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\nHere are a few problems that I’ve encountered while spending a week programming in Siebel eScript 7.8.<\/p>\n
\nHere are a few problems that I’ve encountered while spending a week programming in Siebel eScript 7.8.<\/p>\n
\n\tSiebel eScript is ECMAScript compliant.
\n\tECMAScript is the standard implementation of JavaScript as defined by the ECMA-262 standard.
\n\tBeginning with Siebel Business Applications version 7.8, the script engine supports ECMAScript Edition 4.
\n\tYou can opt to use the updated functionality of this engine, including the Siebel ScriptAssist tool, or you can opt to leave this updated functionality inactive.
\n\thttp:\/\/docs.oracle.com\/cd\/B31104_02\/books\/eScript\/eScript_JSLOverview.html<\/cite>\n\t<\/p><\/blockquote>\n\tHere’s a link to ECMAScript Version 4.0. proposed draft<\/a>.
\n\tExample code for ES4.
\n\t<\/p>\n\r\ninterface I { function f() } \r\ninterface J { function g(n) } \r\nclass C implements I, J { \r\n\tfunction f() { return \"foo\" } \r\n\tfunction g(n) { return n+2 } \r\n} \r\n\t<\/pre>\n<\/code>
\n\tIt should be noted that most major web browsers abandoned ES4 due it the complexity of feature implementations.
\n\tSo even if your scripts pass jshint.com and jslint.com 100%, and works on all major browsers you still have the possibility of your code throwing an during execution.
\n\tSiebel eScript says it’s ECMA-262 compliant but I’ve found a few bugs in the engine that require some work around.\n\t<\/li>\n- \n\tDeveloping a simple way to unit test your code is essential.
\n\tHere’s a easy way to add test function to your library.
\n\t<\/p>\n\r\nfunction logThis( name, result ){\r\n\t\/\/ Log this values to a Property Set Object that get's converted to XML.\r\n\tAddParameterPS( logObjs.Outputs, name, result, \"logThis\");\r\n}\r\nfunction testThis( name, func ){\r\n\ttry{\r\n\t\tlogThis( \"Passed: \"+ name, func() );\r\n\t}\r\n\tcatch(e){\r\n\t\tlogThis( \"Failed: \"+ name, e );\r\n\t}\r\n}\r\n\t<\/pre>\n<\/code>
\n\tTest example
\n\t<\/p>\n\r\nfunction runTest(Input, Output){\r\n\r\n\ttestThis( \"Test strict equivalence support\", function(){\r\n\t\treturn \"1\" !== 1;\r\n\t});\r\n\t\/\/ This will fail since Siebel doesn't support the apply and call Object function calls.\r\n\ttestThis( \"Test isArray using call\", function(){\r\n\t\t\/\/ Siebel eScript: FAIL, Browser: Pass\r\n\t\tfunction isArray( arr ){\r\n\t\t\treturn Object.prototype.toString.call( obj ) == \"[Object Array]\";\r\n\t\t}\r\n\t});\r\n\ttestThis( \"Test isArray using instanceof\", function(){\r\n\t\t\/\/ Siebel eScript: Pass, Browser: Pass\r\n\t\tfunction isArray( arr ){\r\n\t\t\treturn arr instanceof Array;\r\n\t\t}\r\n\t});\r\n}\t\r\n\t<\/pre>\n<\/code>\n\t<\/li>\n
- \n\tSiebel Business Applications in high-interactivity mode requires an ActiveX plugin, which forces you to use Internet Explorer on Windows.\n\t<\/li>\n
- \n\tSiebel eScript has errors with it’s engine and it’s hard to debug eScripts for run-time business services.
\n\tHere’s a strange bug in Siebel eScript.
\n\tYou can’t create return objects when they are generated from a function attached to an object.
\n\tExample Code:
\n\t<\/p>\n\r\n\tvar x = {};\r\n\tx.getObj = function( a, b ){\r\n\t\tvar obj = function(){\r\n\t\t\tthis.x = a;\r\n\t\t\tthis.y = b;\r\n\t\t};\r\n\t\treturn new obj();\r\n\t};\r\n\tvar getObj = function( a, b ){\r\n\t\tvar obj = function(){\r\n\t\t\tthis.x = a;\r\n\t\t\tthis.y = b;\r\n\t\t};\r\n\t\treturn new obj();\r\n\t};\r\n\tvar arr = [];\r\n\tarr.push( getObj() );\t\/\/ successful\r\n\tarr.push( x.getObj() );\t\/\/ Run-time Error.\r\n\t<\/pre>\n<\/code>\n\t<\/li>\n
- \n\tSiebel eScript engine is pretty damn slow. So avoid writing these two performance killers.
\n\t1: Wrapping all your code within a closure.
\n\t2: Defining an object inside closure with the same name as an object in the outer scope.
\n\tExample:
\n\t<\/p>\n\r\n\tvar x = (function(){\r\n\t\tvar x = {\r\n\t\t\ta:1\r\n\t\t};\r\n\t\treturn x;\r\n\t}());\r\n\t<\/pre>\n<\/code>\n\t<\/li>\n<\/ol>\n
Siebel eScript Reference from Oracle.com:
\neScript Lanague Reference (2004 edition)<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"Here are a few problems that I’ve encountered while spending a week programming in Siebel eScript 7.8. Siebel eScript is ECMAScript compliant. ECMAScript is the standard implementation of JavaScript as defined by the ECMA-262 standard. Beginning with Siebel Business Applications version 7.8, the script engine supports ECMAScript Edition 4. You can opt to use the … Continue reading Siebel eScript headaches.<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[11,86],"tags":[185,121],"class_list":["post-938","post","type-post","status-publish","format-standard","hentry","category-frontend-tech","category-reviews","tag-escript","tag-siebel"],"_links":{"self":[{"href":"https:\/\/bateru.com\/news\/wp-json\/wp\/v2\/posts\/938","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/bateru.com\/news\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/bateru.com\/news\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/bateru.com\/news\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/bateru.com\/news\/wp-json\/wp\/v2\/comments?post=938"}],"version-history":[{"count":6,"href":"https:\/\/bateru.com\/news\/wp-json\/wp\/v2\/posts\/938\/revisions"}],"predecessor-version":[{"id":948,"href":"https:\/\/bateru.com\/news\/wp-json\/wp\/v2\/posts\/938\/revisions\/948"}],"wp:attachment":[{"href":"https:\/\/bateru.com\/news\/wp-json\/wp\/v2\/media?parent=938"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/bateru.com\/news\/wp-json\/wp\/v2\/categories?post=938"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/bateru.com\/news\/wp-json\/wp\/v2\/tags?post=938"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}