org.neo4j.cypher.internal.expressions.SemanticDirection.scala Maven / Gradle / Ivy
/*
* Copyright (c) "Neo4j"
* Neo4j Sweden AB [https://neo4j.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 org.neo4j.cypher.internal.expressions
sealed trait SemanticDirection {
def reversed: SemanticDirection
def leftArrowCanonicalString: String
def rightArrowCanonicalString: String
}
case object SemanticDirection {
case object OUTGOING extends SemanticDirection {
override def reversed: SemanticDirection = INCOMING
override def leftArrowCanonicalString: String = "-"
override def rightArrowCanonicalString: String = "->"
}
case object INCOMING extends SemanticDirection {
override def reversed: SemanticDirection = OUTGOING
override def leftArrowCanonicalString: String = "<-"
override def rightArrowCanonicalString: String = "-"
}
case object BOTH extends SemanticDirection {
override def reversed: SemanticDirection = BOTH
override def leftArrowCanonicalString: String = "-"
override def rightArrowCanonicalString: String = "-"
}
}