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  3. org.springframework.dao.IncorrectResultSizeDataAccessException

Java 类org.springframework.dao.IncorrectResultSizeDataAccessException 实例源码

项目：ARCLib    文件：LdapFullDnSearch.java    
/**
 * Return the DirContextOperations containing the user's information
 *
 * @param dn full DN of the user to search for.
 *
 * @return An DirContextOperations object containing the details of the located user's
 * directory entry
 *
 * @throws UsernameNotFoundException if no matching entry is found.
 */
@Override
public DirContextOperations searchForUser(String dn) {
    log.debug("Searching for dn '{}'.", dn);

    SpringSecurityLdapTemplate template = new SpringSecurityLdapTemplate(getContextSource());

    template.setSearchControls(getSearchControls());

    try {
        return template.retrieveEntry(dn, null);
    } catch (IncorrectResultSizeDataAccessException ex) {
        if (ex.getActualSize() == 0) {
            throw new UsernameNotFoundException("User " + dn + " not found in directory.");
        }
        // Search should never return multiple results if properly configured, so just rethrow
        throw ex;
    }
}
项目：spring-data-snowdrop    文件：OpsDefaultBase.java    
@Test
public void testOptional() {
    Optional<SimpleEntity> optional = repository.findByNumberBetweenOrderByHero(9, 11);
    Assert.assertTrue(optional.isPresent());
    Assert.assertEquals(new Long(4), optional.get().getId());

    optional = repository.findByNumberBetweenOrderByHero(1234, 2000);
    Assert.assertFalse(optional.isPresent());

    try {
        repository.findByNumberBetweenOrderByHero(-5, 15);
        Assert.fail();
    } catch (Exception e) {
        Assert.assertEquals(IncorrectResultSizeDataAccessException.class, e.getClass());
    }
}
项目：Equella    文件：SqlTaxonomyDataSource.java    
@Override
public TermResult getTerm(String fullTermPath)
{
    List<TermResult> trs = executeListQuery(queryGetTerm, Collections.singletonMap("term", fullTermPath));
    if( Check.isEmpty(trs) )
    {
        return null;
    }
    else if( trs.size() == 1 )
    {
        return trs.get(0);
    }
    else
    {
        // Sanity check - ensure only a single result
        throw new IncorrectResultSizeDataAccessException(1);
    }
}
项目：Equella    文件：SqlTaxonomyDataSource.java    
private Object executeSingleResultQuery(String query, Map<?, ?> params)
{
    return jdbcTemplate.query(query, params, new ResultSetExtractor()
    {
        @Override
        public Object extractData(ResultSet rs) throws SQLException, DataAccessException
        {
            Object data = null;
            if( rs.next() )
            {
                data = rs.getObject(1);

                // Sanity check - ensure only a single result
                if( rs.next() )
                {
                    throw new IncorrectResultSizeDataAccessException(1);
                }
            }
            return data;
        }
    });
}
项目：spring4-understanding    文件：DataAccessUtilsTests.java    
@Test
public void withEquivalentIntegerInstanceTwice() {
    Collection<Integer> col = new ArrayList<Integer>(2);
    col.add(new Integer(5));
    col.add(new Integer(5));

    try {
        DataAccessUtils.uniqueResult(col);
        fail("Should have thrown IncorrectResultSizeDataAccessException");
    }
    catch (IncorrectResultSizeDataAccessException ex) {
        // expected
        assertEquals(1, ex.getExpectedSize());
        assertEquals(2, ex.getActualSize());
    }
}
项目：parking-api    文件：ActiveDirectoryAliasLdapAuthenticationProvider.java    
private DirContextOperations searchForUser(DirContext context, String username)
        throws NamingException {
    SearchControls searchControls = new SearchControls();
    searchControls.setSearchScope(SearchControls.SUBTREE_SCOPE);

    String bindPrincipal = createBindPrincipalDomainAlias(username);
    String searchRoot = rootDn != null ? rootDn : searchRootFromPrincipal(bindPrincipal);

    try {
        return SpringSecurityLdapTemplate.searchForSingleEntryInternal(context,
                searchControls, searchRoot, searchFilter,
                new Object[] { bindPrincipal });
    }
    catch (IncorrectResultSizeDataAccessException incorrectResults) {
        // Search should never return multiple results if properly configured - just
        // rethrow
        if (incorrectResults.getActualSize() != 0) {
            throw incorrectResults;
        }
        // If we found no results, then the username/password did not match
        UsernameNotFoundException userNameNotFoundException = new UsernameNotFoundException(
                "User " + username + " not found in directory.", incorrectResults);
        throw badCredentials(userNameNotFoundException);
    }
}
项目：elucidate-server    文件：AnnotationCollectionStoreRepositoryJDBCImplTest.java    
@Test(expected = IncorrectResultSizeDataAccessException.class)
@SuppressWarnings("serial")
public void testGetAnnotationCollectionByIdTwo() {

