var sToken = "", oControl = this;      this._objects.oModel.refreshSecurityToken(function(e, o) {        sToken = oControl._objects.oModel.getSecurityToken();      }, function(e) {        oControl._showErrorMessage($(e.response.body).find("message").first().text(), "") ;      }, false);      return sToken;

onInit : function() {

this._properties = {

objectKey : "",

objectType : "",

documentPart: "",

documentVersion: "",

documentNumber: "",

documentType: "",

mode : "",

visibleEdit: false,

visibleDelete: false

};

this._objects = {

oModel : undefined

};

this._objects.oModel = new sap.ui.model.odata.ODataModel("/sap/opu/odata/sap/CV_ATTACHMENT_SRV", true);

this._objects.oResModel = new sap.ui.model.resource.ResourceModel({ bundleUrl : jQuery.sap.getModulePath("sap.se.mi.plm.lib.attachmentservice.attachment") + "/i18n/i18n.properties" });

},