Datatypes

From UG

Revision as of 01:16, 21 January 2010 (edit) Alex (Talk | contribs) (Created page with 'Category: UI == Intro == Common CT2 datatypes: == Numbers == === Integer === Examples: * 23 * 1000 * 0 * -7896 === Positive Integer === * 23 * 1000 * 0 === Decimal =…') ← Older edit		Current revision as of 19:27, 13 February 2010 (edit) (undo) Alex (Talk | contribs) (→Intro)
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-	[[Category: UI]]	+	[[Category:Data Model]]
	== Intro ==		== Intro ==
-	Common CT2 datatypes:	+	Datatypes are defined base on requirements, properties of the class of objects.
		+
		+	This encompasses "constraints". Normally system validates these.
		+
		+	In ZK there are separate widgets for some datatypes: "intbox", "decimalbox", etc.
		+
		+	'''!''' This could/should be defined often "before" the UI - this is a property of class of corresponding object. So in this case link should be provided instead of repeating definition.
		+
		+	When defining widgets there is a required attribute to be defined: [[datatype/format]].
		+
		+
		+	Common CT2 datatypes - see:
		+
		+	* [[#Numbers]]
		+	* [[#Strings]]
	== Numbers ==		== Numbers ==
-	=== Integer ===	+	=== integer ===
	Examples:		Examples:
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	* -7896		* -7896
-	=== Positive Integer ===	+	=== positive integer ===
	* 23		* 23
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	* 0		* 0
-	=== Decimal ===	+	=== decimal ===
	Also called (floating-point numbers)		Also called (floating-point numbers)
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	* 1.9083496		* 1.9083496
	* 100865.08E23		* 100865.08E23
		+
		+	See also [[precision]]
	== Strings ==		== Strings ==
		+
		+	=== alpha ===
		+
		+	Letters A to Z.
	=== alphanumeric ===		=== alphanumeric ===
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	* 897		* 897
-	=== Unicode ===	+	=== unicode ===
	Examples:		Examples:
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	* русский алфавит		* русский алфавит
-	=== ASCII ===	+	=== ascii ===
	Examples:		Examples:
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	== Other datatypes examples ==		== Other datatypes examples ==
		+
		+	Everything outside of common/standard is not a type really. It is a string of certain format/constraint.
		+
		+	Examples:
		+
		+	* Airline 3 Letter Numeric Code, possible value: 053
		+	* Master Airway bill, possible value: 222-7824-5587
		+
		+	== Dates and Time ==
		+
		+	=== CT2 date ===
		+
		+	This date must be in the following format:
		+
		+	<Day>-<Month(first 3 letters)>-<Year>
		+
		+	Example: 17-Jan-2010

---

Current revision as of 19:27, 13 February 2010

Contents 1 Intro 2 Numbers 2.1 integer 2.2 positive integer 2.3 decimal 3 Strings 3.1 alpha 3.2 alphanumeric 3.3 unicode 3.4 ascii 4 Other datatypes examples 5 Dates and Time 5.1 CT2 date

[edit] Intro

Datatypes are defined base on requirements, properties of the class of objects.

This encompasses "constraints". Normally system validates these.

In ZK there are separate widgets for some datatypes: "intbox", "decimalbox", etc.

! This could/should be defined often "before" the UI - this is a property of class of corresponding object. So in this case link should be provided instead of repeating definition.

When defining widgets there is a required attribute to be defined: datatype/format.

Common CT2 datatypes - see:

• #Numbers
• #Strings

[edit] Numbers

[edit] integer

Examples:

• 23
• 1000
• 0
• -7896

[edit] positive integer

• 23
• 1000
• 0

[edit] decimal

Also called (floating-point numbers)

Examples:

• 2.3
• 1.0
• 1.9083496
• 100865.08E23

See also precision

[edit] Strings

[edit] alpha

Letters A to Z.

[edit] alphanumeric

The alphanumeric character set consists of the numbers 0 to 9 and letters A to Z.

Examples:

• hgTF9087GggyYg
• book
• 897

[edit] unicode

Examples:

• อักษรไทย
• русский алфавит

[edit] ascii

Examples:

• jhg&$&^*&@dceUH!
• Hello!
• #234
• 12-34-98698690

http://en.wikipedia.org/wiki/ASCII

[edit] Other datatypes examples

Everything outside of common/standard is not a type really. It is a string of certain format/constraint.

Examples:

• Airline 3 Letter Numeric Code, possible value: 053
• Master Airway bill, possible value: 222-7824-5587

[edit] Dates and Time

[edit] CT2 date

This date must be in the following format:

<Day>-<Month(first 3 letters)>-<Year>

Example: 17-Jan-2010