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const _ = require("lodash");
const AnnotationTarget = require("../annotations/AnnotationTarget");
/**
* Envelops a (structural) property.
*
* http://docs.oasis-open.org/odata/odata-csdl-xml/v4.01/cs01/odata-csdl-xml-v4.01-cs01.html#sec_StructuralProperty
*
* Geometry or geography property not supported (SRID attribute)
*
* @class Property
* @extends {AnnotationTarget}
*/
class Property extends AnnotationTarget {
/**
* Creates an instance of Property.
* @param {Object} rawMetadata raw metadata object for property
* @memberof Property
*/
constructor(rawMetadata) {
super(rawMetadata);
Object.defineProperty(this, "nullable", {
get: () => rawMetadata.$.Nullable !== "false",
});
// in v 4.0 it is posible to use 'max' symbolic value, it is deprecated in 4.01. Not sure if sap implements 4.0 or 4.01
let maxLength = _.has(rawMetadata.$, "MaxLength")
? Number(rawMetadata.$.MaxLength)
: undefined;
Object.defineProperty(this, "maxLength", {
get: () => maxLength,
});
let precision = _.has(rawMetadata.$, "Precision")
? Number(rawMetadata.$.Precision)
: undefined;
Object.defineProperty(this, "precision", {
get: () => precision,
});
let scale = _.has(rawMetadata.$, "Scale")
? Number(rawMetadata.$.Scale)
: undefined;
Object.defineProperty(this, "scale", {
get: () => scale,
});
Object.defineProperty(this, "readOnly", {
get: () => rawMetadata.$.ReadOnly === "true",
});
Object.defineProperty(this, "unicode", {
get: () => rawMetadata.$.Unicode !== "false",
});
}
/**
* Initializes schema dependent properties. Decoupled from constructor,
* because it needs to resolve schema (type) references.
*
* @param {CsdlSchema} schema to resolve references
* @memberof AssociationEnd
*/
initSchemaDependentProperties(schema) {
Object.defineProperty(this, "type", {
get: () => schema.getType(this.raw.$.Type),
});
if (_.has(this.raw.$, "DefaultValue")) {
// Values must be represented as defined in OData ABNF Construction Rules, e.g. binary in base64url encoding
// Edm type implementation doesn't offer such conversion, so leaving as plain string for now
// also not checking now that type is primitive or enumeration
Object.defineProperty(this, "defaultValue", {
get: () => this.raw.$.DefaultValue,
});
}
}
/**
* Gets legacy api object. (XML casing, maybe some other changes.)
*
* @returns {Object} legacy api object
* @memberof Property
*/
getLegacyApiObject() {
return Object.assign(super.getLegacyApiObject(), {
MaxLength: this.maxLength,
Nullable: this.nullable,
ReadOnly: this.readOnly,
Type: this.type.namespaceQualifiedName,
});
}
}
module.exports = Property;
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