WritableToCassandra

Abstract Value Members

abstract def saveToCassandra(keyspaceName: String, tableName: String, columnNames: SomeColumns, batchSize: Int)(implicit rwf: RowWriterFactory[T]): Unit

Saves the data from RDD to a Cassandra table.
Saves the data from RDD to a Cassandra table. Uses the specified column names with an additional batch size.
```
rdd.saveToCassandra("test", "words", SomeColumns("word", "count"), size)
```
keyspaceName
the name of the Keyspace to use
tableName
the name of the Table to use
columnNames
The list of columns to save data to. Uses only the unique column names, and you must select at least all primary key columns. All other fields are discarded. Non-selected property/column names are left unchanged.
batchSize
The batch size. By default, if the batch size is unspecified, the right amount is calculated automatically according the average row size. Specify explicit value here only if you find automatically tuned batch size doesn't result in optimal performance. Larger batches raise memory use by temporary buffers and may incur larger GC pressure on the server. Small batches would result in more round trips and worse throughput. Typically sending a few kilobytes of data per every batch is enough to achieve good performance.
abstract def saveToCassandra(keyspaceName: String, tableName: String, columnNames: SomeColumns)(implicit rwf: RowWriterFactory[T]): Unit

Saves the data from RDD to a Cassandra table.
Saves the data from RDD to a Cassandra table. Uses the specified column names.
```
rdd.saveToCassandra("test", "words", SomeColumns("word", "count"))
```
keyspaceName
the name of the Keyspace to use
tableName
the name of the Table to use
columnNames
The list of column names to save data to. Uses only the unique column names, and you must select at least all primary key columns. All other fields are discarded. Non-selected property/column names are left unchanged.
abstract def saveToCassandra(keyspaceName: String, tableName: String)(implicit rwf: RowWriterFactory[T]): Unit

Saves the data from RDD to a Cassandra table.
Saves the data from RDD to a Cassandra table. By default, it saves all properties that have corresponding Cassandra columns.
Example:
```
CREATE KEYSPACE test WITH replication = {'class': 'SimpleStrategy', 'replication_factor': 1 };
CREATE TABLE test.words(word VARCHAR PRIMARY KEY, count INT, other VARCHAR);
```
```
case class WordCount(word: String, count: Int, other: String)
val rdd = sc.parallelize(Seq(WordCount("foo", 5, "bar")))
```
By default, the underlying RDD class must provide data for all columns:
```
rdd.saveToCassandra("test", "words")
```
By default, writes are performed at ConsistencyLevel.ONE in order to leverage data-locality and minimize network traffic. This write consistency level is controlled by the following property:
- spark.cassandra.output.consistency.level: consistency level for RDD writes, string matching the ConsistencyLevel enum name.
keyspaceName
the name of the Keyspace to use
tableName
the name of the Table to use

Concrete Value Members

final def !=(arg0: AnyRef): Boolean

Definition Classes
AnyRef
final def !=(arg0: Any): Boolean

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Any
final def ##(): Int

Definition Classes
AnyRef → Any
def +(other: String): String

Implicit information
This member is added by an implicit conversion from WritableToCassandra[T] to StringAdd performed by method any2stringadd in scala.Predef.
Definition Classes
StringAdd
def ->[B](y: B): (WritableToCassandra[T], B)

Implicit information
This member is added by an implicit conversion from WritableToCassandra[T] to ArrowAssoc[WritableToCassandra[T]] performed by method any2ArrowAssoc in scala.Predef.
Definition Classes
ArrowAssoc
Annotations
@inline()
final def ==(arg0: AnyRef): Boolean

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final def ==(arg0: Any): Boolean

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final def asInstanceOf[T0]: T0

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Any
def clone(): AnyRef

Attributes
protected[java.lang]
Definition Classes
AnyRef
Annotations
@throws( ... )
def ensuring(cond: (WritableToCassandra[T]) ⇒ Boolean, msg: ⇒ Any): WritableToCassandra[T]

Implicit information
This member is added by an implicit conversion from WritableToCassandra[T] to Ensuring[WritableToCassandra[T]] performed by method any2Ensuring in scala.Predef.
Definition Classes
Ensuring
def ensuring(cond: (WritableToCassandra[T]) ⇒ Boolean): WritableToCassandra[T]

Implicit information
This member is added by an implicit conversion from WritableToCassandra[T] to Ensuring[WritableToCassandra[T]] performed by method any2Ensuring in scala.Predef.
Definition Classes
Ensuring
def ensuring(cond: Boolean, msg: ⇒ Any): WritableToCassandra[T]

Implicit information
This member is added by an implicit conversion from WritableToCassandra[T] to Ensuring[WritableToCassandra[T]] performed by method any2Ensuring in scala.Predef.
Definition Classes
Ensuring
def ensuring(cond: Boolean): WritableToCassandra[T]

Implicit information
This member is added by an implicit conversion from WritableToCassandra[T] to Ensuring[WritableToCassandra[T]] performed by method any2Ensuring in scala.Predef.
Definition Classes
Ensuring
final def eq(arg0: AnyRef): Boolean

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AnyRef
def equals(arg0: Any): Boolean

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def finalize(): Unit

Attributes
protected[java.lang]
Definition Classes
AnyRef
Annotations
@throws( classOf[java.lang.Throwable] )
def formatted(fmtstr: String): String

Implicit information
This member is added by an implicit conversion from WritableToCassandra[T] to StringFormat performed by method any2stringfmt in scala.Predef.
Definition Classes
StringFormat
Annotations
@inline()
final def getClass(): Class[_]

