kafka.consumer

ConsumerIterator

class ConsumerIterator[T] extends IteratorTemplate[MessageAndMetadata[T]] with Logging

An iterator that blocks until a value can be read from the supplied queue. The iterator takes a shutdownCommand object which can be added to the queue to trigger a shutdown

Inherited
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  2. Show all
  1. Logging
  2. IteratorTemplate
  3. Iterator
  4. Iterator
  5. TraversableOnce
  6. AnyRef
  7. Any
Visibility
  1. Public
  2. All

Instance constructors

  1. new ConsumerIterator(channel: BlockingQueue[FetchedDataChunk], consumerTimeoutMs: Int, decoder: Decoder[T], enableShallowIterator: Boolean)

Value Members

  1. def !=(arg0: AnyRef): Boolean

    attributes: final
    definition classes: AnyRef
  2. def !=(arg0: Any): Boolean

    o != arg0 is the same as !(o == (arg0)).

    o != arg0 is the same as !(o == (arg0)).

    arg0

    the object to compare against this object for dis-equality.

    returns

    false if the receiver object is equivalent to the argument; true otherwise.

    attributes: final
    definition classes: Any
  3. def ##(): Int

    attributes: final
    definition classes: AnyRef → Any
  4. def $asInstanceOf[T0](): T0

    attributes: final
    definition classes: AnyRef
  5. def $isInstanceOf[T0](): Boolean

    attributes: final
    definition classes: AnyRef
  6. def ++[B >: MessageAndMetadata[T]](that: ⇒ Iterator[B]): Iterator[B]

    definition classes: Iterator
  7. def /:[B](z: B)(op: (B, MessageAndMetadata[T]) ⇒ B): B

    definition classes: TraversableOnce
  8. def :\[B](z: B)(op: (MessageAndMetadata[T], B) ⇒ B): B

    definition classes: TraversableOnce
  9. def ==(arg0: AnyRef): Boolean

    o == arg0 is the same as if (o eq null) arg0 eq null else o.equals(arg0).

    o == arg0 is the same as if (o eq null) arg0 eq null else o.equals(arg0).

    arg0

    the object to compare against this object for equality.

    returns

    true if the receiver object is equivalent to the argument; false otherwise.

    attributes: final
    definition classes: AnyRef
  10. def ==(arg0: Any): Boolean

    o == arg0 is the same as o.equals(arg0).

    o == arg0 is the same as o.equals(arg0).

    arg0

    the object to compare against this object for equality.

    returns

    true if the receiver object is equivalent to the argument; false otherwise.

    attributes: final
    definition classes: Any
  11. def addString(b: StringBuilder): StringBuilder

    definition classes: TraversableOnce
  12. def addString(b: StringBuilder, sep: String): StringBuilder

    definition classes: TraversableOnce
  13. def addString(b: StringBuilder, start: String, sep: String, end: String): StringBuilder

    definition classes: TraversableOnce
  14. def allDone(): MessageAndMetadata[T]

    attributes: protected
    definition classes: IteratorTemplate
  15. def append[B >: MessageAndMetadata[T]](that: Iterator[B]): Iterator[B]

    definition classes: Iterator
      deprecated:
    1. use ++

  16. def asInstanceOf[T0]: T0

    This method is used to cast the receiver object to be of type T0.

    This method is used to cast the receiver object to be of type T0.

    Note that the success of a cast at runtime is modulo Scala's erasure semantics. Therefore the expression1.asInstanceOf[String] will throw a ClassCastException at runtime, while the expressionList(1).asInstanceOf[List[String]] will not. In the latter example, because the type argument is erased as part of compilation it is not possible to check whether the contents of the list are of the requested typed.

    returns

    the receiver object.

    attributes: final
    definition classes: Any
  17. def buffered: BufferedIterator[MessageAndMetadata[T]]

    definition classes: Iterator
  18. def clearCurrentChunk(): Unit

  19. def clone(): AnyRef

    This method creates and returns a copy of the receiver object.

    This method creates and returns a copy of the receiver object.

