Added in [API level 37](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels) Summary: [Methods](https://developer.android.com/reference/android/os/storage/operations/sources/OperationSource#pubmethods) \| [Inherited Methods](https://developer.android.com/reference/android/os/storage/operations/sources/OperationSource#inhmethods)

# OperationSource

*** ** * ** ***


`
public


abstract
class
OperationSource
`


`

extends https://developer.android.com/reference/java/lang/Object


`

`


`

|---|---|
| [java.lang.Object](https://developer.android.com/reference/java/lang/Object) ||
| ↳ | android.os.storage.operations.sources.OperationSource |

|---|
| Known direct subclasses [AppDataFileSource](https://developer.android.com/reference/android/os/storage/operations/sources/AppDataFileSource) |---|---| | [AppDataFileSource](https://developer.android.com/reference/android/os/storage/operations/sources/AppDataFileSource) | A source representing a file within the calling application's private app data directory. | |

<br />

*** ** * ** ***

Abstract base class for the source of a file operation.

## Summary

| ### Public methods ||
|---|---|
| ` abstract https://developer.android.com/reference/java/lang/String` | ` https://developer.android.com/reference/android/os/storage/operations/sources/OperationSource#toString()() ` Returns a human-readable representation of this source. |

| ### Inherited methods |
|---|---|
| From class ` https://developer.android.com/reference/java/lang/Object ` |---|---| | ` https://developer.android.com/reference/java/lang/Object` | ` https://developer.android.com/reference/java/lang/Object#clone()() ` Creates and returns a copy of this object. | | ` boolean` | ` https://developer.android.com/reference/java/lang/Object#equals(java.lang.Object)(https://developer.android.com/reference/java/lang/Object obj) ` Indicates whether some other object is "equal to" this one. | | ` void` | ` https://developer.android.com/reference/java/lang/Object#finalize()() ` Called by the garbage collector on an object when garbage collection determines that there are no more references to the object. | | ` final https://developer.android.com/reference/java/lang/Class<?>` | ` https://developer.android.com/reference/java/lang/Object#getClass()() ` Returns the runtime class of this `Object`. | | ` int` | ` https://developer.android.com/reference/java/lang/Object#hashCode()() ` Returns a hash code value for the object. | | ` final void` | ` https://developer.android.com/reference/java/lang/Object#notify()() ` Wakes up a single thread that is waiting on this object's monitor. | | ` final void` | ` https://developer.android.com/reference/java/lang/Object#notifyAll()() ` Wakes up all threads that are waiting on this object's monitor. | | ` https://developer.android.com/reference/java/lang/String` | ` https://developer.android.com/reference/java/lang/Object#toString()() ` Returns a string representation of the object. | | ` final void` | ` https://developer.android.com/reference/java/lang/Object#wait(long,%20int)(long timeoutMillis, int nanos) ` Causes the current thread to wait until it is awakened, typically by being *notified* or *interrupted*, or until a certain amount of real time has elapsed. | | ` final void` | ` https://developer.android.com/reference/java/lang/Object#wait(long)(long timeoutMillis) ` Causes the current thread to wait until it is awakened, typically by being *notified* or *interrupted*, or until a certain amount of real time has elapsed. | | ` final void` | ` https://developer.android.com/reference/java/lang/Object#wait()() ` Causes the current thread to wait until it is awakened, typically by being *notified* or *interrupted*. | ||

## Public methods

### toString

Added in [API level 37](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels)

```
public abstract String toString ()
```

Returns a human-readable representation of this source.

Concrete implementations should return a string that describes the source in a way that is
useful for debugging and logging (e.g., including key paths or identifiers).

**Note:** This string is intended for diagnostic purposes only and should not be parsed
or relied upon as a stable identifier for the files or the source configuration.

<br />

| Returns ||
|---|---|
| `https://developer.android.com/reference/java/lang/String` | A debugging string representation of the source. This value cannot be `null`. <br /> |