    W3CAnnotationCollection w3cAnnotationCollection = generateRandomW3CAnnotationCollection();

    String collectionId = w3cAnnotationCollection.getCollectionId();
    Object[] params = {collectionId, false};
    int[] sqlTypes = {Types.VARCHAR, Types.BOOLEAN};

    when(jdbcTemplate.query(anyString(), aryEq(params), aryEq(sqlTypes), (W3CAnnotationCollectionRowMapper) any())).thenReturn(new ArrayList<W3CAnnotationCollection>() {
        {
            add(w3cAnnotationCollection);
            add(w3cAnnotationCollection);
        }
    });
    annotationCollectionStoreRepository.getAnnotationCollectionById(collectionId);
}
项目：elucidate-server    文件：AnnotationStoreRepositoryJDBCImplTest.java    
@SuppressWarnings("serial")
@Test(expected = IncorrectResultSizeDataAccessException.class)
public void testGetAnnotationByCollectionIdAndAnnotationIdTwo() {

    W3CAnnotation w3cAnnotation = generateRandomW3CAnnotation();

    String collectionId = generateRandomId();
    String annotationId = generateRandomId();
    Object[] params = {collectionId, annotationId, false};
    int[] sqlTypes = {Types.VARCHAR, Types.VARCHAR, Types.BOOLEAN};

    when(jdbcTemplate.query(anyString(), aryEq(params), aryEq(sqlTypes), (W3CAnnotationRowMapper) any())).thenReturn(new ArrayList<W3CAnnotation>() {
        {
            add(w3cAnnotation);
            add(w3cAnnotation);
        }
    });
    annotationStoreRepository.getAnnotationByCollectionIdAndAnnotationId(collectionId, annotationId);
}
项目：kc-rice    文件：KRADLegacyDataAdapterImpl.java    
@Override
public <T> T findObjectBySearch(Class<T> type, Map<String, String> formProps) {
    // This is the strictly Lookup-compatible way of constructing the criteria
    // from a map of properties, which performs some minor logic such as only including
    // non-blank and "writable" properties, as well as minor type coercions of string values
    QueryByCriteria.Builder queryByCriteria = lookupCriteriaGenerator.createObjectCriteriaFromMap(type, formProps);
    List<T> results = dataObjectService.findMatching(type, queryByCriteria.build()).getResults();
    if (results.isEmpty()) {
        return null;
    }
    if (results.size() != 1) {
        // this behavior is different from the legacy OJB behavior in that it throws an exception if more than
        // one result from such a single object query
        throw new IncorrectResultSizeDataAccessException("Incorrect number of results returned when finding object",
                1, results.size());
    }
    return results.get(0);
}
项目：kc-rice    文件：ProviderBasedDataObjectServiceTest.java    
@Test(expected = IncorrectResultSizeDataAccessException.class)
public void testFindUnique_TooManyResults() {
    QueryByCriteria criteria = QueryByCriteria.Builder.create().build();

    // create results that contains multiple objects
    Object result1 = new Object();
    Object result2 = new Object();
    GenericQueryResults.Builder<Object> resultsBuilder =
            GenericQueryResults.Builder.<Object>create();
    resultsBuilder.setResults(Lists.newArrayList(result1, result2));
    QueryResults<Object> results = resultsBuilder.build();
    when(mockProvider.findMatching(Object.class, criteria)).thenReturn(results);

    // now when we invoke this, we should get the data access exception
    // (see the "expected" exception on the @Test annotation)
    service.findUnique(Object.class, criteria);
}
项目：eMonocot    文件：UserServiceImpl.java    
/**
 *
 * @param username Set the username
 * @param newPassword Set the new password
 */
@Transactional(readOnly = false)
public final void changePasswordForUser(final String username,
        final String newPassword) {
    Assert.hasText(username);
    Assert.hasText(newPassword);

    try {
        User user = dao.find(username);
        if (user == null) {
            throw new UsernameNotFoundException(username);
        }

        Object salt = this.saltSource.getSalt(user);