    The default implementation of the clone method is platform dependent.

    returns

    a copy of the receiver object.

    attributes: protected
    definition classes: AnyRef
  20. def collect[B](pf: PartialFunction[MessageAndMetadata[T], B]): Iterator[B]

    definition classes: Iterator
  21. def contains(elem: Any): Boolean

    definition classes: Iterator
  22. def copyToArray[B >: MessageAndMetadata[T]](xs: Array[B], start: Int, len: Int): Unit

    definition classes: Iterator → TraversableOnce
  23. def copyToArray[B >: MessageAndMetadata[T]](xs: Array[B]): Unit

    definition classes: TraversableOnce
  24. def copyToArray[B >: MessageAndMetadata[T]](xs: Array[B], start: Int): Unit

    definition classes: TraversableOnce
  25. def copyToBuffer[B >: MessageAndMetadata[T]](dest: Buffer[B]): Unit

    definition classes: TraversableOnce
  26. def count(p: (MessageAndMetadata[T]) ⇒ Boolean): Int

    definition classes: TraversableOnce
  27. def counted: CountedIterator[MessageAndMetadata[T]]

    definition classes: Iterator
      deprecated:
    1. use zipWithIndex in Iterator

  28. def debug(msg: ⇒ String, e: ⇒ Throwable): Unit

    definition classes: Logging
  29. def debug(e: ⇒ Throwable): Any

    definition classes: Logging
  30. def debug(msg: ⇒ String): Unit

    definition classes: Logging
  31. def drop(n: Int): Iterator[MessageAndMetadata[T]]

    definition classes: Iterator
  32. def dropWhile(p: (MessageAndMetadata[T]) ⇒ Boolean): Iterator[MessageAndMetadata[T]]

    definition classes: Iterator
  33. def duplicate: (Iterator[MessageAndMetadata[T]], Iterator[MessageAndMetadata[T]])

    definition classes: Iterator
  34. val enableShallowIterator: Boolean

  35. def eq(arg0: AnyRef): Boolean

    This method is used to test whether the argument (arg0) is a reference to the receiver object (this).

    This method is used to test whether the argument (arg0) is a reference to the receiver object (this).

    The eq method implements an [http://en.wikipedia.org/wiki/Equivalence_relation equivalence relation] on non-null instances of AnyRef: * It is reflexive: for any non-null instance x of type AnyRef, x.eq(x) returns true. * It is symmetric: for any non-null instances x and y of type AnyRef, x.eq(y) returns true if and only if y.eq(x) returns true. * It is transitive: for any non-null instances x, y, and z of type AnyRef if x.eq(y) returns true and y.eq(z) returns true, then x.eq(z) returns true.

    Additionally, the eq method has three other properties. * It is consistent: for any non-null instances x and y of type AnyRef, multiple invocations of x.eq(y) consistently returns true or consistently returns false. * For any non-null instance x of type AnyRef, x.eq(null) and null.eq(x) returns false. * null.eq(null) returns true.

    When overriding the equals or hashCode methods, it is important to ensure that their behavior is consistent with reference equality. Therefore, if two objects are references to each other (o1 eq o2), they should be equal to each other (o1 == o2) and they should hash to the same value (o1.hashCode == o2.hashCode).

    arg0

    the object to compare against this object for reference equality.

    returns

    true if the argument is a reference to the receiver object; false otherwise.

    attributes: final
    definition classes: AnyRef
  36. def equals(arg0: Any): Boolean

    This method is used to compare the receiver object (this) with the argument object (arg0) for equivalence.

    This method is used to compare the receiver object (this) with the argument object (arg0) for equivalence.

    The default implementations of this method is an [http://en.wikipedia.org/wiki/Equivalence_relation equivalence relation]: * It is reflexive: for any instance x of type Any, x.equals(x) should return true. * It is symmetric: for any instances x and y of type Any, x.equals(y) should return true if and only if y.equals(x) returns true. * It is transitive: for any instances x, y, and z of type AnyRef if x.equals(y) returns true and y.equals(z) returns true, then x.equals(z) should return true.

