@Incubating interface AttributeContainer : HasAttributes
An attribute container is a container of Attribute, which are strongly typed named entities. Such a container is responsible for storing and getting attributes in a type safe way. In particular, attributes are strongly typed, meaning that when we get a value from the container, the returned value type is inferred from the type of the attribute. In a way, an attribute container is similar to a java.util.Map where the entry is a "typed String" and the value is of the string type. However the set of methods available to the container is much more limited. It is not allowed to have two attributes with the same name but different types in the container.
Since
3.3
abstract fun <T : Any> attribute(key: Attribute<T>, value: T): AttributeContainer
Sets an attribute value. It is not allowed to use |
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abstract fun contains(key: Attribute<*>): Boolean
Tells if a specific attribute is found in this container. |
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abstract fun <T : Any> getAttribute(key: Attribute<T>): T
Returns the value of an attribute found in this container, or |
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abstract fun isEmpty(): Boolean
Returns true if this container is empty. |
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abstract fun keySet(): MutableSet<Attribute<*>>
Returns the set of attribute keys of this container. |
abstract fun getAttributes(): AttributeContainer
Returns the attributes |