        String password = passwordEncoder.encodePassword(newPassword, salt);
        ((User) user).setPassword(password);

        dao.update((User) user);
        userCache.removeUserFromCache(user.getUsername());
    } catch (NonUniqueResultException nure) {
        throw new IncorrectResultSizeDataAccessException(
                "More than one user found with name '" + username + "'", 1);
    }
}
项目：eMonocot    文件：UserServiceImpl.java    
/**
 * DO NOT CALL THIS METHOD IN LONG RUNNING SESSIONS OR CONVERSATIONS A
 * THROWN UsernameNotFoundException WILL RENDER THE CONVERSATION UNUSABLE.
 *
 * @param username
 *            Set the username
 * @return the userdetails of the user
 */
@Transactional(readOnly = true)
public final UserDetails loadUserByUsername(final String username) {
 try {
     Assert.hasText(username);
 } catch (IllegalArgumentException iae) {
     throw new UsernameNotFoundException(username, iae);
 }
 try {
     User user = dao.load(username);
     userCache.putUserInCache(user);
     return user;
 } catch (ObjectRetrievalFailureException orfe) {
     throw new UsernameNotFoundException(username, orfe);
 } catch (NonUniqueResultException nure) {
     throw new IncorrectResultSizeDataAccessException(
             "More than one user found with name '" + username + "'", 1);
 }
}
项目：tddl5    文件：CobarAdapter.java    
@Override
public Pair<Long, Long> getCurrentTimeMillis() {
    return (Pair<Long, Long>) getJdbcTemplate().execute(new StatementCallback() {

        @Override
        public Object doInStatement(Statement stmt) throws SQLException, DataAccessException {
            ResultSet rs = null;
            try {
                long time1 = System.currentTimeMillis();
                rs = stmt.executeQuery("show @@status.time");
                long time2 = System.currentTimeMillis();
                if (rs.next()) {
                    return new Pair<Long, Long>(time1 + (time2 - time1) / 2, rs.getLong(1));
                } else {
                    throw new IncorrectResultSizeDataAccessException(1, 0);
                }
            } finally {
                if (rs != null) {
                    rs.close();
                }
            }
        }
    });
}
项目：class-guard    文件：DataAccessUtils.java    
/**
 * Return a unique result object from the given Collection.
 * Throws an exception if 0 or more than 1 result objects found,
 * of if the unique result object is not convertable to the
 * specified required type.
 * @param results the result Collection (can be {@code null})
 * @return the unique result object
 * @throws IncorrectResultSizeDataAccessException if more than one
 * result object has been found in the given Collection
 * @throws EmptyResultDataAccessException if no result object
 * at all has been found in the given Collection
 * @throws TypeMismatchDataAccessException if the unique object does
 * not match the specified required type
 */
@SuppressWarnings("unchecked")
public static <T> T objectResult(Collection<?> results, Class<T> requiredType)
        throws IncorrectResultSizeDataAccessException, TypeMismatchDataAccessException {

    Object result = requiredUniqueResult(results);
    if (requiredType != null && !requiredType.isInstance(result)) {
        if (String.class.equals(requiredType)) {
            result = result.toString();
        }
        else if (Number.class.isAssignableFrom(requiredType) && Number.class.isInstance(result)) {
            try {
                result = NumberUtils.convertNumberToTargetClass(((Number) result), (Class<? extends Number>) requiredType);
            }
            catch (IllegalArgumentException ex) {
                throw new TypeMismatchDataAccessException(ex.getMessage());
            }
        }
        else {
            throw new TypeMismatchDataAccessException(
                    "Result object is of type [" + result.getClass().getName() +
                    "] and could not be converted to required type [" + requiredType.getName() + "]");
        }
    }
    return (T) result;
}
项目：rice    文件：KRADLegacyDataAdapterImpl.java    
@Override
public <T> T findObjectBySearch(Class<T> type, Map<String, String> formProps) {
    // This is the strictly Lookup-compatible way of constructing the criteria
    // from a map of properties, which performs some minor logic such as only including
    // non-blank and "writable" properties, as well as minor type coercions of string values
    QueryByCriteria.Builder queryByCriteria = lookupCriteriaGenerator.createObjectCriteriaFromMap(type, formProps);
    List<T> results = dataObjectService.findMatching(type, queryByCriteria.build()).getResults();
    if (results.isEmpty()) {
        return null;
    }
    if (results.size() != 1) {
        // this behavior is different from the legacy OJB behavior in that it throws an exception if more than
        // one result from such a single object query
        throw new IncorrectResultSizeDataAccessException("Incorrect number of results returned when finding object",
                1, results.size());
    }
    return results.get(0);
}
项目：rice    文件：ProviderBasedDataObjectServiceTest.java    
@Test(expected = IncorrectResultSizeDataAccessException.class)
public void testFindUnique_TooManyResults() {
    QueryByCriteria criteria = QueryByCriteria.Builder.create().build();

    // create results that contains multiple objects
    Object result1 = new Object();
    Object result2 = new Object();
    GenericQueryResults.Builder<Object> resultsBuilder =
            GenericQueryResults.Builder.<Object>create();
    resultsBuilder.setResults(Lists.newArrayList(result1, result2));
    QueryResults<Object> results = resultsBuilder.build();
    when(mockProvider.findMatching(Object.class, criteria)).thenReturn(results);

