hedera-web/js/sql/list.js

72 lines
1.2 KiB
JavaScript

var SqlObject = require('./object');
/**
* List of Sql.Object
*/
module.exports = new Class({
Extends: SqlObject
,objects: []
,add: function(object) {
this.objects.push(object.ref());
object.on('changed', this._onObjectChange, this);
this._onObjectChange();
}
,get: function(i) {
return objects[i];
}
,getArray: function() {
return this.objects;
}
,remove: function(i) {
this._unrefObject(this.objects.splice(i, 1));
this._onObjectChange();
}
,_onObjectChange: function() {
this.emit('changed');
}
,isReady: function() {
var o = this.objects;
if (o.length == 0)
return false;
for (var i = 0; i < o.length; i++)
if (!o[i].isReady())
return false;
return true;
}
,findHolders() {
let ids = [];
for (const object of this.objects){
holders = object.findHolders();
if (holders) ids = ids.concat(holders);
}
return ids;
}
,_unrefObject: function(object) {
object.disconnect('changed', this._onObjectChange, this);
object.unref();
}
,_destroy: function() {
for (var i = 0; i < this.objects.length; i++)
this._unrefObject(this.objects[i]);
SqlObject.prototype._destroy.call(this);
}
});