Java RowSetWarning类代码示例

import javax.sql.rowset.RowSetWarning; //导入依赖的package包/类
/**
 * readObject is called to restore the state of the {@code SerialJavaObject}
 * from a stream.
 */
private void readObject(ObjectInputStream s)
        throws IOException, ClassNotFoundException {

    ObjectInputStream.GetField fields1 = s.readFields();
    @SuppressWarnings("unchecked")
    Vector<RowSetWarning> tmp = (Vector<RowSetWarning>)fields1.get("chain", null);
    if (tmp != null)
        chain = new Vector<>(tmp);

    obj = fields1.get("obj", null);
    if (obj != null) {
        fields = obj.getClass().getFields();
        if(hasStaticFields(fields))
            throw new IOException("Located static fields in " +
            "object instance. Cannot serialize");
    } else {
        throw new IOException("Object cannot be null!");
    }

}
 

import javax.sql.rowset.RowSetWarning; //导入依赖的package包/类
@Test
public void test07() {
    RowSetWarning ex = new RowSetWarning("Exception 1");
    ex.initCause(t1);
    RowSetWarning ex1 = new RowSetWarning("Exception 2");
    RowSetWarning ex2 = new RowSetWarning("Exception 3");
    ex2.initCause(t2);
    ex.setNextException(ex1);
    ex.setNextException(ex2);
    int num = 0;
    SQLException sqe = ex;
    while (sqe != null) {
        assertTrue(msgs[num++].equals(sqe.getMessage()));
        Throwable c = sqe.getCause();
        while (c != null) {
            assertTrue(msgs[num++].equals(c.getMessage()));
            c = c.getCause();
        }
        sqe = sqe.getNextException();
    }
}
 

import javax.sql.rowset.RowSetWarning; //导入依赖的package包/类
/**
 * Validate that the ordering of the returned RowSetWarning is correct using
 * traditional while loop
 */
@Test
public void test09() {
    RowSetWarning ex = new RowSetWarning("Warning 1");
    ex.initCause(t1);
    RowSetWarning ex1 = new RowSetWarning("Warning 2");
    RowSetWarning ex2 = new RowSetWarning("Warning 3");
    ex2.initCause(t2);
    ex.setNextWarning(ex1);
    ex.setNextWarning(ex2);
    int num = 0;
    RowSetWarning sqe = ex;
    while (sqe != null) {
        assertTrue(warnings[num++].equals(sqe.getMessage()));
        Throwable c = sqe.getCause();
        while (c != null) {
            assertTrue(msgs[num++].equals(c.getMessage()));
            c = c.getCause();
        }
        sqe = sqe.getNextWarning();
    }
}
 

import javax.sql.rowset.RowSetWarning; //导入依赖的package包/类
@Test
public void test11() throws Exception {
    RowSetWarning ex = new RowSetWarning("Warning 1");
    ex.initCause(t1);
    RowSetWarning ex1 = new RowSetWarning("Warning 2");
    RowSetWarning ex2 = new RowSetWarning("Warning 3");
    ex2.initCause(t2);
    ex.setNextWarning(ex1);
    ex.setNextWarning(ex2);
    int num = 0;
    RowSetWarning sqe = createSerializedException(ex);
    while (sqe != null) {
        assertTrue(warnings[num++].equals(sqe.getMessage()));
        Throwable c = sqe.getCause();
        while (c != null) {
            assertTrue(msgs[num++].equals(c.getMessage()));
            c = c.getCause();
        }
        sqe = sqe.getNextWarning();
    }
}
 

import javax.sql.rowset.RowSetWarning; //导入依赖的package包/类
public void testGetRowSetWarnings() throws Exception {
    JdbcRowSet jrs = newJdbcRowSet();
    jrs.setCommand("SELECT * FROM USER_INFO");
    jrs.setUrl(DERBY_URL);
    jrs.execute();

    /*
     * TODO not sure when and how will cause RowSetWarning
     */
    assertNull(jrs.getRowSetWarnings());

    jrs.close();

    jrs = newJdbcRowSet();
    RowSetWarning warning = jrs.getRowSetWarnings();
    super.assertNull(warning);

