Package org.apache.kafka.streams.processor.internals

Interface Task

    • Method Detail

      • needsInitializationOrRestoration

        default boolean needsInitializationOrRestoration()

      • isActive

        boolean isActive()

      • isClosed

        boolean isClosed()

      • initializeIfNeeded

        void initializeIfNeeded()
        Throws:
        LockException - could happen when multi-threads within the single instance, could retry
        StreamsException - fatal error, should close the thread

      • completeRestoration

        void completeRestoration()
        Throws:
        StreamsException - fatal error, should close the thread

      • addRecords

        void addRecords​(org.apache.kafka.common.TopicPartition partition,
                java.lang.Iterable<org.apache.kafka.clients.consumer.ConsumerRecord<byte[],​byte[]>> records)

      • commitNeeded

        boolean commitNeeded()

      • prepareCommit

        java.util.Map<org.apache.kafka.common.TopicPartition,​org.apache.kafka.clients.consumer.OffsetAndMetadata> prepareCommit()
        Throws:
        StreamsException - fatal error, should close the thread

      • postCommit

        void postCommit()

      • suspend

        void suspend()

      • resume

        void resume()
        Throws:
        StreamsException - fatal error, should close the thread

      • closeClean

        void closeClean()
        Must be idempotent.

      • closeDirty

        void closeDirty()
        Must be idempotent.

      • update

        void update​(java.util.Set<org.apache.kafka.common.TopicPartition> topicPartitions,
            java.util.Map<java.lang.String,​java.util.List<java.lang.String>> allTopologyNodesToSourceTopics)
        Updates input partitions and topology after rebalance

      • closeCleanAndRecycleState

        void closeCleanAndRecycleState()
        Attempt a clean close but do not close the underlying state

      • revive

        void revive()
        Revive a closed task to a created one; should never throw an exception

      • getStore

        StateStore getStore​(java.lang.String name)

      • inputPartitions

        java.util.Set<org.apache.kafka.common.TopicPartition> inputPartitions()

      • changelogPartitions

        java.util.Collection<org.apache.kafka.common.TopicPartition> changelogPartitions()
        Returns:
        any changelog partitions associated with this task

      • changelogOffsets

        java.util.Map<org.apache.kafka.common.TopicPartition,​java.lang.Long> changelogOffsets()
        Returns:
        the offsets of all the changelog partitions associated with this task, indicating the current positions of the logged state stores of the task.

      • markChangelogAsCorrupted

        void markChangelogAsCorrupted​(java.util.Collection<org.apache.kafka.common.TopicPartition> partitions)

      • purgeableOffsets

        default java.util.Map<org.apache.kafka.common.TopicPartition,​java.lang.Long> purgeableOffsets()

      • recordProcessBatchTime

        default void recordProcessBatchTime​(long processBatchTime)

      • recordProcessTimeRatioAndBufferSize

        default void recordProcessTimeRatioAndBufferSize​(long allTaskProcessMs,
                                                 long now)

      • process

        default boolean process​(long wallClockTime)

      • commitRequested

        default boolean commitRequested()

      • maybePunctuateStreamTime

        default boolean maybePunctuateStreamTime()

      • maybePunctuateSystemTime

        default boolean maybePunctuateSystemTime()