ExistingWorkPolicy

Added in 1.0.0

Kotlin |Java

public enum ExistingWorkPolicy extends Enum

java.lang.Object
↳	kotlin.Enum
	↳	androidx.work.ExistingWorkPolicy

An enumeration of the conflict resolution policies available to unique OneTimeWorkRequests in case of a collision.

Summary

Enum Values
`APPEND`	If there is existing pending (uncompleted) work with the same unique name, append the newly-specified work as a child of all the leaves of that work sequence.
`APPEND_OR_REPLACE`	If there is existing pending (uncompleted) work with the same unique name, append the newly-specified work as the child of all the leaves of that work sequence.
`KEEP`	If there is existing pending (uncompleted) work with the same unique name, do nothing.
`REPLACE`	If there is existing pending (uncompleted) work with the same unique name, cancel and delete it.

Public methods
`final @NonNull EnumEntries<@NonNull ExistingWorkPolicy>`	`getEntries()` An enumeration of the conflict resolution policies available to unique `OneTimeWorkRequest`s in case of a collision.
`final @NonNull ExistingWorkPolicy`	`valueOf(@NonNull String value)` Returns the enum constant of this type with the specified name.
`final @NonNull ExistingWorkPolicy[]`	`values()` Returns an array containing the constants of this enum type, in the order they're declared.

Enum Values

APPEND

ExistingWorkPolicy ExistingWorkPolicy.APPEND

If there is existing pending (uncompleted) work with the same unique name, append the newly-specified work as a child of all the leaves of that work sequence. Otherwise, insert the newly-specified work as the start of a new sequence.

Note: When using APPEND with failed or cancelled prerequisites, newly enqueued work will also be marked as failed or cancelled respectively. Use ExistingWorkPolicy.APPEND_OR_REPLACE to create a new chain of work.

APPEND_OR_REPLACE

ExistingWorkPolicy ExistingWorkPolicy.APPEND_OR_REPLACE

If there is existing pending (uncompleted) work with the same unique name, append the newly-specified work as the child of all the leaves of that work sequence. Otherwise, insert the newly-specified work as the start of a new sequence.

Note: If there are failed or cancelled prerequisites, these prerequisites are dropped and the newly-specified work is the start of a new sequence.

KEEP

ExistingWorkPolicy ExistingWorkPolicy.KEEP

If there is existing pending (uncompleted) work with the same unique name, do nothing. Otherwise, insert the newly-specified work.

REPLACE

ExistingWorkPolicy ExistingWorkPolicy.REPLACE

If there is existing pending (uncompleted) work with the same unique name, cancel and delete it. Then, insert the newly-specified work.

Public methods

getEntries

public final @NonNull EnumEntries<@NonNull ExistingWorkPolicy> getEntries()

An enumeration of the conflict resolution policies available to unique OneTimeWorkRequests in case of a collision.

valueOf

Added in 1.0.0

public final @NonNull ExistingWorkPolicy valueOf(@NonNull String value)

Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)

Throws
`kotlin.IllegalArgumentException`	if this enum type has no constant with the specified name

values

Added in 1.0.0

public final @NonNull ExistingWorkPolicy[] values()

Returns an array containing the constants of this enum type, in the order they're declared.

This method may be used to iterate over the constants.