JDO-嵌入式类中的HashMap
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您是否可以在App Engine的嵌入式类中存储HashMap？
我有以下课程：
@Persistent(serialized = \"true\")
@Embedded
private Stats stats;
@PersistenceCapable
@EmbeddedOnly
public static class Stats implements Serializable {
private static final long serialVersionUID = 1L;
@Persistent(serialized = \"true\", defaultFetchGroup=\"true\")
private Map<String, Integer> requests;
public Stats() {
requests = new HashMap<String, Integer>();
}
}
没有找到相关结果
已邀请:
1 个回复
苏髓骗撩
@SuppressWarnings(\"serial \") @PersistenceCapable(identityType=IdentityType.APPLICATION, detachable=\"true\") @FetchGroup(name=\"QueryAggregationJobJDO\", members={ @Persistent(name=\"appName\", recursionDepth=-1), etc.... public class QueryAggregationJobJDO extends AggregationJobJDO implements SystemObject { @Persistent(serialized=\"true\") // this is string of app names and a count for each name found public Map< String, Long > appName = new HashMap<String, Long>();@Override public boolean open() { DataAreaManager dataAreaManager = new DataAreaManager(); dataAreaManager.setDataArea(VERSION_DATA_AREA); if ((pm == null) || (pm.isClosed())) { pm = PMF.get(type).getPersistenceManager(); pm.getFetchPlan().addGroup(\"TouchActiveUserJDO\"); pm.getFetchPlan().addGroup(\"UserRoleJDO\"); pm.getFetchPlan().addGroup(\"QueryAggregationJobJDO\");