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9.3.2 Writing Server-Side JavaScript Libraries Server-side JavaScript libraries are a special type of JavaScript program that can be imported and called in other JavaScript programs. You can use JavaScript libraries to perform simple, repetitive tasks, for example, to handle forms and form date, to manipulate date and time strings, to parse URLs, and so on. JavaScript libraries are internally developed extensions for SAP HANA. However, you can write your own libraries, too. JavaScript libraries exist in the context of a package, which is referenced when you import the library. To write a JavaScript library to use in your server-side JavaScript application, perform the following steps: 1. Create the file that contains the JavaScript library you want to add to the package and make available for import. In SAP HANA XS, server-side JavaScript libraries have the file extension .xsjslib, for example greetLib.xsjslib. The following example creates a simple library that displays the word “Hello” along with a supplied name and adds an exclamation point (!) as a suffix. var greetingPrefix = "Hello, "; var greetingSuffix = "!"; function greet (name) { return greetingPrefix + name + greetingSuffix; } 2. Save the new JavaScript library. It is important to remember where the JavaScript library is located; you have to reference the package path when you import the library. 3. Activate your new library in the repository so that it is available for import by other JavaScript applications. 9.3.3 Importing Server-Side JavaScript Libraries Server-side JavaScript libraries are a special type of JavaScript program that can be imported and called in other JavaScript programs. You can use JavaScript libraries to perform simple, repetitive tasks, for example: handle forms and form date, manipulate date and time strings, parse URLs, and so on. JavaScript libraries are internally developed extensions for SAP HANA. The libraries exist in the context of a package, which is referenced when you import the library. The following example of a JavaScript library displays the word "Hello" along with a name and an exclamation mark as a suffix. var greetingPrefix = "Hello, "; var greetingSuffix = "!"; function greet (name) { return greetingPrefix + name + greetingSuffix; } Note: This procedure uses the illustrated example JavaScript library to explain what happens when you import a JavaScript library, for example, which objects are created, when, and where. If you have your own library to import, substitute the library names and paths shown in the steps below as required. To import a JavaScript library for use in your server-side JavaScript application, perform the following tasks 1. Import the JavaScript library into a JavaScript application. 220 Open the server-side JavaScript file into which you want to import the JavaScript library. P U B L I C © 2012 SAP AG. All rights reserved. SAP HANA Developer Guide Writing Server-Side JavaScript Applications
Use the $.import function, as follows: $.import("","greetLib"); var greeting = $.path.to.your.library.filename.greet("World"); $.response.setBody(greeting); 2. Save and activate the changes to the JavaScript file. Although the operation is simple, bear in mind the following points: ○ Additional objects in the package hierarchy The import operation generates a hierarchy of objects below $ that resemble the library's location in the repository, for example, for the library path/to/your/library/greetLib.xsjslib, you would see the following additional object: $.path.to.your.library.greetLib ○ Additional properties for the newly generated library object: $.path.to.your.library.greetLib.greet() $.path.to.your.library.greetLib.greetingSuffix $.path.to.your.library.greetLib.greetingPrefix ○ Pre-import checks: ○ It is not possible to import the referenced library if the import operation would override any predefined runtime objects. ○ Do not import the referenced library if it is already present in the package. ○ Library context Imported libraries exist in the context defined by their repository location. 9.4 Server-Side JavaScript APIs SAP HANA Extended Application Services (SAP HANA XS) provides a set of server-side JavaScript application programming interfaces (API) that enable you to configure your applications to interact with SAP HANA. The SAP HANA XS API Reference lists all the functions that are available for use when programing interaction between your application and SAP HANA. For example, you can use the database API to invoke SQL statements from inside your application, or access details of the current HTTP request for SAP HANA data with the requestprocessing API.SAP HANA XS includes the following set of server-side JavaScript APIs: ● Request-Processing API Enables access to the context of the current HTTP request, for example, for read requests and write responses. You can use the functions provided by this API to manipulate the content of the request and the response. ● Database API Enables access to the SAP HANA by means of SQL statements. For example, you can open a connection to commit or rollback changes in SAP HANA, to prepare stored procedures (or SQL statements) for execution or to return details of a result set or a result set's metadata. SAP HANA Developer Guide Writing Server-Side JavaScript Applications P U B L I C © 2012 SAP AG. All rights reserved. 221
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SAP HANA Appliance Software SPS 05
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4.3.1 SAP HANA Repository Packages
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6.5.12 Searching Tables, Models and
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12.2 Authentication Overview. .....
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2 SAP HANA SAP HANA is an in-memory
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With a scanning speed of several gi
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SAP HANA greatly extends the tradit
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2.4 Refactoring SAP HANA Based Appl
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In either case, as a developer you
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For this scenario, you may need to
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Object Description File Extension M
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Committing the file saves it in the
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● Security: Contains the roles an
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The view essentially is a list of r
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Action Description ● Creates a ne
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● Debug Session: The debug sessio
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○ MODELING ○ CONTENT_ADMIN 3.5.