    // now when we invoke this, we should get the data access exception
    // (see the "expected" exception on the @Test annotation)
    service.findUnique(Object.class, criteria);
}
项目：GisGMP    文件：MemberRepositoryImpl.java    
@Override
public PersistentRememberMeToken getTokenForSeries(String seriesId) {
    try {
        return getJdbcTemplate().queryForObject(sqlSelect, new RowMapper<PersistentRememberMeToken>() {
            public PersistentRememberMeToken mapRow(ResultSet rs, int rowNum) throws SQLException {
                //String username, String series, String tokenValue, Date date
                return new PersistentRememberMeToken(rs.getString(3),
                        rs.getString(1),
                        rs.getString(2),
                        rs.getTimestamp(4));
            }
        }, seriesId);
    } catch (EmptyResultDataAccessException zeroResults) {
        if (logger.isInfoEnabled()) {
            logger.info("Querying token for series '" + seriesId + "' returned no results.", zeroResults);
        }
    } catch (IncorrectResultSizeDataAccessException moreThanOne) {
        logger.error("Querying token for series '" + seriesId + "' returned more than one value. Series" +
                " should be unique");
    } catch (DataAccessException e) {
        logger.error("Failed to load token for series " + seriesId, e);
    }

    return null;
}
项目：cobar    文件：CobarAdapter.java    
@Override
public Pair<Long, Long> getCurrentTimeMillis() {
    return (Pair<Long, Long>) getJdbcTemplate().execute(new StatementCallback() {
        @Override
        public Object doInStatement(Statement stmt) throws SQLException, DataAccessException {
            ResultSet rs = null;
            try {
                long time1 = System.currentTimeMillis();
                rs = stmt.executeQuery("show @@status.time");
                long time2 = System.currentTimeMillis();
                if (rs.next()) {
                    return new Pair<Long, Long>(time1 + (time2 - time1) / 2, rs.getLong(1));
                } else {
                    throw new IncorrectResultSizeDataAccessException(1, 0);
                }
            } finally {
                if (rs != null) {
                    rs.close();
                }
            }
        }
    });
}
项目：spring-config-jdbc    文件：JdbcPlaceholderConfigurer.java    
/**
 * This implementation tries to resolve placeholders first by using a SQL statement,
        * then in the passed-in properties.
 */
@Override
protected String resolvePlaceholder(String placeholder, Properties props) {
               String value = null;
    if ( this.jdbcTemplate != null ) {
        try {
            value = this.jdbcTemplate.queryForObject(
                this.selectStatement,
                new Object[]{placeholder}, String.class);
        } catch (IncorrectResultSizeDataAccessException e ) {
            // Ignored 
        }
    }
    if (value == null) {
        value = props.getProperty(placeholder);
    }
    return value;
}
项目：secure-data-service    文件：LdapServiceImpl.java    
@SuppressWarnings("rawtypes")
@Override
public User getUser(String realm, String uid) {
    AndFilter filter = new AndFilter();
    filter.and(new EqualsFilter(OBJECTCLASS, userObjectClass)).and(new EqualsFilter(userSearchAttribute, uid));
    DistinguishedName dn = new DistinguishedName("ou=" + realm);
    User user;
    try {
        List userList = ldapTemplate.search(dn, filter.toString(), SearchControls.SUBTREE_SCOPE, new String[] {
                "*", CREATE_TIMESTAMP, MODIFY_TIMESTAMP }, new UserContextMapper());
        if (userList == null || userList.size() == 0) {
            throw new EmptyResultDataAccessException(1);
        } else if (userList.size() > 1) {
            throw new IncorrectResultSizeDataAccessException("User must be unique", 1);
        }
        user = (User) userList.get(0);
        user.setUid(uid);
        user.setGroups(getGroupNames(getUserGroups(realm, uid)));
    } catch (EmptyResultDataAccessException e) {
        return null;
    }
    return user;
}
项目：spring-ldap    文件：LdapContextSourceIntegrationTest.java    
@SuppressWarnings("unchecked")
@Test
   @Category(NoAdTest.class)
public void verifyAuthenticate() {
    EqualsFilter filter = new EqualsFilter("cn", "Some Person2");
    List<String> results = ldapTemplate.search("", filter.toString(), new DnContextMapper());
    if (results.size() != 1) {
        throw new IncorrectResultSizeDataAccessException(1, results.size());
    }

