# CursorMapper

# CursorMapper

Artifact:[androidx.leanback:leanback](https://developer.android.com/jetpack/androidx/releases/leanback)  
[View Source](https://cs.android.com/search?q=file:androidx/leanback/database/CursorMapper.java+class:androidx.leanback.database.CursorMapper)  
Added in[1.1.0](https://developer.android.com/jetpack/androidx/releases/leanback#1.1.0)

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Kotlin\|[Java](https://developer.android.com/reference/androidx/leanback/database/CursorMapper "View this page in Java")

<br />

```
abstract class CursorMapper
```

<br />

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Abstract class used to convert the current[Cursor](https://developer.android.com/reference/android/database/Cursor.html)row to a single object.

## Summary

|                                                  ### Public constructors                                                  |
|---------------------------------------------------------------------------------------------------------------------------|
| [CursorMapper](https://developer.android.com/reference/kotlin/androidx/leanback/database/CursorMapper#CursorMapper())`()` |

|                              ### Public functions                              |
|--------------------------------------------------------------------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| [Any](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-any/index.html)`!` | [convert](https://developer.android.com/reference/kotlin/androidx/leanback/database/CursorMapper#convert(android.database.Cursor))`(cursor: `[Cursor](https://developer.android.com/reference/android/database/Cursor.html)`!)` Convert a[Cursor](https://developer.android.com/reference/android/database/Cursor.html)at its current position to an Object. |

|                                  ### Protected functions                                  |
|-------------------------------------------------------------------------------------------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| `abstract `[Any](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-any/index.html)`!` | [bind](https://developer.android.com/reference/kotlin/androidx/leanback/database/CursorMapper#bind(android.database.Cursor))`(cursor: `[Cursor](https://developer.android.com/reference/android/database/Cursor.html)`!)` A subclass should implement this method to create a single object using binding information.                                           |
| `abstract `[Unit](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-unit/index.html)  | [bindColumns](https://developer.android.com/reference/kotlin/androidx/leanback/database/CursorMapper#bindColumns(android.database.Cursor))`(cursor: `[Cursor](https://developer.android.com/reference/android/database/Cursor.html)`!)` Called once when the associated[Cursor](https://developer.android.com/reference/android/database/Cursor.html)is changed. |

## Public constructors

### CursorMapper

Added in 1.1.0  

```
CursorMapper()
```  

## Public functions

### convert

Added in[1.1.0](https://developer.android.com/jetpack/androidx/releases/leanback#1.1.0)  

```
fun convert(cursor: Cursor!): Any!
```

Convert a[Cursor](https://developer.android.com/reference/android/database/Cursor.html)at its current position to an Object.  

## Protected functions

### bind

Added in[1.1.0](https://developer.android.com/jetpack/androidx/releases/leanback#1.1.0)  

```
protected abstract fun bind(cursor: Cursor!): Any!
```

A subclass should implement this method to create a single object using binding information. This method is not intended to be called outside of CursorMapper.  

### bindColumns

Added in[1.1.0](https://developer.android.com/jetpack/androidx/releases/leanback#1.1.0)  

```
protected abstract fun bindColumns(cursor: Cursor!): Unit
```

Called once when the associated[Cursor](https://developer.android.com/reference/android/database/Cursor.html)is changed. A subclass should bind column indexes to column names in this method. This method is not intended to be called outside of CursorMapper.