class MapStateImplWithTTL[K, V] extends OneToOneTTLState with MapState[K, V] with Logging
Class that provides a concrete implementation for map state associated with state variables (with ttl expiration support) used in the streaming transformWithState operator.
- K
- type of key for map state variable
- V
- type of value for map state variable
- returns
- instance of MapState of type [K,V] that can be used to store state persistently
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Inherited
- MapStateImplWithTTL
- Logging
- MapState
- Serializable
- OneToOneTTLState
- TTLState
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Visibility
- Public
- Protected
Instance Constructors
- new MapStateImplWithTTL(store: StateStore, stateName: String, keyExprEnc: ExpressionEncoder[Any], userKeyEnc: ExpressionEncoder[Any], valEncoder: ExpressionEncoder[Any], ttlConfig: TTLConfig, batchTimestampMs: Long, metrics: Map[String, SQLMetric])
- store
- reference to the StateStore instance to be used for storing state
- stateName
- name of the state variable
- keyExprEnc
- Spark SQL encoder for key
- userKeyEnc
- Spark SQL encoder for the map key
- valEncoder
- SQL encoder for state variable
- ttlConfig
- the ttl configuration (time to live duration etc.)
- batchTimestampMs
- current batch processing timestamp.
- metrics
- metrics to be updated as part of stateful processing
Type Members
- implicit class LogStringContext extends AnyRef
- Definition Classes
- Logging
Value Members
- final def !=(arg0: Any): Boolean
- Definition Classes
- AnyRef → Any
- final def ##: Int
- Definition Classes
- AnyRef → Any
- final def ==(arg0: Any): Boolean
- Definition Classes
- AnyRef → Any
- final def asInstanceOf[T0]: T0
- Definition Classes
- Any
- def clear(): Unit
Remove this state.
Remove this state.
- Definition Classes
- MapStateImplWithTTL → MapState
- def clone(): AnyRef
- Attributes
- protected[lang]
- Definition Classes
- AnyRef
- Annotations
- @throws(classOf[java.lang.CloneNotSupportedException]) @IntrinsicCandidate() @native()
- def containsKey(key: K): Boolean
Check if the user key is contained in the map
Check if the user key is contained in the map
- Definition Classes
- MapStateImplWithTTL → MapState
- final def eq(arg0: AnyRef): Boolean
- Definition Classes
- AnyRef
- def equals(arg0: AnyRef): Boolean
- Definition Classes
- AnyRef → Any
- def exists(): Boolean
Whether state exists or not.
Whether state exists or not.
- Definition Classes
- MapStateImplWithTTL → MapState
- final def getClass(): Class[_ <: AnyRef]
- Definition Classes
- AnyRef → Any
- Annotations
- @IntrinsicCandidate() @native()
- def getValue(key: K): V
Get the state value if it exists
Get the state value if it exists
- Definition Classes
- MapStateImplWithTTL → MapState
- def hashCode(): Int
- Definition Classes
- AnyRef → Any
- Annotations
- @IntrinsicCandidate() @native()
- def initializeLogIfNecessary(isInterpreter: Boolean, silent: Boolean): Boolean
- Attributes
- protected
- Definition Classes
- Logging
- def initializeLogIfNecessary(isInterpreter: Boolean): Unit
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- protected
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- Logging
- final def isInstanceOf[T0]: Boolean
- Definition Classes
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- def isTraceEnabled(): Boolean
- Attributes
- protected
- Definition Classes
- Logging
- def iterator(): Iterator[(K, V)]
Get the map associated with grouping key
Get the map associated with grouping key
- Definition Classes
- MapStateImplWithTTL → MapState
- def keys(): Iterator[K]
Get the list of keys present in map associated with grouping key
Get the list of keys present in map associated with grouping key
- Definition Classes
- MapStateImplWithTTL → MapState
- def log: Logger
- Attributes
- protected
- Definition Classes
- Logging
