| 1 | /*
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| 2 | * Licensed under the Apache License, Version 2.0 (the "License");
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| 3 | * you may not use this file except in compliance with the License.
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| 4 | * You may obtain a copy of the License at
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| 5 | *
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| 6 | * http://www.apache.org/licenses/LICENSE-2.0
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| 7 | *
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| 8 | * Unless required by applicable law or agreed to in writing, software
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| 9 | * distributed under the License is distributed on an "AS IS" BASIS,
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| 10 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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| 11 | * See the License for the specific language governing permissions and
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| 12 | * limitations under the License.
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| 13 | */
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| 14 |
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| 15 | ;
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| 16 |
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| 17 | const ClassDeclaration = require('./classdeclaration');
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| 18 |
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| 19 | /**
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| 20 | * AssetDeclaration defines the schema (aka model or class) for
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| 21 | * an Asset. It extends ClassDeclaration which manages a set of
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| 22 | * fields, a super-type and the specification of an
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| 23 | * identifying field.
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| 24 | *
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| 25 | * @extends ClassDeclaration
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| 26 | * @see See {@link ClassDeclaration}
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| 27 | * @class
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| 28 | * @memberof module:concerto-core
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| 29 | */
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| 30 | class AssetDeclaration extends ClassDeclaration {
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| 31 |
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| 32 | /**
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| 33 | * Create an AssetDeclaration.
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| 34 | * @param {ModelFile} modelFile the ModelFile for this class
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| 35 | * @param {Object} ast - The AST created by the parser
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| 36 | * @throws {IllegalModelException}
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| 37 | */
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| 38 | constructor(modelFile, ast) {
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| 39 | super(modelFile, ast);
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| 40 | this._isAssetDeclaration = true;
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| 41 | }
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| 42 |
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| 43 | /**
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| 44 | * Returns true if this class can be pointed to by a relationship
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| 45 | *
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| 46 | * @return {boolean} true if the class may be pointed to by a relationship
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| 47 | */
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| 48 | isRelationshipTarget() {
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| 49 | return true;
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| 50 | }
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| 51 |
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| 52 | /**
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| 53 | * Returns the base system type for Assets from the system namespace
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| 54 | *
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| 55 | * @return {string} the short name of the base system type
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| 56 | */
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| 57 | getSystemType() {
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| 58 | let systemType = this.modelFile.getModelManager().getSystemModelTable().get('Asset');
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| 59 | return systemType !== undefined ? systemType : null;
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| 60 | }
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| 61 |
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| 62 | /**
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| 63 | * Alternative instanceof that is reliable across different module instances
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| 64 | * @see https://github.com/hyperledger/composer-concerto/issues/47
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| 65 | *
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| 66 | * @param {object} object - The object to test against
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| 67 | * @returns {boolean} - True, if the object is an instance of a AssetDeclaration
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| 68 | */
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| 69 | static [Symbol.hasInstance](object){
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| 70 | return typeof object !== 'undefined' && object !== null && Boolean(object._isAssetDeclaration);
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| 71 | }
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| 72 | }
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| 73 |
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| 74 | module.exports = AssetDeclaration;
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