Trait/Object

org.apache.spark.sql.cassandra

PredicateOps

Related Docs: object PredicateOps | package cassandra

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trait PredicateOps[Predicate] extends AnyRef

A unified API for predicates, used by BasicCassandraPredicatePushDown.

Keeps all the Spark-specific stuff out of BasicCassandraPredicatePushDown It is also easy to plug-in custom predicate implementations for unit-testing.

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Known Subclasses
ExpressionOps, FilterOps
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Abstract Value Members

  1. abstract def columnName(p: Predicate): String

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    Returns the column name of the only column in the predicate.

    Returns the column name of the only column in the predicate. Will throw IllegalArgumentException if predicate is not a single-column predicate.

  2. abstract def isEqualToPredicate(p: Predicate): Boolean

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    Returns true for predicates of type: column = value

  3. abstract def isInPredicate(p: Predicate): Boolean

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    Returns true for predicates of type: column IN (value1, value2, ...)

  4. abstract def isRangePredicate(p: Predicate): Boolean

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    Returns true for predicates of type: column (< | <= | >= | >) value

  5. abstract def isSingleColumnPredicate(p: Predicate): Boolean

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    Returns true if the predicate restricts exactly one column.

Concrete Value Members

  1. final def !=(arg0: Any): Boolean

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  2. final def ##(): Int

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  3. final def ==(arg0: Any): Boolean

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  4. final def asInstanceOf[T0]: T0

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  5. def clone(): AnyRef

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  6. final def eq(arg0: AnyRef): Boolean

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  7. def equals(arg0: Any): Boolean

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  8. def finalize(): Unit

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  9. final def getClass(): Class[_]

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  11. final def isInstanceOf[T0]: Boolean

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  12. final def ne(arg0: AnyRef): Boolean

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  13. final def notify(): Unit

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  14. final def notifyAll(): Unit

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  15. final def synchronized[T0](arg0: ⇒ T0): T0

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  16. def toString(): String

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  17. final def wait(): Unit

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  18. final def wait(arg0: Long, arg1: Int): Unit

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  19. final def wait(arg0: Long): Unit

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