    If you override this method, you should verify that your implementation remains an equivalence relation. Additionally, when overriding this method it is often necessary to override hashCode to ensure that objects that are "equal" (o1.equals(o2) returns true) hash to the same scala.Int (o1.hashCode.equals(o2.hashCode)).

    arg0

    the object to compare against this object for equality.

    returns

    true if the receiver object is equivalent to the argument; false otherwise.

    definition classes: AnyRef → Any
  37. def error(msg: ⇒ String, e: ⇒ Throwable): Unit

    definition classes: Logging
  38. def error(e: ⇒ Throwable): Any

    definition classes: Logging
  39. def error(msg: ⇒ String): Unit

    definition classes: Logging
  40. def exists(p: (MessageAndMetadata[T]) ⇒ Boolean): Boolean

    definition classes: Iterator → TraversableOnce
  41. def fatal(msg: ⇒ String, e: ⇒ Throwable): Unit

    definition classes: Logging
  42. def fatal(e: ⇒ Throwable): Any

    definition classes: Logging
  43. def fatal(msg: ⇒ String): Unit

    definition classes: Logging
  44. def filter(p: (MessageAndMetadata[T]) ⇒ Boolean): Iterator[MessageAndMetadata[T]]

    definition classes: Iterator
  45. def filterNot(p: (MessageAndMetadata[T]) ⇒ Boolean): Iterator[MessageAndMetadata[T]]

    definition classes: Iterator
  46. def finalize(): Unit

    This method is called by the garbage collector on the receiver object when garbage collection determines that there are no more references to the object.

    This method is called by the garbage collector on the receiver object when garbage collection determines that there are no more references to the object.

    The details of when and if the finalize method are invoked, as well as the interaction between finalizeand non-local returns and exceptions, are all platform dependent.

    attributes: protected
    definition classes: AnyRef
  47. def find(p: (MessageAndMetadata[T]) ⇒ Boolean): Option[MessageAndMetadata[T]]

    definition classes: Iterator → TraversableOnce
  48. def findIndexOf(p: (MessageAndMetadata[T]) ⇒ Boolean): Int

    definition classes: Iterator
      deprecated:
    1. use indexWhere instead

  49. def flatMap[B](f: (MessageAndMetadata[T]) ⇒ Iterator[B]): Iterator[B]

    definition classes: Iterator
  50. def foldLeft[B](z: B)(op: (B, MessageAndMetadata[T]) ⇒ B): B

    definition classes: TraversableOnce
  51. def foldRight[B](z: B)(op: (MessageAndMetadata[T], B) ⇒ B): B

    definition classes: TraversableOnce
  52. def forall(p: (MessageAndMetadata[T]) ⇒ Boolean): Boolean

    definition classes: Iterator → TraversableOnce
  53. def foreach[U](f: (MessageAndMetadata[T]) ⇒ U): Unit

    definition classes: Iterator → TraversableOnce
  54. def getClass(): java.lang.Class[_]

    Returns a representation that corresponds to the dynamic class of the receiver object.

    Returns a representation that corresponds to the dynamic class of the receiver object.

    The nature of the representation is platform dependent.

    returns

    a representation that corresponds to the dynamic class of the receiver object.

    attributes: final
    definition classes: AnyRef
  55. def grouped[B >: MessageAndMetadata[T]](size: Int): GroupedIterator[B]

    definition classes: Iterator
  56. def hasDefiniteSize: Boolean

    definition classes: Iterator → TraversableOnce
  57. def hasNext(): Boolean

    definition classes: IteratorTemplate → Iterator → Iterator
  58. def hashCode(): Int

    Returns a hash code value for the object.

    Returns a hash code value for the object.

    The default hashing algorithm is platform dependent.

    Note that it is allowed for two objects to have identical hash codes (o1.hashCode.equals(o2.hashCode)) yet not be equal (o1.equals(o2) returns false). A degenerate implementation could always return 0. However, it is required that if two objects are equal (o1.equals(o2) returns true) that they have identical hash codes (o1.hashCode.equals(o2.hashCode)). Therefore, when overriding this method, be sure to verify that the behavior is consistent with the equals method.

    returns

    the hash code value for the object.

    definition classes: AnyRef → Any
  59. def indexOf[B >: MessageAndMetadata[T]](elem: B): Int

    definition classes: Iterator
  60. def indexWhere(p: (MessageAndMetadata[T]) ⇒ Boolean): Int

    definition classes: Iterator
  61. def info(msg: ⇒ String, e: ⇒ Throwable): Unit

    definition classes: Logging
  62. def info(e: ⇒ Throwable): Any

    definition classes: Logging
  63. def info(msg: ⇒ String): Unit

    definition classes: Logging
  64. def isEmpty: Boolean

    definition classes: Iterator → TraversableOnce
  65. def isInstanceOf[T0]: Boolean

    This method is used to test whether the dynamic type of the receiver object is T0.

    This method is used to test whether the dynamic type of the receiver object is T0.