    DirContext ctx = null;
    try {
        ctx = tested.getContext(results.get(0), "password");
        assertThat(true).isTrue();
    }
    catch (Exception e) {
        fail("Authentication failed");
    }
    finally {
        LdapUtils.closeContext(ctx);
    }
}
项目：spring-ldap    文件：LdapTemplateTest.java    
@Test
public void verifyThatFindOneThrowsIncorrectResultSizeDataAccessExceptionWhenMoreResults() throws Exception {
    Class<Object> expectedClass = Object.class;

    when(contextSourceMock.getReadOnlyContext()).thenReturn(dirContextMock);
    when(odmMock.filterFor(expectedClass,
            new EqualsFilter("ou", "somevalue"))).thenReturn(new EqualsFilter("ou", "somevalue"));

    DirContextAdapter expectedObject = new DirContextAdapter();
    SearchResult searchResult = new SearchResult("", expectedObject, new BasicAttributes());

    setupSearchResults(searchControlsRecursive(), new SearchResult[]{searchResult, searchResult});

    Object expectedResult = expectedObject;
    when(odmMock.mapFromLdapDataEntry(expectedObject, expectedClass)).thenReturn(expectedResult, expectedResult);

    try {
        tested.findOne(query().where("ou").is("somevalue"), expectedClass);
        fail("EmptyResultDataAccessException expected");
    } catch (IncorrectResultSizeDataAccessException expected) {
        assertThat(true).isTrue();
    }

    verify(namingEnumerationMock).close();
    verify(dirContextMock).close();
}
项目：spring-ldap    文件：LdapTemplateTest.java    
@Test
public void testAuthenticateWithTwoUsersFoundShouldThrowException() throws Exception {
    when(contextSourceMock.getReadOnlyContext()).thenReturn(dirContextMock);

    Object expectedObject = new DirContextAdapter(new BasicAttributes(), LdapUtils.newLdapName("cn=john doe"),
               LdapUtils.newLdapName("dc=jayway, dc=se"));
    SearchResult searchResult1 = new SearchResult("", expectedObject, new BasicAttributes());
    SearchResult searchResult2 = new SearchResult("", expectedObject, new BasicAttributes());

    setupSearchResults(searchControlsRecursive(), new SearchResult[] { searchResult1, searchResult2 });

    try {
        tested.authenticate(nameMock, "(ou=somevalue)", "password", entryContextCallbackMock);
        fail("IncorrectResultSizeDataAccessException expected");
    }
    catch (IncorrectResultSizeDataAccessException expected) {
        // expected
    }

       verify(dirContextMock).close();
}
项目：premier-wherehows    文件：LineageDAOLite.java    
private static ImpactDataset assignImpactDataset(String idurn) {
    int level = Integer.parseInt(idurn.substring(0, idurn.indexOf("****")));
    String urn = idurn.substring(idurn.indexOf("****") + 4);
    ImpactDataset impD = new ImpactDataset();

    Map<String, Object> row = null;
    MapSqlParameterSource parameters = new MapSqlParameterSource();
    parameters.addValue("urn", urn);
    NamedParameterJdbcTemplate namedParameterJdbcTemplate = new NamedParameterJdbcTemplate(getJdbcTemplate().getDataSource());

    try {
        row = namedParameterJdbcTemplate.queryForMap(GET_DATA_ATTR, parameters);
    } catch (IncorrectResultSizeDataAccessException irsdae) {
        Logger.error("Incorrect result size ", irsdae);
    } catch (DataAccessException dae) {
        Logger.error("SQL query failed ", dae);
    }

    impD.urn = urn;
    impD.level = level;
    impD.name = (String) row.get("name");
    impD.id = (Long) row.get("id");
    impD.datasetUrl = "#/datasets/" + impD.id;
    JsonNode prop = Json.parse((String) row.get("properties"));
    if (prop.has("valid") && (prop.get("valid").asText()) == "true") {
        impD.isValidDataset = true;
    } else {
        impD.isValidDataset = false;
    }
    return impD;
}
项目：ARCLib    文件：KerberosFilterBasedLdapUserSearch.java    
/**
 * Return the DirContextOperations containing the user's information
 *
 * @param username the kerberos username to search for.
 *
 * @return An DirContextOperations object containing the details of the located user's
 * directory entry
 *
 * @throws UsernameNotFoundException if no matching entry is found.
 */
public DirContextOperations searchForUser(String username) {
    String[] data = username.split("@");
    eq(data.length, 2, () -> new UsernameNotFoundException("Wrong username format for " + username));

    String accountName = data[0];
    String domainName = data[1];

    String[] domainData = domainName.split("\\.");

    String searchBase = Stream.of(domainData)
                              .map(part -> "dc=" + part)
                              .collect(Collectors.joining(","));

    log.debug("Searching for user '{}' in '{}', with user search {}.", accountName, searchBase, this);


