com.stratio.cassandra.lucene.partitioning.PartitionerOnNone.scala Maven / Gradle / Ivy
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/*
* Copyright (C) 2014 Stratio (http://stratio.com)
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.stratio.cassandra.lucene.partitioning
import org.apache.cassandra.db.{DecoratedKey, ReadCommand}
import org.apache.cassandra.schema.TableMetadata
/** [[Partitioner]] with no action, equivalent to just don't partitioning the index.
*
* @author Andres de la Pena `[email protected]`
*/
case class PartitionerOnNone() extends Partitioner {
/** @inheritdoc */
override def numPartitions: Int = 1
/** @inheritdoc */
override def partition(key: DecoratedKey): Int = 0
/** @inheritdoc */
override def partitions(command: ReadCommand): List[Int] = allPartitions
}
/** Companion object for [[PartitionerOnNone]]. */
object PartitionerOnNone {
/** [[PartitionerOnNone]] builder. */
case class Builder() extends Partitioner.Builder {
override def build(metadata: TableMetadata): PartitionerOnNone = PartitionerOnNone()
}
}