AbstractServiceにgetCountByConditionを作ってみる(汗

どのエンティティでも件数を数えるのは要件としてあるので，getCountByConditionを作ってみました．

追記：
小林さんご指摘のとおり

hogeService.select().where("prefId = ?", 1).getCount();

で件数取得できました... or2 ﾍﾀｺｲﾀ...
JdbcManagerってよくできてるねーｗｗｗ

public abstract class AbstractService<E> extends S2AbstractService<E> {

	public JdbcManagerImplementor jdbcManagerImplementor;

	public long getCountByCondition(String criteria, Object... params) {
		EntityMeta entityMeta = getEntityMeta();
		String tableName = entityMeta.getTableMeta().getName();
		StringBuilder physicalCriteria = new StringBuilder();
		StringTokenizer st = new StringTokenizer(criteria);
		while (st.hasMoreTokens()) {
			String token = st.nextToken();
			if (entityMeta.hasPropertyMeta(token)) {
				PropertyMeta pm = entityMeta.getPropertyMeta(token);
				newCriteria.append(pm.getColumnMeta().getName());
			} else {
				newCriteria.append(" ").append(token);
			}
		}
		String sql = String.format("SELECT COUNT(*) AS COUNT FROM %s WHERE %s",
				tableName, physicalCriteria.toString());
		BeanMap bm = jdbcManager.selectBySql(BeanMap.class, sql, params)
				.getSingleResult();
		long count = 0L;
		Class<?> clazz = bm.get("count").getClass();
		if (Long.class.equals(clazz)) {
			count = (Long) bm.get("count");
		}
		if (BigDecimal.class.equals(clazz)) {
			count = ((BigDecimal) bm.get("count")).longValue();
		}
		return count;
	}
	public long getCountByCondition(SimpleWhere simpleWhere) {
		long count = getCountByCondition(simpleWhere.getCriteria(), simpleWhere
				.getParams());
		return count;
	}

	private EntityMeta getEntityMeta() {
		EntityMetaFactory entityMetaFactory = jdbcManagerImplementor
				.getEntityMetaFactory();
		EntityMeta entityMeta = entityMetaFactory.getEntityMeta(entityClass);
		return entityMeta;
	}
	
}