    SpringSecurityLdapTemplate template = new SpringSecurityLdapTemplate(getContextSource());

    template.setSearchControls(getSearchControls());

    try {
        return template.searchForSingleEntry(searchBase, getSearchFilter(), new String[] { accountName });

    } catch (IncorrectResultSizeDataAccessException ex) {
        if (ex.getActualSize() == 0) {
            throw new UsernameNotFoundException("User " + username + " not found in directory.");
        }
        // Search should never return multiple results if properly configured, so just rethrow
        throw ex;
    }
}
项目：spring-data-snowdrop    文件：AbstractQueryAdapter.java    
protected T single() {
    List<T> list = list();
    switch (list.size()) {
        case 0:
            return null;
        case 1:
            return list.get(0);
        default:
            throw new IncorrectResultSizeDataAccessException(String.format("Found %s results, expected 1.", list.size()), 1);
    }
}
项目：spring-data-snowdrop    文件：JpaDatasourceMapper.java    
protected T single() {
    try {
        //noinspection unchecked
        return (T) fullTextQuery.uniqueResult();
    } catch (NonUniqueResultException ex) {
        throw new IncorrectResultSizeDataAccessException(ex.getMessage(), 1);
    } finally {
        close();
    }
}
项目：uPortal-start    文件：PortalPersonDirUserPasswordDaoTest.java    
public void testDuplicateUser() {
    this.jdbcTemplate.update("INSERT INTO UP_PERSON_DIR VALUES ('foobar', 'pass1')");
    this.jdbcTemplate.update("INSERT INTO UP_PERSON_DIR VALUES ('foobar', 'pass2')");

    try {
        this.userPasswordDao.getPasswordHash("foobar");
        fail("should have thrown IncorrectResultSizeDataAccessException");
    } catch (IncorrectResultSizeDataAccessException e) {
        //expected
    }
}
项目：Equella    文件：SqlTaxonomyDataSource.java    
@Override
public TermResult getTermByUuid(String termUuid)
{
    List<TermResult> trs = executeListQuery(queryGetTerm, Collections.singletonMap("uuid", termUuid));
    if( Check.isEmpty(trs) )
    {
        return null;
    }
    else if( trs.size() == 1 )
    {
        return trs.get(0);
    }
    else
    {
        // Sanity check - ensure only a single result
        throw new IncorrectResultSizeDataAccessException(1);
    }
}
项目：lams    文件：DataAccessUtils.java    
/**
 * Return a single result object from the given Collection.
 * <p>Returns {@code null} if 0 result objects found;
 * throws an exception if more than 1 element found.
 * @param results the result Collection (can be {@code null})
 * @return the single result object, or {@code null} if none
 * @throws IncorrectResultSizeDataAccessException if more than one
 * element has been found in the given Collection
 */
public static <T> T singleResult(Collection<T> results) throws IncorrectResultSizeDataAccessException {
    int size = (results != null ? results.size() : 0);
    if (size == 0) {
        return null;
    }
    if (results.size() > 1) {
        throw new IncorrectResultSizeDataAccessException(1, size);
    }
    return results.iterator().next();
}
项目：lams    文件：DataAccessUtils.java    
/**
 * Return a single result object from the given Collection.
 * <p>Throws an exception if 0 or more than 1 element found.
 * @param results the result Collection (can be {@code null})
 * @return the single result object
 * @throws IncorrectResultSizeDataAccessException if more than one
 * element has been found in the given Collection
 * @throws EmptyResultDataAccessException if no element at all
 * has been found in the given Collection
 */
public static <T> T requiredSingleResult(Collection<T> results) throws IncorrectResultSizeDataAccessException {
    int size = (results != null ? results.size() : 0);
    if (size == 0) {
        throw new EmptyResultDataAccessException(1);
    }
    if (results.size() > 1) {
        throw new IncorrectResultSizeDataAccessException(1, size);
    }
    return results.iterator().next();
}
项目：lams    文件：DataAccessUtils.java    
/**
 * Return a unique result object from the given Collection.
 * <p>Returns {@code null} if 0 result objects found;
 * throws an exception if more than 1 instance found.
 * @param results the result Collection (can be {@code null})
 * @return the unique result object, or {@code null} if none
 * @throws IncorrectResultSizeDataAccessException if more than one
 * result object has been found in the given Collection
 * @see org.springframework.util.CollectionUtils#hasUniqueObject
 */
public static <T> T uniqueResult(Collection<T> results) throws IncorrectResultSizeDataAccessException {
    int size = (results != null ? results.size() : 0);
    if (size == 0) {
        return null;
    }
    if (!CollectionUtils.hasUniqueObject(results)) {
        throw new IncorrectResultSizeDataAccessException(1, size);
    }
    return results.iterator().next();
}
项目：lams    文件：DataAccessUtils.java    
/**
 * Return a unique result object from the given Collection.
 * Throws an exception if 0 or more than 1 result objects found,
 * of if the unique result object is not convertable to the
 * specified required type.
 * @param results the result Collection (can be {@code null})
 * @return the unique result object
 * @throws IncorrectResultSizeDataAccessException if more than one
 * result object has been found in the given Collection
 * @throws EmptyResultDataAccessException if no result object
 * at all has been found in the given Collection
 * @throws TypeMismatchDataAccessException if the unique object does
 * not match the specified required type
 */
@SuppressWarnings("unchecked")
public static <T> T objectResult(Collection<?> results, Class<T> requiredType)
        throws IncorrectResultSizeDataAccessException, TypeMismatchDataAccessException {

