Difference between revisions of "Attributes"

Latest revision as of 08:59, 3 August 2016

Attributes are used to store extended information per property. Attributes are objects managing additional fields for properties. As every UBIK^® object they are configurable according the set of their properties.

It is also possible to derive from the standard attributes in customizing and add additional attributes.

Configuration

MetaAttribute property

Attributes must be activated by defining the MetaAttribute property for a MetaProperty.

The new MetaAttribute Property does replace the NEEDS_VALIDATION property (Version 2.5)!

UBIK^® supports the following types of attributes

Content Attributes
Proxy Attributes

Standard properties of Attributes

Property	Purpose
ValidationTimestamp	Time stamp the property value was validated
ValidationUser	Login validating the property value
Owner	UBIK^® content object the attribute is associated to (the owner of the according property)
MetaProperty	MetaProperty of the related property

Properties for Proxy Attributes

Property	Purpose
InterfaceTimestamp	Time stamp the property value was ex- / imported

Accessing the data

Attribute data must be accessed via their properties. Therefore, properties provide methods to read and write attribute values:

/// <summary>
/// Tries the get attribute value.
/// </summary>
/// <typeparam name="T">attribute value type</typeparam>
/// <param name="attributeName">Name of the attribute.</param>
/// <param name="value">The value.</param>
/// <returns>true as successfull</returns>
public virtual bool TryGetAttributeValue<T>(string attributeName, out T value)

/// <summary>
/// Tries the get attribute value.
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="attributeID">The attribute identifier.</param>
/// <param name="value">The value.</param>
/// <returns>true as successfull</returns>
public virtual bool TryGetAttributeValue<T>(SystemStrings attributeID, out T value)

/// <summary>
/// Tries the set attribute value.
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="attributeName">Name of the attribute.</param>
/// <param name="value">The value.</param>
/// <returns>true as successfull</returns>
public virtual bool TrySetAttributeValue<T>(string attributeName, T value)

/// <summary>
/// Tries the set attribute value.
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="attributeID">The attribute identifier.</param>
/// <param name="value">The value.</param>
/// <returns>true as successfull</returns>
public virtual bool TrySetAttributeValue<T>(SystemStrings attributeID, T value)

@@ Line 1: / Line 1: @@
-=== Prerequisite ===
+Attributes are used to store extended information per property. Attributes are objects managing additional fields for properties. As every {{UBIK}} object they are configurable according the set of their properties. {{Version/ServerSince|2.5.0}}
-Attributes are supported since UBIK Version 2.5.
-=== Introduction ===
+It is also possible to derive from the standard attributes in customizing and add additional attributes.
-UBIK Attributes are used to store additional information per property.
-Attributes are objects managing information fields for properties. As every UBIK Object they are configurable according the set of properties they are carrying.
-=== Configuration ===
+== Configuration ==
-UBIK Attributes must be activated by defining the Meta Attribute property for a MetaProperty.
+[[File:UI_MetaAttribute.PNG|border|thumb|MetaAttribute property]]
+Attributes must be activated by defining the '''MetaAttribute''' property for a MetaProperty.
-[[File:UI_MetaAttribute.PNG|border]]
+{{Attention|The new MetaAttribute Property does replace the NEEDS_VALIDATION property (Version 2.5)!}}
-{{Attention|The new Meta Attribute Property does replace the NEDDS_VALIDATION property (Version 2.5)!}}
+{{UBIK}} supports the following types of attributes
-UBIK supports the following types of attributes
 * Content Attributes
 * Proxy Attributes
+=== Standard properties of Attributes ===
-==== Standard properties of Attributes ====
 {| class="wikitable"
 |-
 ! Property !! Purpose
 |-
-| ValidationTimestamp || Time stamp when the property value was validated
+| ''ValidationTimestamp'' || Time stamp the property value was validated
 |-
-| ValidationUser || Login who validated the property value
+| ''ValidationUser'' || Login validating the property value
 |-
-| Owner || Ubik Object the attribute belongs to (the owner of the related Property)
+| ''Owner'' || {{UBIK}} content object the attribute is associated to (the owner of the according property)
 |-
-| MetaProperty|| MetaProperty of the related Property
+| ''MetaProperty'' || MetaProperty of the related property
 |-
 |}
+=== Properties for Proxy Attributes ===
-==== Properties for Proxy Attributes ====
 {| class="wikitable"
 |-
 ! Property !! Purpose
 |-
-| InterfaceTimestamp || Time stamp when the property value was ex- / imported
+| ''InterfaceTimestamp'' || Time stamp the property value was ex- / imported
 |-
 |}
+== Accessing the data ==
+Attribute data must be accessed via their properties. Therefore, properties provide methods to read and write attribute values:
+<syntaxhighlight lang="csharp">
-It is possible to derive from the standard attributes in customizing and add additional attributes.
-==== Accessing the data ====
-Attribute data must be accessed via their properties. Therefor properties provide methods to read and write attribute values:
-<source lang="csharp">
          /// <summary>
          /// Tries the get attribute value.
@@ Line 91: / Line 77: @@
          public virtual bool TrySetAttributeValue<T>(SystemStrings attributeID, T value)
-</source>
+</syntaxhighlight>
 {{Category/Version|2.5.0}}
+[[Category:2.5.0|Attributes]]
+[[Category:UBIK Object|Attributes]]