Datatypes

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Revision as of 18:31, 26 January 2010 (edit) Alex (Talk | contribs) (→Dates and Time) ← Older edit		Current revision as of 19:27, 13 February 2010 (edit) (undo) Alex (Talk | contribs) (→Intro)
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-	[[Category: SA Misc ]]	+	[[Category:Data Model]]
	== Intro ==		== Intro ==
	Datatypes are defined base on requirements, properties of the class of objects.		Datatypes are defined base on requirements, properties of the class of objects.
		+
		+	This encompasses "constraints". Normally system validates these.
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		+	In ZK there are separate widgets for some datatypes: "intbox", "decimalbox", etc.
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		+	'''!''' 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.
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		+	When defining widgets there is a required attribute to be defined: [[datatype/format]].
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	Common CT2 datatypes - see:		Common CT2 datatypes - see:

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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