    Object result = requiredUniqueResult(results);
    if (requiredType != null && !requiredType.isInstance(result)) {
        if (String.class.equals(requiredType)) {
            result = result.toString();
        }
        else if (Number.class.isAssignableFrom(requiredType) && Number.class.isInstance(result)) {
            try {
                result = NumberUtils.convertNumberToTargetClass(((Number) result), (Class<? extends Number>) requiredType);
            }
            catch (IllegalArgumentException ex) {
                throw new TypeMismatchDataAccessException(ex.getMessage());
            }
        }
        else {
            throw new TypeMismatchDataAccessException(
                    "Result object is of type [" + result.getClass().getName() +
                    "] and could not be converted to required type [" + requiredType.getName() + "]");
        }
    }
    return (T) result;
}
项目：spring4-understanding    文件：EntityManagerFactoryUtilsTests.java    
@Test
@SuppressWarnings("serial")
public void testConvertJpaPersistenceException() {
    EntityNotFoundException entityNotFound = new EntityNotFoundException();
    assertSame(JpaObjectRetrievalFailureException.class,
            EntityManagerFactoryUtils.convertJpaAccessExceptionIfPossible(entityNotFound).getClass());

    NoResultException noResult = new NoResultException();
    assertSame(EmptyResultDataAccessException.class,
            EntityManagerFactoryUtils.convertJpaAccessExceptionIfPossible(noResult).getClass());

    NonUniqueResultException nonUniqueResult = new NonUniqueResultException();
    assertSame(IncorrectResultSizeDataAccessException.class,
            EntityManagerFactoryUtils.convertJpaAccessExceptionIfPossible(nonUniqueResult).getClass());

    OptimisticLockException optimisticLock = new OptimisticLockException();
    assertSame(JpaOptimisticLockingFailureException.class,
            EntityManagerFactoryUtils.convertJpaAccessExceptionIfPossible(optimisticLock).getClass());

    EntityExistsException entityExists = new EntityExistsException("foo");
    assertSame(DataIntegrityViolationException.class,
            EntityManagerFactoryUtils.convertJpaAccessExceptionIfPossible(entityExists).getClass());

    TransactionRequiredException transactionRequired = new TransactionRequiredException("foo");
    assertSame(InvalidDataAccessApiUsageException.class,
            EntityManagerFactoryUtils.convertJpaAccessExceptionIfPossible(transactionRequired).getClass());

