SmartBox SmartObjects

SmartObjects allow you to create data objects by specifying properties and associations using the K2 SmartBox service. You automatically get the five standard methods available on all SmartObjects you create this way.

The SmartBox Service service type is used for SmartBox-based SmartObjects. SmartBox is a K2-managed SQL schema in the K2 database and is used for storing SmartObject data when there is no existing line-of-business system to store the data. SmartObjects you create using the K2 Designer typically use the SmartBox provider unless you change the SmartObject to use data from another service type. See SmartBox Service for more information.

The Properties tab displays all the properties and their configuration settings such as Type and Key. The ID autonumber property is added by default to all new SmartObjects. You can edit this property and change it, for example to EmpID, or delete it. A SmartObject requires at least one Key property.

To add a new property, click Add. The Add Properties page opens. You can capture the details of the property here and select a property type.

Action Description
Add Creates a line where you can add the property name
Edit Edits the property information
Remove Removes the property
Remove All Removes all properties
Move Up Changes the position of the property selected with the property above it
Move Down Changes the position of the property selected with the property below it
Name The name of the property
Description The description of the property
Type The type of the property
Key The Key property identifies the property as unique, which ensures that the value of the property is always unique and no two records can contain the same data for this property. A SmartObject requires at least one Key property
Required Creates a required property when new records are added to the SmartObject, for example from a view or a form
Unique SQL specification that sets a requirement for this field to be unique

The following property types are available when you create a SmartObject property:

Type What it is
AutoGUID Similar to Autonumber, AutoGUID is an identity type where a GUID is auto-generated when a record is created
Autonumber When a new record is created in the SmartObject, an index number is automatically generated
Date Allows you to set a property to display data in a date format
Date Time Allows you to set a property to display data in a date and time format
Decimal Allows you to enter decimal numbers in the SmartObject property
File Stores a file of supported types
GUID Global Unique Identifier
Hyperlink Stores the property data as a hyperlink
Image Stores an image of supported types
Memo Large String
Multivalue Use multivalue data types to store multiple values in one SmartObject property. When you use service objects that have multivalue properties, such as the Active Directory service object, the values are translated to the XML schema provided below . If the format cannot be translated, the data type is not stored. An example of the expected schema is:
<collection>
<object>
<fields>
<field>
<value>2</value>
</field>
<field>
<value>4</value>
</field>
<field>
<value>6</value>
</field>
</fields>
</object>
</collection>
The multivalue data type is typically used with a Check Box List control in views. This reads and updates the values from the multivalue property. The values shown in the Check Box List can be either static values or SmartObject list results.
Number Allows you to input numerical values
Text Stores ANSI standard text characters
Time Allows you to set a property to display the data in a time format.
Yes/No Boolean type property

Use the information below to determine where and when to use the following data types:

  • DateTime - Allows you to specify a Coordinated Universal Time (UTC) that shows the time in the local timezone.
  • DateTime (with timezone) - Allows you to use a UTC time that does not vary based on the local timezone.
  • Date - You can use this for a timezone-invariant date (no time).
  • Time - You can use this for a timezone-invariant time (no date).

You can configure settings that further define the SmartObject properties. The types of settings depend on the property type you edit. This means that not all settings are available on all property types. Follow the steps below to configure the property settings.

Some of the additional property settings such as Maximum Size, Time Precision, and Constant Size only apply to SmartBox SmartObjects. Other line of business systems might not support the property settings as described in the table below. When a SmartObject is a SmartBox object, several property settings may only be changed when there is no data in the SmartBox SmartObject. If there is data you may be blocked when trying to save the changes. If that is the case, you must export data from the SmartObject, delete that data, update the SmartObject, and then import the data again.

  1. From the K2 Designer, select the SmartObject and click Edit.
  2. Select the property and click Edit.
  3. The Edit Property page shows.

