shark.memstore2.ColumnarStruct.scala Maven / Gradle / Ivy
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/*
* Copyright (C) 2012 The Regents of The University California.
* All rights reserved.
*
* 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 shark.memstore2
import java.util.{List => JList, ArrayList => JArrayList}
import shark.memstore2.column.ColumnIterator
/**
* A struct returned by the TablePartitionIterator. It contains references to the same set of
* ColumnIterators and use those to return individual fields back to the object inspectors.
*/
class ColumnarStruct(columnIterators: Array[ColumnIterator]) {
def getField(columnId: Int): Object = columnIterators(columnId).current
def getFieldsAsList(): JList[Object] = {
val list = new JArrayList[Object](columnIterators.length)
var i = 0
while (i < columnIterators.length) {
list.add(columnIterators(i).current)
i += 1
}
list
}
}