function _getDataTypeName() {
		const oDataType = this.getContentFactory().getDateOriginalType() || this.getContentFactory().getUnitOriginalType() || this.getContentFactory().getDataType(); // use original data type
		if (oDataType && typeof oDataType === "object") {
			return oDataType.getMetadata().getName();
		} else if (this.bDelegateInitialized) {
			return this.getTypeMap().getDataTypeClassName(this.getDataType());
		} else {
			return this.getDataType();
		}
	}
Initializes internal data-types and dependent objects.
@protected