org.neo4j.cypher.internal.logical.plans.UndirectedRelationshipIndexContainsScan.scala Maven / Gradle / Ivy

Go to download
Show more of this group Show more artifacts with this name
Show all versions of neo4j-cypher-logical-plans Show documentation
Cypher logical plans
There is a newer version: 5.25.1
Show newest version
/*
 * Copyright (c) "Neo4j"
 * Neo4j Sweden AB [http://neo4j.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 .
 */
package org.neo4j.cypher.internal.logical.plans

import org.neo4j.cypher.internal.expressions.Expression
import org.neo4j.cypher.internal.expressions.RelationshipTypeToken
import org.neo4j.cypher.internal.util.attribution.IdGen
import org.neo4j.cypher.internal.util.attribution.SameId
import org.neo4j.graphdb.schema.IndexType

/**
 * This operator does a full scan of an index, producing two rows, on for each direction, for all entries that contain a string value
 *
 * Given each found `relationship`, the rows will have the following structure:
 *
 *  - `{idName: relationship, leftNode: relationship.startNode, relationship.endNode}`
 *  - `{idName: relationship, leftNode: relationship.endNode, relationship.startNode}`
 */
case class UndirectedRelationshipIndexContainsScan(idName: String,
                                                   leftNode: String,
                                                   rightNode: String,
                                                   override val typeToken: RelationshipTypeToken,
                                                   property: IndexedProperty,
                                                   valueExpr: Expression,
                                                   argumentIds: Set[String],
                                                   indexOrder: IndexOrder,
                                                   override val indexType: IndexType)
                                                  (implicit idGen: IdGen)
  extends RelationshipIndexLeafPlan(idGen) {

  override def properties: Seq[IndexedProperty] = Seq(property)

  override val availableSymbols: Set[String] = argumentIds ++ Set(idName, leftNode, rightNode)

  override def usedVariables: Set[String] = valueExpr.dependencies.map(_.name)

  override def withoutArgumentIds(argsToExclude: Set[String]): UndirectedRelationshipIndexContainsScan = copy(argumentIds = argumentIds -- argsToExclude)(SameId(this.id))

  override def addArgumentIds(argsToAdd: Set[String]): LogicalLeafPlan =
    copy(argumentIds = argumentIds ++ argsToAdd)(SameId(this.id))

  override def copyWithoutGettingValues: UndirectedRelationshipIndexContainsScan =
    copy(property = property.copy(getValueFromIndex = DoNotGetValue))(SameId(this.id))

  override def withMappedProperties(f: IndexedProperty => IndexedProperty): RelationshipIndexLeafPlan =
    copy(property = f(property))(SameId(this.id))
}