    PersistenceException unknown = new PersistenceException() {
    };
    assertSame(JpaSystemException.class,
            EntityManagerFactoryUtils.convertJpaAccessExceptionIfPossible(unknown).getClass());
}
项目：spring4-understanding    文件：DataAccessUtils.java    
/**
 * Return a single result object from the given Collection.
 * <p>Returns {@code null} if 0 result objects found;
 * throws an exception if more than 1 element found.
 * @param results the result Collection (can be {@code null})
 * @return the single result object, or {@code null} if none
 * @throws IncorrectResultSizeDataAccessException if more than one
 * element has been found in the given Collection
 */
public static <T> T singleResult(Collection<T> results) throws IncorrectResultSizeDataAccessException {
    int size = (results != null ? results.size() : 0);
    if (size == 0) {
        return null;
    }
    if (results.size() > 1) {
        throw new IncorrectResultSizeDataAccessException(1, size);
    }
    return results.iterator().next();
}
项目：spring4-understanding    文件：DataAccessUtils.java    
/**
 * Return a single result object from the given Collection.
 * <p>Throws an exception if 0 or more than 1 element found.
 * @param results the result Collection (can be {@code null})
 * @return the single result object
 * @throws IncorrectResultSizeDataAccessException if more than one
 * element has been found in the given Collection
 * @throws EmptyResultDataAccessException if no element at all
 * has been found in the given Collection
 */
public static <T> T requiredSingleResult(Collection<T> results) throws IncorrectResultSizeDataAccessException {
    int size = (results != null ? results.size() : 0);
    if (size == 0) {
        throw new EmptyResultDataAccessException(1);
    }
    if (results.size() > 1) {
        throw new IncorrectResultSizeDataAccessException(1, size);
    }
    return results.iterator().next();
}
项目：spring4-understanding    文件：DataAccessUtils.java    
/**
 * Return a unique result object from the given Collection.
 * <p>Returns {@code null} if 0 result objects found;
 * throws an exception if more than 1 instance found.
 * @param results the result Collection (can be {@code null})
 * @return the unique result object, or {@code null} if none
 * @throws IncorrectResultSizeDataAccessException if more than one
 * result object has been found in the given Collection
 * @see org.springframework.util.CollectionUtils#hasUniqueObject
 */
public static <T> T uniqueResult(Collection<T> results) throws IncorrectResultSizeDataAccessException {
    int size = (results != null ? results.size() : 0);
    if (size == 0) {
        return null;
    }
    if (!CollectionUtils.hasUniqueObject(results)) {
        throw new IncorrectResultSizeDataAccessException(1, size);
    }
    return results.iterator().next();
}
项目：spring4-understanding    文件：DataAccessUtils.java    
/**
 * Return a unique result object from the given Collection.
 * Throws an exception if 0 or more than 1 result objects found,
 * of if the unique result object is not convertable to the
 * specified required type.
 * @param results the result Collection (can be {@code null})
 * @return the unique result object
 * @throws IncorrectResultSizeDataAccessException if more than one
 * result object has been found in the given Collection
 * @throws EmptyResultDataAccessException if no result object
 * at all has been found in the given Collection
 * @throws TypeMismatchDataAccessException if the unique object does
 * not match the specified required type
 */
@SuppressWarnings("unchecked")
public static <T> T objectResult(Collection<?> results, Class<T> requiredType)
        throws IncorrectResultSizeDataAccessException, TypeMismatchDataAccessException {

    Object result = requiredUniqueResult(results);
    if (requiredType != null && !requiredType.isInstance(result)) {
        if (String.class == requiredType) {
            result = result.toString();
        }
        else if (Number.class.isAssignableFrom(requiredType) && Number.class.isInstance(result)) {
            try {
                result = NumberUtils.convertNumberToTargetClass(((Number) result), (Class<? extends Number>) requiredType);
            }
            catch (IllegalArgumentException ex) {
                throw new TypeMismatchDataAccessException(ex.getMessage());
            }
        }
        else {
            throw new TypeMismatchDataAccessException(
                    "Result object is of type [" + result.getClass().getName() +
                    "] and could not be converted to required type [" + requiredType.getName() + "]");
        }
    }
    return (T) result;
}
项目：spring4-understanding    文件：SqlQueryTests.java    
@Test
public void testFindTooManyCustomers() throws SQLException {
    given(resultSet.next()).willReturn(true, true, false);
    given(resultSet.getInt("id")).willReturn(1, 2);
    given(resultSet.getString("forename")).willReturn("rod", "rod");

    class CustomerQuery extends MappingSqlQuery<Customer> {

        public CustomerQuery(DataSource ds) {
            super(ds, SELECT_ID_FORENAME_WHERE);
            declareParameter(new SqlParameter(Types.VARCHAR));
            compile();
        }

        @Override
        protected Customer mapRow(ResultSet rs, int rownum) throws SQLException {
            Customer cust = new Customer();
            cust.setId(rs.getInt(COLUMN_NAMES[0]));
            cust.setForename(rs.getString(COLUMN_NAMES[1]));
            return cust;
        }

        public Customer findCustomer(String id) {
            return findObject(id);
        }
    }

    CustomerQuery query = new CustomerQuery(dataSource);
    thrown.expect(IncorrectResultSizeDataAccessException.class);
    try {
        query.findCustomer("rod");
    }
    finally {
        verify(preparedStatement).setString(1, "rod");
        verify(connection).prepareStatement(SELECT_ID_FORENAME_WHERE);
        verify(resultSet).close();
        verify(preparedStatement).close();
        verify(connection).close();
    }
}
项目：spring4-understanding    文件：JdbcTemplateQueryTests.java    
@Test
public void testQueryForObjectThrowsIncorrectResultSizeForMoreThanOneRow() throws Exception {
    String sql = "select pass from t_account where first_name='Alef'";
    given(this.resultSet.next()).willReturn(true, true, false);
    given(this.resultSet.getString(1)).willReturn("pass");
    this.thrown.expect(IncorrectResultSizeDataAccessException.class);
    try {
        this.template.queryForObject(sql, String.class);
    } finally {
        verify(this.resultSet).close();
        verify(this.statement).close();
    }
}