hsqldb.jdbc中的createArrayOf字符串返回AbstractMethodError

Question

I am writing test cases for my java program that runs with an Oracle database. My code is :

st = conn.prepareStatement( MY_QUERY, ResultSet.TYPE_SCROLL_INSENSITIVE,
                ResultSet.CONCUR_READ_ONLY);

            Array array  = conn.createArrayOf("VARCHAR", ids);
            st.setArray(1, array);
            rs = st.executeQuery();

where the query is

QUERY = "SELECT * from TABLE where id in ?"

We are using the hsqldb database for our testing. However, running the above code in tests gives

java.lang.AbstractMethodError: org.hsqldb.jdbc.jdbcConnection.createArrayOf(Ljava/lang/String;[Ljava/lang/Object;)Ljava/sql/Array;

on the createArrayOf line.

I haven't been able to find a solution to this problem. Would appreciate any help given. Thanks

Answer 1

In the official HSQLDB JavaDoc (Version 2.x) of the class JDBCConnection (which implements java.sql.Connection ) the createArrayOf method is availble and documented:

createArrayOf

public Array createArrayOf(String typeName, Object[] elements) throws SQLException

This method is supported since HSQLDB version 2.x. Therefore, you should update your application to use the latest HSQLDB driver which can be downloaded here .

According to the changelist , you should use at least version 2.2.1 of HSQLDB driver as the dev team " fixed type limitations of Connection#createArrayOf " method with this release.

Answer 2

HSQLDB中的SQL查询语法不同：

SELECT * from TABLE WHERE id IN(UNNEST(?))