com.azure.data.cosmos

Class ChangeFeedProcessorOptions

java.lang.Object

com.azure.data.cosmos.ChangeFeedProcessorOptions

public class ChangeFeedProcessorOptions
extends Object

Specifies the options associated with ChangeFeedProcessor.

Constructor Summary

Constructors

Constructor and Description
ChangeFeedProcessorOptions()

Method Summary

Modifier and Type	Method and Description
boolean	discardExistingLeases() Gets a value indicating whether on start of the host all existing leases should be deleted and the host should start from scratch.
ChangeFeedProcessorOptions	discardExistingLeases(boolean discardExistingLeases) Sets a value indicating whether on start of the host all existing leases should be deleted and the host should start from scratch.
Duration	feedPollDelay() Gets the delay in between polling a partition for new changes on the feed, after all current changes are drained.
ChangeFeedProcessorOptions	feedPollDelay(Duration feedPollDelay) Sets the delay in between polling a partition for new changes on the feed, after all current changes are drained.
Duration	leaseAcquireInterval() Gets the interval to kick off a task to compute if partitions are distributed evenly among known host instances.
ChangeFeedProcessorOptions	leaseAcquireInterval(Duration leaseAcquireInterval) Sets he interval to kick off a task to compute if partitions are distributed evenly among known host instances.
Duration	leaseExpirationInterval() Gets the interval for which the lease is taken on a lease representing a partition.
ChangeFeedProcessorOptions	leaseExpirationInterval(Duration leaseExpirationInterval) Sets the interval for which the lease is taken on a lease representing a partition.
String	leasePrefix() Gets a prefix to be used as part of the lease ID.
ChangeFeedProcessorOptions	leasePrefix(String leasePrefix) Sets a prefix to be used as part of the lease ID.
Duration	leaseRenewInterval() Gets the renew interval for all leases for partitions currently held by ChangeFeedProcessor instance.
ChangeFeedProcessorOptions	leaseRenewInterval(Duration leaseRenewInterval) Sets the renew interval for all leases for partitions currently held by ChangeFeedProcessor instance.
int	maxItemCount() Gets the maximum number of items to be returned in the enumeration operation in the Azure Cosmos DB service.
ChangeFeedProcessorOptions	maxItemCount(int maxItemCount) Sets the maximum number of items to be returned in the enumeration operation.
int	maxScaleCount() Gets the maximum number of partitions the host can serve.
ChangeFeedProcessorOptions	maxScaleCount(int maxScaleCount) Sets the maximum number of partitions the host can serve.
int	minScaleCount() Gets the minimum partition count for the host.
ChangeFeedProcessorOptions	minScaleCount(int minScaleCount) Sets the minimum partition count for the host.
String	startContinuation() Gets the start request continuation token to start looking for changes after.
ChangeFeedProcessorOptions	startContinuation(String startContinuation) Sets the start request continuation token to start looking for changes after.
boolean	startFromBeginning() Gets a value indicating whether change feed in the Azure Cosmos DB service should start from beginning (true) or from current (false).
ChangeFeedProcessorOptions	startFromBeginning(boolean startFromBeginning) Sets a value indicating whether change feed in the Azure Cosmos DB service should start from beginning.
OffsetDateTime	startTime() Gets the time (exclusive) to start looking for changes after.
ChangeFeedProcessorOptions	startTime(OffsetDateTime startTime) Sets the time (exclusive) to start looking for changes after (UTC time).

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

ChangeFeedProcessorOptions

public ChangeFeedProcessorOptions()

Method Detail

leaseRenewInterval

public Duration leaseRenewInterval()

Gets the renew interval for all leases for partitions currently held by ChangeFeedProcessor instance.

Returns:

the renew interval for all leases for partitions.

leaseRenewInterval

public ChangeFeedProcessorOptions leaseRenewInterval(Duration leaseRenewInterval)

Sets the renew interval for all leases for partitions currently held by ChangeFeedProcessor instance.

Parameters:

leaseRenewInterval - the renew interval for all leases for partitions currently held by ChangeFeedProcessor instance.

Returns:

the current ChangeFeedProcessorOptions instance.

leaseAcquireInterval

public Duration leaseAcquireInterval()

Gets the interval to kick off a task to compute if partitions are distributed evenly among known host instances.

Returns:

the interval to kick off a task to compute if partitions are distributed evenly among known host instances.

leaseAcquireInterval

public ChangeFeedProcessorOptions leaseAcquireInterval(Duration leaseAcquireInterval)

Sets he interval to kick off a task to compute if partitions are distributed evenly among known host instances.

Parameters:

leaseAcquireInterval - he interval to kick off a task to compute if partitions are distributed evenly among known host instances.

Returns:

the current ChangeFeedProcessorOptions instance.

leaseExpirationInterval

public Duration leaseExpirationInterval()

Gets the interval for which the lease is taken on a lease representing a partition.

If the lease is not renewed within this interval, it will cause it to expire and ownership of the partition will move to another ChangeFeedProcessor instance.

Returns:

the interval for which the lease is taken on a lease representing a partition.

leaseExpirationInterval

public ChangeFeedProcessorOptions leaseExpirationInterval(Duration leaseExpirationInterval)

Sets the interval for which the lease is taken on a lease representing a partition.

If the lease is not renewed within this interval, it will cause it to expire and ownership of the partition will move to another ChangeFeedProcessor instance.

Parameters:

leaseExpirationInterval - the interval for which the lease is taken on a lease representing a partition.

Returns:

the current ChangeFeedProcessorOptions instance.

feedPollDelay

public Duration feedPollDelay()

Gets the delay in between polling a partition for new changes on the feed, after all current changes are drained.

