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| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 | 1x 1x 11x 1x 11x 17x 20x 11x 25x 11x 1x 14x 10x 3x 1x | "use strict";
const _ = require("lodash");
const AssociationEnd = require("./AssociationEnd");
/**
* Envelops an association.
*
* https://docs.microsoft.com/en-us/openspecs/windows_protocols/mc-csdl/77d7ccbb-bda8-444a-a160-f4581172322f
* (not present in OASIS-CSDL)
*
* @class Association
*/
class Association {
/**
* Creates an instance of Association.
* @param {Object} rawMetadata raw metadata object for the association
* @memberof Association
*/
constructor(rawMetadata) {
Object.defineProperty(this, "raw", {
get: () => rawMetadata,
});
Object.defineProperty(this, "name", {
get: () => rawMetadata.$.Name,
});
let ends = _.get(rawMetadata, "End", []).map((p) => new AssociationEnd(p));
Object.defineProperty(this, "ends", {
get: () => ends,
});
if (ends.length !== 2) {
throw new Error(
`Association MUST have exactly two End elements defined, but it has ${ends.length}.`
);
}
}
/**
* Initializes schema dependent properties. Decoupled from constructor,
* because it needs to resolve schema (type) references.
*
* @param {CsdlSchema} schema to resolve references
* @memberof EntityContainer
*/
initSchemaDependentProperties(schema) {
this.ends.forEach((e) => e.initSchemaDependentProperties(schema));
}
/**
* Resolves model path within this association.
*
* @param {string} [path] model path
* @returns {Object} resolved element
* @memberof ComplexType
*/
resolveModelPath(path) {
return !path || path === this.name ? this : undefined;
}
/**
* Find endpoint of the association
*
* @param {String} role identifer of the role which need to be find
*
* @returns {AssociationEnd} found endpoint of the association
*
* @memberof Association
*/
findEnd(role) {
return _.find(this.ends, (associationEnd) => associationEnd.role === role);
}
}
module.exports = Association;
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