@neo4j/cypher-builder
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A programmatic API for building Cypher queries for Neo4j
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JavaScript
;
/*
* Copyright (c) "Neo4j"
* Neo4j Sweden AB [http://neo4j.com]
*
* This file is part of Neo4j.
*
* 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.
*/
Object.defineProperty(exports, "__esModule", { value: true });
exports.QuantifiedPattern = void 0;
/** Represents a quantified path pattern as a {@link Pattern} with at least one relationship and a quantifier of the form `{1,2}`
* @see {@link https://neo4j.com/docs/cypher-manual/current/patterns/variable-length-patterns/#quantified-path-patterns | Cypher Documentation}
* @group Patterns
*/
class QuantifiedPattern {
constructor(pattern, quantifier) {
this.pattern = pattern;
this.quantifier = quantifier;
}
/**
* @internal
*/
getCypher(env) {
const patternStr = this.pattern.getCypher(env);
const quantifierStr = this.generateQuantifierStr();
return `(${patternStr})${quantifierStr}`;
}
generateQuantifierStr() {
if (typeof this.quantifier === "number") {
return `{${this.quantifier}}`;
}
else if (typeof this.quantifier === "string") {
return this.quantifier;
}
else {
return `{${this.quantifier.min ?? ""},${this.quantifier.max ?? ""}}`;
}
}
}
exports.QuantifiedPattern = QuantifiedPattern;