    Note that the test result of the test is modulo Scala's erasure semantics. Therefore the expression1.isInstanceOf[String] will return false, while the expression List(1).isInstanceOf[List[String]] will return true. In the latter example, because the type argument is erased as part of compilation it is not possible to check whether the contents of the list are of the requested typed.

    returns

    true if the receiver object is an instance of erasure of type T0; false otherwise.

    attributes: final
    definition classes: Any
  66. def isTraversableAgain: Boolean

    definition classes: Iterator → TraversableOnce
  67. def length: Int

    definition classes: Iterator
  68. var logIdent: String

    attributes: protected
    definition classes: Logging
  69. lazy val logger: Logger

    definition classes: Logging
  70. val loggerName: String

    definition classes: Logging
  71. def makeNext(): MessageAndMetadata[T]

    attributes: protected
    definition classes: ConsumerIteratorIteratorTemplate
  72. def map[B](f: (MessageAndMetadata[T]) ⇒ B): Iterator[B]

    definition classes: Iterator
  73. def max[B >: MessageAndMetadata[T]](implicit cmp: Ordering[B]): MessageAndMetadata[T]

    definition classes: TraversableOnce
  74. def maybeComputeNext(): Boolean

    definition classes: IteratorTemplate
  75. def min[B >: MessageAndMetadata[T]](implicit cmp: Ordering[B]): MessageAndMetadata[T]

    definition classes: TraversableOnce
  76. def mkString: String

    definition classes: TraversableOnce
  77. def mkString(sep: String): String

    definition classes: TraversableOnce
  78. def mkString(start: String, sep: String, end: String): String

    definition classes: TraversableOnce
  79. def ne(arg0: AnyRef): Boolean

    o.ne(arg0) is the same as !(o.eq(arg0)).

    o.ne(arg0) is the same as !(o.eq(arg0)).

    arg0

    the object to compare against this object for reference dis-equality.

    returns

    false if the argument is not a reference to the receiver object; true otherwise.

    attributes: final
    definition classes: AnyRef
  80. def next(): MessageAndMetadata[T]

    definition classes: ConsumerIteratorIteratorTemplate → Iterator → Iterator
  81. def nonEmpty: Boolean

    definition classes: TraversableOnce
  82. def notify(): Unit

    Wakes up a single thread that is waiting on the receiver object's monitor.

    Wakes up a single thread that is waiting on the receiver object's monitor.

    attributes: final
    definition classes: AnyRef
  83. def notifyAll(): Unit

    Wakes up all threads that are waiting on the receiver object's monitor.

    Wakes up all threads that are waiting on the receiver object's monitor.

    attributes: final
    definition classes: AnyRef
  84. def padTo[A1 >: MessageAndMetadata[T]](len: Int, elem: A1): Iterator[A1]

    definition classes: Iterator
  85. def partition(p: (MessageAndMetadata[T]) ⇒ Boolean): (Iterator[MessageAndMetadata[T]], Iterator[MessageAndMetadata[T]])

    definition classes: Iterator
  86. def patch[B >: MessageAndMetadata[T]](from: Int, patchElems: Iterator[B], replaced: Int): Iterator[B]

    definition classes: Iterator
  87. def product[B >: MessageAndMetadata[T]](implicit num: Numeric[B]): B

    definition classes: TraversableOnce
  88. def readInto[B >: MessageAndMetadata[T]](xs: Array[B]): Unit

    definition classes: Iterator
      deprecated:
    1. use copyToArray instead

  89. def readInto[B >: MessageAndMetadata[T]](xs: Array[B], start: Int): Unit

    definition classes: Iterator
      deprecated:
    1. use copyToArray instead

  90. def readInto[B >: MessageAndMetadata[T]](xs: Array[B], start: Int, sz: Int): Unit

    definition classes: Iterator
      deprecated:
    1. use copyToArray instead

  91. def reduceLeft[B >: MessageAndMetadata[T]](op: (B, MessageAndMetadata[T]) ⇒ B): B

    definition classes: TraversableOnce
  92. def reduceLeftOption[B >: MessageAndMetadata[T]](op: (B, MessageAndMetadata[T]) ⇒ B): Option[B]

    definition classes: TraversableOnce
  93. def reduceRight[B >: MessageAndMetadata[T]](op: (MessageAndMetadata[T], B) ⇒ B): B