    // TODO Try to produce warnings.

    jrs.close();
    // Checks for Exception after closing jrs.

    assertNull(rs.getWarnings());
    assertNull(jrs.getRowSetWarnings());
}
 

import javax.sql.rowset.RowSetWarning; //导入依赖的package包/类
/**
 * Constructor for <code>SerialJavaObject</code> helper class.
 * <p>
 *
 * @param obj the Java <code>Object</code> to be serialized
 * @throws SerialException if the object is found not to be serializable
 */
public SerialJavaObject(Object obj) throws SerialException {

    // if any static fields are found, an exception
    // should be thrown


    // get Class. Object instance should always be available
    Class<?> c = obj.getClass();

    // determine if object implements Serializable i/f
    if (!(obj instanceof java.io.Serializable)) {
        setWarning(new RowSetWarning("Warning, the object passed to the constructor does not implement Serializable"));
    }

    // can only determine public fields (obviously). If
    // any of these are static, this should invalidate
    // the action of attempting to persist these fields
    // in a serialized form
    fields = c.getFields();

    if (hasStaticFields(fields)) {
        throw new SerialException("Located static fields in " +
            "object instance. Cannot serialize");
    }

    this.obj = obj;
}
 

import javax.sql.rowset.RowSetWarning; //导入依赖的package包/类
/**
 * Registers the given warning.
 */
private void setWarning(RowSetWarning e) {
    if (chain == null) {
        chain = new Vector<>();
    }
    chain.add(e);
}
 

import javax.sql.rowset.RowSetWarning; //导入依赖的package包/类
@Test
public void test01() {
    RowSetWarning ex = new RowSetWarning();
    assertTrue(ex.getMessage() == null
            && ex.getSQLState() == null
            && ex.getCause() == null
            && ex.getErrorCode() == 0);
}
 

import javax.sql.rowset.RowSetWarning; //导入依赖的package包/类
@Test
public void test02() {
    RowSetWarning ex = new RowSetWarning(reason);
    assertTrue(ex.getMessage().equals(reason)
            && ex.getSQLState() == null
            && ex.getCause() == null
            && ex.getErrorCode() == 0);
}
 

import javax.sql.rowset.RowSetWarning; //导入依赖的package包/类
@Test
public void test03() {

    RowSetWarning ex = new RowSetWarning(reason, state);
    assertTrue(ex.getMessage().equals(reason)
            && ex.getSQLState().equals(state)
            && ex.getCause() == null
            && ex.getErrorCode() == 0);
}
 

import javax.sql.rowset.RowSetWarning; //导入依赖的package包/类
@Test
public void test04() {
    RowSetWarning ex = new RowSetWarning(reason, state, errorCode);
    assertTrue(ex.getMessage().equals(reason)
            && ex.getSQLState().equals(state)
            && ex.getCause() == null
            && ex.getErrorCode() == errorCode);
}
 

import javax.sql.rowset.RowSetWarning; //导入依赖的package包/类
@Test
public void test05() throws Exception {
    RowSetWarning e = new RowSetWarning(reason, state, errorCode);
    e.initCause(t);
    RowSetWarning ex1 = createSerializedException(e);
    assertTrue(reason.equals(ex1.getMessage())
            && ex1.getSQLState().equals(state)
            && cause.equals(ex1.getCause().toString())
            && ex1.getErrorCode() == errorCode);
}
 

import javax.sql.rowset.RowSetWarning; //导入依赖的package包/类
@Test
public void test06() {
    RowSetWarning ex = new RowSetWarning("Exception 1");
    ex.initCause(t1);
    RowSetWarning ex1 = new RowSetWarning("Exception 2");
    RowSetWarning ex2 = new RowSetWarning("Exception 3");
    ex2.initCause(t2);
    ex.setNextException(ex1);
    ex.setNextException(ex2);
    int num = 0;
    for (Throwable e : ex) {
        assertTrue(msgs[num++].equals(e.getMessage()));
    }
}