core/de.jvstvshd.vyreka.core.attribute

Package-level declarations

Types

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interface AttributeHolder
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interface Key

A key is a unique identifier for an attribute. It is used to store, retrieve and identify attributes. Keys are immutable and should be unique.

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data class LongKey(val key: Long) : Key

A key that is identified by a long.

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abstract class SimpleAttributeHolder(val attributeMap: MutableMap<Key, Any>) : AttributeHolder
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data class StringKey(val key: String) : Key

A key that is identified by a string.

Functions

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inline fun <T> AttributeHolder.getAttributeType(key: Key): T

Retrieves an attribute with the given key and casts it to the given type. If the attribute is not of the given type, a ClassCastException is thrown. If no attribute with the given key exists, an exception is thrown.

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inline fun <T> AttributeHolder.getAttributeTypeOrDefault(key: Key, default: T): T

Retrieves an attribute with the given key and casts it to the given type. If the attribute is not of the given type, a ClassCastException is thrown. If no attribute with the given key exists, the default value is returned.

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inline fun <T> AttributeHolder.getAttributeTypeOrNull(key: Key): T?

Retrieves an attribute with the given key and casts it to the given type. If the attribute is not of the given type, a ClassCastException is thrown. If no attribute with the given key exists, null is returned.