSupport を継承 -> MarkupBuilder, DOMBuilder, AntBuilder, SAXBuilder, NodeBuilder 支援クラスを使用メソッド名静的メソッド名動的

ビルダーを作ろう！ Let's Build a Builder!

ビルダー DSL の基本構造 ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

実例紹介 ,[object Object],[object Object],[object Object]

MarkupBuilder ,[object Object],[object Object],groovy-1.6-beta-1/src/main/groovy/xml/MarkupBuilder.java

BuilderSupport ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],groovy-1.6-beta-1/src/main/groovy/util/BuilderSupport.java

UrlMappingBuilder(1) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],grails-1.0-RC1/src/grails/grails-app/conf/UrlMappings.groovy

UrlMappingBuilder(2) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],grails-1.0-RC1/src/web/org/codehaus/groovy/grails/web/mapping/DefaultUrlMappingEvaluator.java

種明かし ,[object Object],[object Object],[object Object],[object Object],[object Object]

ビルダーを作ってみよう ,[object Object],[object Object],robot { body(texture:"gcrlogo.png") { head(texture:"earth.jpg") arm(x:-0.25){} leg(dummy:0) } } TransformGroup createArm(x, y, armLength, armWidth, dx=0, dy=0, dz=0, tx=null) { def trans = transformGroupBase() def shoulder = new Sphere(0.15f, Primitive.GENERATE_TEXTURE_COORDS | Primitive.GENERATE_NORMALS | Primitive.ENABLE_GEOMETRY_PICKING, createAppearance(tx)) def idou = new Transform3D(); idou.setTranslation(new Vector3d(x , y, 0)) def kaitenX = new Transform3D(); kaitenX.rotX(Math.PI*dx) def kaitenY = new Transform3D(); kaitenY.rotY(Math.PI*dy) def kaitenZ = new Transform3D(); kaitenZ.rotZ(Math.PI*dz) idou.mul(kaitenX); idou.mul(kaitenY); idou.mul(kaitenZ) trans.setTransform(idou); trans.addChild(shoulder) def trans2 = transformGroupBase(false) def arm = new Cylinder(0.1f, armLength as float, Primitive.GENERATE_TEXTURE_COORDS | Primitive.GENERATE_NORMALS | Primitive.ENABLE_GEOMETRY_PICKING, createAppearance(tx)) def idou2 = new Transform3D() idou2.setTranslation(new Vector3d(0, -armLength/2, 0)) trans2.setTransform(idou2) trans2.addChild(arm); trans.addChild(trans2) ; return trans } 以下のコードが１行に対応

TIPS ,[object Object],[object Object],[object Object]

まとめ ,[object Object],[object Object],[object Object],[object Object],[object Object],めんどうな3D処理を DSLでwrap (ﾟДﾟ) ウマー Webアプリ３階層システムを Grailsが提供するDSLでwrap (ﾟДﾟ) ウマー

参考リンク ,[object Object],[object Object],[object Object],[object Object]

Dsl&Builder

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Dsl&Builder