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def hashCode(): Int

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final def isInstanceOf[T0]: Boolean

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final def ne(arg0: AnyRef): Boolean

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final def notify(): Unit

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final def notifyAll(): Unit

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

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def toString(): String

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final def wait(): Unit

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

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Annotations
@throws( ... )
final def wait(arg0: Long): Unit

Definition Classes
AnyRef
Annotations
@throws( ... )
def →[B](y: B): (WritableToCassandra[T], B)

Implicit information
This member is added by an implicit conversion from WritableToCassandra[T] to ArrowAssoc[WritableToCassandra[T]] performed by method any2ArrowAssoc in scala.Predef.
Definition Classes
ArrowAssoc

Shadowed Implicit Value Members

val self: Any
Implicit information
This member is added by an implicit conversion from WritableToCassandra[T] to StringAdd performed by method any2stringadd in scala.Predef.
Shadowing
This implicitly inherited member is ambiguous. One or more implicitly inherited members have similar signatures, so calling this member may produce an ambiguous implicit conversion compiler error.
To access this member you can use a type ascription:
(writableToCassandra: StringAdd).self
Definition Classes
StringAdd
val self: Any
Implicit information
This member is added by an implicit conversion from WritableToCassandra[T] to StringFormat performed by method any2stringfmt in scala.Predef.
Shadowing
This implicitly inherited member is ambiguous. One or more implicitly inherited members have similar signatures, so calling this member may produce an ambiguous implicit conversion compiler error.
To access this member you can use a type ascription:
(writableToCassandra: StringFormat).self
Definition Classes
StringFormat

Deprecated Value Members

def x: WritableToCassandra[T]
Implicit information
This member is added by an implicit conversion from WritableToCassandra[T] to ArrowAssoc[WritableToCassandra[T]] performed by method any2ArrowAssoc in scala.Predef.
Shadowing
This implicitly inherited member is ambiguous. One or more implicitly inherited members have similar signatures, so calling this member may produce an ambiguous implicit conversion compiler error.
To access this member you can use a type ascription:
(writableToCassandra: ArrowAssoc[WritableToCassandra[T]]).x
Definition Classes
ArrowAssoc
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@deprecated
Deprecated
(Since version 2.10.0) Use leftOfArrow instead
def x: WritableToCassandra[T]
Implicit information
This member is added by an implicit conversion from WritableToCassandra[T] to Ensuring[WritableToCassandra[T]] performed by method any2Ensuring in scala.Predef.
Shadowing
This implicitly inherited member is ambiguous. One or more implicitly inherited members have similar signatures, so calling this member may produce an ambiguous implicit conversion compiler error.
To access this member you can use a type ascription:
(writableToCassandra: Ensuring[WritableToCassandra[T]]).x
Definition Classes
Ensuring
Annotations
@deprecated
Deprecated
(Since version 2.10.0) Use resultOfEnsuring instead

trait WritableToCassandra[T] extends AnyRef

Abstract Value Members

abstract def saveToCassandra(keyspaceName: String, tableName: String, columnNames: SomeColumns, batchSize: Int)(implicit rwf: RowWriterFactory[T]): Unit

abstract def saveToCassandra(keyspaceName: String, tableName: String, columnNames: SomeColumns)(implicit rwf: RowWriterFactory[T]): Unit

abstract def saveToCassandra(keyspaceName: String, tableName: String)(implicit rwf: RowWriterFactory[T]): Unit

Concrete Value Members

final def !=(arg0: AnyRef): Boolean

final def !=(arg0: Any): Boolean

final def ##(): Int

def +(other: String): String

def ->[B](y: B): (WritableToCassandra[T], B)

final def ==(arg0: AnyRef): Boolean

final def ==(arg0: Any): Boolean

final def asInstanceOf[T0]: T0

def clone(): AnyRef

def ensuring(cond: (WritableToCassandra[T]) ⇒ Boolean, msg: ⇒ Any): WritableToCassandra[T]

def ensuring(cond: (WritableToCassandra[T]) ⇒ Boolean): WritableToCassandra[T]

def ensuring(cond: Boolean, msg: ⇒ Any): WritableToCassandra[T]

def ensuring(cond: Boolean): WritableToCassandra[T]

final def eq(arg0: AnyRef): Boolean

def equals(arg0: Any): Boolean

def finalize(): Unit

def formatted(fmtstr: String): String

final def getClass(): Class[_]

def hashCode(): Int

final def isInstanceOf[T0]: Boolean

final def ne(arg0: AnyRef): Boolean

final def notify(): Unit

final def notifyAll(): Unit

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

def toString(): String

final def wait(): Unit

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

final def wait(arg0: Long): Unit

def →[B](y: B): (WritableToCassandra[T], B)

Shadowed Implicit Value Members

val self: Any

val self: Any

Deprecated Value Members

def x: WritableToCassandra[T]

def x: WritableToCassandra[T]

Inherited from AnyRef

Inherited from Any

Inherited by implicit conversion any2stringadd from WritableToCassandra[T] to StringAdd

Inherited by implicit conversion any2stringfmt from WritableToCassandra[T] to StringFormat

Inherited by implicit conversion any2ArrowAssoc from WritableToCassandra[T] to ArrowAssoc[WritableToCassandra[T]]

Inherited by implicit conversion any2Ensuring from WritableToCassandra[T] to Ensuring[WritableToCassandra[T]]

Ungrouped