- def logDebug(msg: => String, throwable: Throwable): Unit
- Attributes
- protected
- Definition Classes
- Logging
- def logDebug(entry: LogEntry, throwable: Throwable): Unit
- Attributes
- protected
- Definition Classes
- Logging
- def logDebug(entry: LogEntry): Unit
- Attributes
- protected
- Definition Classes
- Logging
- def logDebug(msg: => String): Unit
- Attributes
- protected
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- Logging
- def logError(msg: => String, throwable: Throwable): Unit
- Attributes
- protected
- Definition Classes
- Logging
- def logError(entry: LogEntry, throwable: Throwable): Unit
- Attributes
- protected
- Definition Classes
- Logging
- def logError(entry: LogEntry): Unit
- Attributes
- protected
- Definition Classes
- Logging
- def logError(msg: => String): Unit
- Attributes
- protected
- Definition Classes
- Logging
- def logInfo(msg: => String, throwable: Throwable): Unit
- Attributes
- protected
- Definition Classes
- Logging
- def logInfo(entry: LogEntry, throwable: Throwable): Unit
- Attributes
- protected
- Definition Classes
- Logging
- def logInfo(entry: LogEntry): Unit
- Attributes
- protected
- Definition Classes
- Logging
- def logInfo(msg: => String): Unit
- Attributes
- protected
- Definition Classes
- Logging
- def logName: String
- Attributes
- protected
- Definition Classes
- Logging
- def logTrace(msg: => String, throwable: Throwable): Unit
- Attributes
- protected
- Definition Classes
- Logging
- def logTrace(entry: LogEntry, throwable: Throwable): Unit
- Attributes
- protected
- Definition Classes
- Logging
- def logTrace(entry: LogEntry): Unit
- Attributes
- protected
- Definition Classes
- Logging
- def logTrace(msg: => String): Unit
- Attributes
- protected
- Definition Classes
- Logging
- def logWarning(msg: => String, throwable: Throwable): Unit
- Attributes
- protected
- Definition Classes
- Logging
- def logWarning(entry: LogEntry, throwable: Throwable): Unit
- Attributes
- protected
- Definition Classes
- Logging
- def logWarning(entry: LogEntry): Unit
- Attributes
- protected
- Definition Classes
- Logging
- def logWarning(msg: => String): Unit
- Attributes
- protected
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- Logging
- final def ne(arg0: AnyRef): Boolean
- Definition Classes
- AnyRef
- final def notify(): Unit
- Definition Classes
- AnyRef
- Annotations
- @IntrinsicCandidate() @native()
- final def notifyAll(): Unit
- Definition Classes
- AnyRef
- Annotations
- @IntrinsicCandidate() @native()
- def removeKey(key: K): Unit
Remove user key from map state
Remove user key from map state
- Definition Classes
- MapStateImplWithTTL → MapState
- final def synchronized[T0](arg0: => T0): T0
- Definition Classes
- AnyRef
- def toString(): String
- Definition Classes
- AnyRef → Any
- def updateValue(key: K, value: V): Unit
Update value for given user key
Update value for given user key
- Definition Classes
- MapStateImplWithTTL → MapState
- def values(): Iterator[V]
Get the list of values present in map associated with grouping key
Get the list of values present in map associated with grouping key
- Definition Classes
- MapStateImplWithTTL → MapState
- final def wait(arg0: Long, arg1: Int): Unit
- Definition Classes
- AnyRef
- Annotations
- @throws(classOf[java.lang.InterruptedException])
- final def wait(arg0: Long): Unit
- Definition Classes
- AnyRef
- Annotations
- @throws(classOf[java.lang.InterruptedException]) @native()
- final def wait(): Unit
- Definition Classes
- AnyRef
- Annotations
- @throws(classOf[java.lang.InterruptedException])
- def withLogContext(context: Map[String, String])(body: => Unit): Unit
- Attributes
- protected
- Definition Classes
- Logging
Deprecated Value Members
- def finalize(): Unit
- Attributes
- protected[lang]
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- @throws(classOf[java.lang.Throwable]) @Deprecated
- Deprecated
(Since version 9)