1 /*
2  * Copyright 2023 The Android Open Source Project
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  *      http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 package androidx.wear.protolayout.expression
17 
18 import androidx.wear.protolayout.expression.DynamicBuilders.DynamicType
19 import java.util.Objects
20 
21 /**
22  * Represent a key that references a dynamic value source, such as state pushed by app/tile or
23  * real-time data from the platform.
24  *
25  * @param T The data type of the dynamic values that this key is bound to.
26  */
27 public abstract class DynamicDataKey<T : DynamicType>
28 /**
29  * Create a [DynamicDataKey] with the specified key in the given namespace.
30  *
31  * @property namespace The namespace of the key for the dynamic data source.
32  * @property key The key that references the dynamic data source.
33  */
34 internal constructor(public val namespace: String, public val key: String) {
35 
equalsnull36     override fun equals(other: Any?): Boolean {
37         if (other === this) {
38             return true
39         }
40 
41         if (other !is DynamicDataKey<*>) {
42             return false
43         }
44 
45         return key == other.key && namespace == other.namespace
46     }
47 
hashCodenull48     override fun hashCode(): Int = Objects.hash(key, namespace)
49 
50     override fun toString(): String = "DynamicDataKey{namespace=$namespace, key=$key}"
51 }
52