@neo4j/cypher-builder
Version:
A programmatic API for building Cypher queries for Neo4j
62 lines (61 loc) • 1.8 kB
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.NamedParam = exports.Param = void 0;
const Variable_1 = require("./Variable");
/** Represents a parameter that will be passed as a separate object
* @group Variables
*/
class Param extends Variable_1.Variable {
constructor(value) {
super();
this.prefix = "param";
this.value = value;
}
/** Defines if the Param has a value that needs to be returned by the builder */
get hasValue() {
return this.value !== undefined;
}
getCypher(env) {
if (this.isNull) {
return "NULL";
}
return `$${env.getReferenceId(this)}`;
}
get isNull() {
return this.value === null;
}
}
exports.Param = Param;
/** Represents a parameter with a given name
* @group Variables
*/
class NamedParam extends Param {
constructor(name, value) {
super(value);
this.id = name;
}
/** @internal */
getCypher(env) {
env.addNamedParamReference(this.id, this);
return super.getCypher(env);
}
}
exports.NamedParam = NamedParam;