# Dependency

Artifact: [androidx.constraintlayout:constraintlayout-core](https://developer.android.com/jetpack/androidx/releases/constraintlayout) [View Source](https://cs.android.com/search?q=file:androidx/constraintlayout/core/widgets/analyzer/Dependency.java+class:androidx.constraintlayout.core.widgets.analyzer.Dependency) Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2)

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```
interface Dependency
```

<br />

Known direct subclasses [DependencyNode](https://developer.android.com/reference/kotlin/androidx/constraintlayout/core/widgets/analyzer/DependencyNode), [WidgetRun](https://developer.android.com/reference/kotlin/androidx/constraintlayout/core/widgets/analyzer/WidgetRun)

|---|---|
| `https://developer.android.com/reference/kotlin/androidx/constraintlayout/core/widgets/analyzer/DependencyNode` |   |
| `https://developer.android.com/reference/kotlin/androidx/constraintlayout/core/widgets/analyzer/WidgetRun` |   |

Known indirect subclasses [ChainRun](https://developer.android.com/reference/kotlin/androidx/constraintlayout/core/widgets/analyzer/ChainRun), [HorizontalWidgetRun](https://developer.android.com/reference/kotlin/androidx/constraintlayout/core/widgets/analyzer/HorizontalWidgetRun), [VerticalWidgetRun](https://developer.android.com/reference/kotlin/androidx/constraintlayout/core/widgets/analyzer/VerticalWidgetRun)

|---|---|
| `https://developer.android.com/reference/kotlin/androidx/constraintlayout/core/widgets/analyzer/ChainRun` |   |
| `https://developer.android.com/reference/kotlin/androidx/constraintlayout/core/widgets/analyzer/HorizontalWidgetRun` |   |
| `https://developer.android.com/reference/kotlin/androidx/constraintlayout/core/widgets/analyzer/VerticalWidgetRun` |   |

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## Summary

| ### Public functions |
|---|---|
| `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-unit/index.html` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/core/widgets/analyzer/Dependency#update(androidx.constraintlayout.core.widgets.analyzer.Dependency)(node: https://developer.android.com/reference/kotlin/androidx/constraintlayout/core/widgets/analyzer/Dependency!)` |

## Public functions

### update

Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2)

```
fun update(node: Dependency!): Unit
```