    definition classes: TraversableOnce
  94. def reduceRightOption[B >: MessageAndMetadata[T]](op: (MessageAndMetadata[T], B) ⇒ B): Option[B]

    definition classes: TraversableOnce
  95. def remove(): Nothing

    definition classes: IteratorTemplate → Iterator
  96. def resetState(): Unit

    attributes: protected
    definition classes: IteratorTemplate
  97. def reversed: List[MessageAndMetadata[T]]

    attributes: protected[this]
    definition classes: TraversableOnce
  98. def sameElements(that: Iterator[_]): Boolean

    definition classes: Iterator
  99. def size: Int

    definition classes: TraversableOnce
  100. def slice(from: Int, until: Int): Iterator[MessageAndMetadata[T]]

    definition classes: Iterator
  101. def sliding[B >: MessageAndMetadata[T]](size: Int, step: Int): GroupedIterator[B]

    definition classes: Iterator
  102. def sum[B >: MessageAndMetadata[T]](implicit num: Numeric[B]): B

    definition classes: TraversableOnce
  103. def synchronized[T0](arg0: T0): T0

    attributes: final
    definition classes: AnyRef
  104. def take(n: Int): Iterator[MessageAndMetadata[T]]

    definition classes: Iterator
  105. def takeWhile(p: (MessageAndMetadata[T]) ⇒ Boolean): Iterator[MessageAndMetadata[T]]

    definition classes: Iterator
  106. def toArray[B >: MessageAndMetadata[T]](implicit arg0: ClassManifest[B]): Array[B]

    definition classes: TraversableOnce
  107. def toBuffer[B >: MessageAndMetadata[T]]: Buffer[B]

    definition classes: TraversableOnce
  108. def toIndexedSeq[B >: MessageAndMetadata[T]]: IndexedSeq[B]

    definition classes: TraversableOnce
  109. def toIterable: Iterable[MessageAndMetadata[T]]

    definition classes: TraversableOnce
  110. def toIterator: Iterator[MessageAndMetadata[T]]

    definition classes: Iterator → TraversableOnce
  111. def toList: List[MessageAndMetadata[T]]

    definition classes: TraversableOnce
  112. def toMap[T, U](implicit ev: <:<[MessageAndMetadata[T], (T, U)]): Map[T, U]

    definition classes: TraversableOnce
  113. def toSeq: Seq[MessageAndMetadata[T]]

    definition classes: TraversableOnce
  114. def toSet[B >: MessageAndMetadata[T]]: Set[B]

    definition classes: TraversableOnce
  115. def toStream: Stream[MessageAndMetadata[T]]

    definition classes: Iterator → TraversableOnce
  116. def toString(): String

    Returns a string representation of the object.

    Returns a string representation of the object.

    The default representation is platform dependent.

    returns

    a string representation of the object.

    definition classes: Iterator → AnyRef → Any
  117. def toTraversable: Traversable[MessageAndMetadata[T]]

    definition classes: Iterator → TraversableOnce
  118. def trace(msg: ⇒ String, e: ⇒ Throwable): Unit

    definition classes: Logging
  119. def trace(e: ⇒ Throwable): Any

    definition classes: Logging
  120. def trace(msg: ⇒ String): Unit

    definition classes: Logging
  121. def wait(): Unit

    attributes: final
    definition classes: AnyRef
  122. def wait(arg0: Long, arg1: Int): Unit

    attributes: final
    definition classes: AnyRef
  123. def wait(arg0: Long): Unit

    attributes: final
    definition classes: AnyRef
  124. def warn(msg: ⇒ String, e: ⇒ Throwable): Unit

    definition classes: Logging
  125. def warn(e: ⇒ Throwable): Any

    definition classes: Logging
  126. def warn(msg: ⇒ String): Unit

    definition classes: Logging
  127. def withFilter(p: (MessageAndMetadata[T]) ⇒ Boolean): Iterator[MessageAndMetadata[T]]

    definition classes: Iterator
  128. def zip[B](that: Iterator[B]): Iterator[(MessageAndMetadata[T], B)]

    definition classes: Iterator
  129. def zipAll[B, A1 >: MessageAndMetadata[T], B1 >: B](that: Iterator[B], thisElem: A1, thatElem: B1): Iterator[(A1, B1)]

    definition classes: Iterator
  130. def zipWithIndex: Iterator[(MessageAndMetadata[T], Int)] {...}

    definition classes: Iterator