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4.1 Setting up Delivery Units A del
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Related Links ○ In the text boxes
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4.2.2 Creating a Repository Workspa
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3. Open the Project Explorer view.
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1. Create a package Packages are ne
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● Non-Structural Package contains
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In the New Package dialog, enter in
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Maintaining Translation Details [pa
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Note: Exposed package content can i
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Application-Access File Keyword Opt
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Note: You can disable authenticatio
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| |---2011... |---subpackage1 | |--
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You use the mime_mapping keyword to
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1. If you have not already done so,
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2. Select Open Development. The def
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3. Select Next. 4. Enter a user nam
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In the SAP HANA Repositories view,
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Since you only have one workspace,
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6. Add a file called .xsaccess (no
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SAP HANA Developer Guide Setting Up
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5.1 Schema Relational databases con
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creation, but can have any number o
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If you want to define a transportab
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ool public(default=true); optional
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5.9.1 Table-Import Model The table-
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○ The key area of the input value
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{name = "Forename"; sqlType = VARCH
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var pstatement1 = conn.prepareState
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Note: The following example is for
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You can perform the following tasks
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Requirement Preference Substeps Not
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a) Log on to the Central Management
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4. In the Target System section, se
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Remember: Schema mapping only appli
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) Select the required granularity c
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● Hierarchies Note: In the Semant
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Restriction: It is not allowed to a
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Related Links ● When you open an
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○ Select the Data Foundation node
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a) In the Output panel of the Logic
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Related Links Note: If an active ve
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Note: Definer's right: If you want
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Optional Step: Creating Calculated
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4. Choose OK. Activate Note: 1. If
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a. To map the source to the target
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a. Enter a name and description. b.
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example, to calculate Discount for
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○ Name Path - the unique node ID
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specifying target currency and dese
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● In the Activate dialog, you can
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Note: You can also create a join be
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● You can choose to create parame
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● A decision table is based on in
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Objects in edit mode in other works
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shown. You can apply a filter for p
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Type Description Calculation View G
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3. From the context menu, choose Da
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Function Syntax Purpose hextoraw st
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Function Syntax Purpose daysbetween
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6.5.13 Setting Keyboard Shortcuts Y
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case, the name of calculation view
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The generated information models an
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● CALL: Calls a procedure. For ex
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7.2 Debugging SQLScript The SAP HAN
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Invoker's right: If you want the sy
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The main aim of OData is to define
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The OData specification requires an
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2. Perform the search on two column
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Rule 2 - House Numbers or House Num
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col1 NVARCHAR(20) FUZZY SEARCH MODE
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2. Country codes are standardized t
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Postcode 1 Postcode 2 Score Remarks
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WHERE CONTAINS(postcode, '1234', FU
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PHRASE is similar to AND but restri
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Tokens=input')) ORDER BY score DESC
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)) ORDER BY score DESC, id; SCORE I
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Option textSearch The textSearch op
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Fuzzy Search with Stopwords Usage S
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Stopword Example CREATE COLUMN TABL
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Stopword ltd The stopwords will not
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Column Name Type Primary Key Descri
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Only one of these errors is allowed
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2000-01-11 -> 0.96 2000-01-12 -> 0.
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This deletes the node and all its c
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Hofmann -- specifies the input valu
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SCORE ID COMPANYNAME 0.88 6 xabc 0.
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advanced customizing and layout of
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Example: http://hana1.acme.corp:800
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Along with the full text index, you
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11.3.7 Defining the Page Layout Now
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switchbox Parameter Name Default Va
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11.3.9 Defining the Layout of Resul
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12.2 Authentication Overview Authen
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Secondly, roles created as design-t
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Caution: Theoretically, a user with
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Example: role :: { catalog schema "
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12.4 Privileges SAP HANA offers var
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Authorization to update or delete n
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● Activity ● Validity ● Attri
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The SAP HANA modeler automatically
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Runtime Authorization Check of Anal
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Implications of Creating Analytic P
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Now when a database user requests a
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If you create restrictions on colum
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12.4.6 Granting Privileges to Users
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The location of the application-des
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For example, you need to plan, mana
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13.4 Importing Delivery Units Impor
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4. Download translated text to the
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14 Using Database Client Interfaces
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1. In a command line, run the follo
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The port should be 315, for example
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The first column shows the field na
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3. In the Connection tab of the Dat
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SAP HANA supports the following Mic
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Function Description Avg Returns th
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Function Description MembersAscenda
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○ MEMBERS_AND_ASCENDANTS ○ MEMB
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15 SAP HANA Developer References Th
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