Returns:

the delay in between polling a partition for new changes on the feed.

feedPollDelay

public ChangeFeedProcessorOptions feedPollDelay(Duration feedPollDelay)

Sets the delay in between polling a partition for new changes on the feed, after all current changes are drained.

Parameters:

feedPollDelay - the delay in between polling a partition for new changes on the feed, after all current changes are drained.

Returns:

the current ChangeFeedProcessorOptions instance.

leasePrefix

public String leasePrefix()

Gets a prefix to be used as part of the lease ID.

This can be used to support multiple instances of ChangeFeedProcessor instances pointing at the same feed while using the same auxiliary collection.

Returns:

a prefix to be used as part of the lease ID.

leasePrefix

public ChangeFeedProcessorOptions leasePrefix(String leasePrefix)

Sets a prefix to be used as part of the lease ID.

Parameters:

leasePrefix - a prefix to be used as part of the lease ID.

Returns:

the current ChangeFeedProcessorOptions instance.

maxItemCount

public int maxItemCount()

Gets the maximum number of items to be returned in the enumeration operation in the Azure Cosmos DB service.

Returns:

the maximum number of items to be returned in the enumeration operation in the Azure Cosmos DB service.

maxItemCount

public ChangeFeedProcessorOptions maxItemCount(int maxItemCount)

Sets the maximum number of items to be returned in the enumeration operation.

Parameters:

maxItemCount - the maximum number of items to be returned in the enumeration operation.

Returns:

the current ChangeFeedProcessorOptions instance.

startContinuation

public String startContinuation()

Gets the start request continuation token to start looking for changes after.

This is only used when lease store is not initialized and is ignored if a lease for partition exists and has continuation token. If this is specified, both StartTime and StartFromBeginning are ignored.

Returns:

the start request continuation token to start looking for changes after.

startContinuation

public ChangeFeedProcessorOptions startContinuation(String startContinuation)

Sets the start request continuation token to start looking for changes after.

This is only used when lease store is not initialized and is ignored if a lease for partition exists and has continuation token. If this is specified, both StartTime and StartFromBeginning are ignored.

Parameters:

startContinuation - the start request continuation token to start looking for changes after.

Returns:

the current ChangeFeedProcessorOptions instance.

startTime

public OffsetDateTime startTime()

Gets the time (exclusive) to start looking for changes after.

This is only used when: (1) Lease store is not initialized and is ignored if a lease for partition exists and has continuation token. (2) StartContinuation is not specified. If this is specified, StartFromBeginning is ignored.

Returns:

the time (exclusive) to start looking for changes after.

startTime

public ChangeFeedProcessorOptions startTime(OffsetDateTime startTime)

Sets the time (exclusive) to start looking for changes after (UTC time).

This is only used when: (1) Lease store is not initialized and is ignored if a lease for partition exists and has continuation token. (2) StartContinuation is not specified. If this is specified, StartFromBeginning is ignored.

Parameters:

startTime - the time (exclusive) to start looking for changes after.

Returns:

the current ChangeFeedProcessorOptions instance.

startFromBeginning

public boolean startFromBeginning()

Gets a value indicating whether change feed in the Azure Cosmos DB service should start from beginning (true) or from current (false). By default it's start from current (false).

This is only used when: (1) Lease store is not initialized and is ignored if a lease for partition exists and has continuation token. (2) StartContinuation is not specified. (3) StartTime is not specified.

Returns:

a value indicating whether change feed in the Azure Cosmos DB service should start from.

startFromBeginning

public ChangeFeedProcessorOptions startFromBeginning(boolean startFromBeginning)

Sets a value indicating whether change feed in the Azure Cosmos DB service should start from beginning.

This is only used when: (1) Lease store is not initialized and is ignored if a lease for partition exists and has continuation token. (2) StartContinuation is not specified. (3) StartTime is not specified.

Parameters:

startFromBeginning - Indicates to start from beginning if true

Returns:

the current ChangeFeedProcessorOptions instance.

minScaleCount

public int minScaleCount()

Gets the minimum partition count for the host.

This can be used to increase the number of partitions for the host and thus override equal distribution (which is the default) of leases between hosts.

Returns:

the minimum scale count for the host.

minScaleCount

public ChangeFeedProcessorOptions minScaleCount(int minScaleCount)

Sets the minimum partition count for the host.

This can be used to increase the number of partitions for the host and thus override equal distribution (which is the default) of leases between hosts.

Parameters:

minScaleCount - the minimum partition count for the host.

Returns:

the current ChangeFeedProcessorOptions instance.

maxScaleCount

public int maxScaleCount()

Gets the maximum number of partitions the host can serve.

This can be used property to limit the number of partitions for the host and thus override equal distribution (which is the default) of leases between hosts. DEFAULT is 0 (unlimited).

Returns:

the maximum number of partitions the host can serve.

maxScaleCount

public ChangeFeedProcessorOptions maxScaleCount(int maxScaleCount)

Sets the maximum number of partitions the host can serve.

Parameters:

maxScaleCount - the maximum number of partitions the host can serve.

Returns:

the current ChangeFeedProcessorOptions instance.

discardExistingLeases

public boolean discardExistingLeases()

Gets a value indicating whether on start of the host all existing leases should be deleted and the host should start from scratch.

Returns:

a value indicating whether on start of the host all existing leases should be deleted and the host should start from scratch.

discardExistingLeases

public ChangeFeedProcessorOptions discardExistingLeases(boolean discardExistingLeases)

Sets a value indicating whether on start of the host all existing leases should be deleted and the host should start from scratch.

Parameters:

discardExistingLeases - Indicates whether to discard all existing leases if true

Returns:

the current ChangeFeedProcessorOptions instance.