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CollectFunction.scala
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CollectFunction.scala
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/*
* Copyright (c) 2002-2016 "Neo Technology,"
* Network Engine for Objects in Lund AB [http://neotechnology.com]
*
* This file is part of Neo4j.
*
* Neo4j is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package org.neo4j.cypher.internal.compiler.v3_2.pipes.aggregation
import org.neo4j.cypher.internal.compiler.v3_2._
import org.neo4j.cypher.internal.compiler.v3_2.commands.expressions.Expression
import org.neo4j.cypher.internal.compiler.v3_2.pipes.QueryState
import scala.collection.mutable.ListBuffer
class CollectFunction(value:Expression) extends AggregationFunction {
val collection = new ListBuffer[Any]()
def apply(data: ExecutionContext)(implicit state:QueryState) {
value(data) match {
case null =>
case v => collection += v
}
}
def result(implicit state: QueryState): Any = collection.toIndexedSeq
}