    4. The following table describes the available property settings:

    SettingApplies toDescriptionHow to Use
    NameAllThe name of the SmartObject property.Type to add or edit the value
    DescriptionAllThe description of the SmartObject property.Type to add or edit the value
    TypeAllThe data type of the property.To change the format, select a value from the drop down.
    KeyAllUse this to set the property as a unique identifier for the SmartObject.Check the check box to select property as the unique identifier.
    SmartBoxAdvanced SmartObjectUse this to create the property in a SmartBox table.Check the check box to create the property in a SmartBox table.
    RequiredAllUse this to specify if the property requires a value before the record can be saved.Check the check box if the property requires a value.
    UniqueAllUse this to specify that the property can only contain unique values.Check the check box to require only unique values for this property.
    Constant SizeText

    Use this to specify if a text field has a constant size. Check this check box if the information entered into this field has a fixed number of characters, such as a social security number.

    		Check the check box.
    Maximum SizeText

    Use this to specify the maximum length of text you enter into the property. For example, if you type 100 into this field, the most characters stored in the database are 100.

    • 1 - Minimum value
    • 100 - Default value
    • 200 - Maximum value

    You can increase the maximum size value even if your SmartObject contains data. An error occurs when you decrease the maximum size value when there is data in the SmartObject.

    		Type a value between 1 and 200 into the field.
    Time PrecisionTime

    Use this to specify the time format for the property. You can specify the number of decimal places added after the seconds (hh:mm:ss.sss).

    • 0 - Minimum value
    • 0 - Default value
    • 7 - Maximum value

    Examples

    If you select the time precision as 0 and your input data is 08:27:34.1866667 the value shows as 08:27:34.

    If you select the time precision as 1 and your input data is 08:27:34.1866667 the value shows as 08:27:34.1.

    If you select the time precision as 7 and your input data is 08:27:34.7600000 the value shows as 08:27:34.7600000.

    If you select the time precision as 7 and your input data is 02:22:22.12345678 (8 decimal places) the value show as 02:22:22.1234568. Notice how only 7 decimal place show and rounding was applied.

    You cannot type a value greater than 7. It is possible to use the broker to set a value greater than 7, but this results in a SQL error. You cannot change the value if there is already data in the SmartObject.

    		Type a value between 0 and 7 into the field.
    Decimal placesDecimal

    Use this to specify the decimal format for the property. The value specifies the number of decimal places to be added.

    • 0 - Minimum value
    • 2 - Default value
    • 12 - Maximum value

    An error occurs when you type a value greater than 12. You also receive an error when you decrease the decimal value if there is already data in the SmartObject and the value is smaller than the value being set. Example: The value in the database is .3333333 (decimal places of 7) and you decrease the value to 2.

    You can, however, increase the number of decimal spaces as this does not represent potential data loss. For example, if the value in the database is .33 (decimal places of 2) and you increase the value to 5.

    		 
    Encrypt PropertyDecimal, Number, Text

    Use this to encrypt the SmartObject data when it is written to the database. This means, even if a nefarious user obtains copies of your database files (.mdf, .ndf, .ldf or backup files) they can not access or view any of the data unless they also have a copy of the encryption key or a security certificate.

    Example: You create a SmartBox HR application with a Social Security Number property and mark this property as encrypted. Should another business user connect to SQL directly, they will not see unencrypted SSNs.

    		Check the check box to encrypt the property.

  4. Click OK to save changes made to the properties.

When you work with Advanced SmartObjects, make sure to check the SmartBox check box to enable the additional settings.

Property types or better known as data types are automatically validated upon executing the CREATE or SAVE method on a SmartObject. For example, if you try to CREATE a new record for a SmartObject property called Mobile with a data type of type [Number], but with a value that is of type [Text], a server side message displays stating that validation has failed.

The Methods tab only displays when creating an Advanced SmartObject.

The Methods tab is not visible when creating a standard SmartObject as default methods are automatically created for this type of SmartObject. The methods created by default are:

  • Create - Creates records
  • Save - Saves records
  • Load - Uploads records
  • Delete - Deletes records
  • Get List - Lists records

These methods are available in the K2 Object Browser under Environment > SmartObject Server for use in K2 workflows. If you want to choose multiple SmartObject services, or to add/delete SmartObject methods, you must create an Advanced SmartObject or edit the SmartObject and change the type to Advanced SmartObject.