Iterator(JFIS)

Iterator（迭代器）、Set

public Set getModelsByPowers(Set powers) throws SQLException {

Set models = new HashSet();

Iterator powersIterator = powers.iterator();

ModelDAO modelDAO = new ModelDAO();

//添加三级模块

while (powersIterator.hasNext()) {

PowerBean powerBean = (PowerBean) powersIterator.next();

ModelBean modelBean = modelDAO.model_bean(powerBean.getModelId());

String parentModeId = modelBean.getParentModelId();

ModelBean mb = new ModelBean();

models.add(modelBean);

//添加一、二级模块

while (!(parentModeId.equals("-1"))) {

ModelBean modelbean = modelDAO.model_bean(parentModeId);

parentModeId = modelbean.getParentModelId();

models.add(modelbean);

}

}

return models;

}