Java SqlFieldsQuery.setDistributedJoins方法代码示例

import org.apache.ignite.cache.query.SqlFieldsQuery; //导入方法依赖的package包/类
/**
 * @param cache Cache.
 * @param sql SQL.
 * @param enforceJoinOrder Enforce join order flag.
 */
private void checkQueryFails(final IgniteCache<Object, Object> cache,
    String sql,
    boolean enforceJoinOrder) {
    final SqlFieldsQuery qry = new SqlFieldsQuery(sql);

    qry.setDistributedJoins(true);
    qry.setEnforceJoinOrder(enforceJoinOrder);

    GridTestUtils.assertThrows(log, new Callable<Void>() {
        @Override public Void call() throws Exception {
            cache.query(qry);

            return null;
        }
    }, CacheException.class, null);
}
 

import org.apache.ignite.cache.query.SqlFieldsQuery; //导入方法依赖的package包/类
/**
 * @param sql SQL.
 * @param cache Cache.
 * @param enforceJoinOrder Enforce join order flag.
 * @param expSize Expected results size.
 * @param args Arguments.
 */
private void checkQuery(String sql,
    IgniteCache<Object, Object> cache,
    boolean enforceJoinOrder,
    int expSize,
    Object... args) {
    SqlFieldsQuery qry = new SqlFieldsQuery(sql);

    qry.setDistributedJoins(true);
    qry.setEnforceJoinOrder(enforceJoinOrder);
    qry.setArgs(args);

    log.info("Plan: " + queryPlan(cache, qry));

    QueryCursor<List<?>> cur = cache.query(qry);

    List<List<?>> res = cur.getAll();

    if (expSize != res.size())
        log.info("Results: " + res);

    assertEquals(expSize, res.size());
}
 

import org.apache.ignite.cache.query.SqlFieldsQuery; //导入方法依赖的package包/类
/**
 * @param cache Cache.
 * @param sql SQL.
 * @param enforceJoinOrder Enforce join order flag.
 */
private void checkQueryFails(final IgniteCache<Object, Object> cache,
    String sql,
    boolean enforceJoinOrder) {
    final SqlFieldsQuery qry = new SqlFieldsQuery(sql);

    qry.setDistributedJoins(true);
    qry.setEnforceJoinOrder(enforceJoinOrder);

    Throwable err = GridTestUtils.assertThrows(log, new Callable<Void>() {
        @Override public Void call() throws Exception {
            cache.query(qry);

            return null;
        }
    }, CacheException.class, null);

    assertTrue("Unexpected error message: " + err.getMessage(),
        err.getMessage().contains("can not use distributed joins for cache with custom AffinityKeyMapper configured."));
}
 

import org.apache.ignite.cache.query.SqlFieldsQuery; //导入方法依赖的package包/类
/**
 * @param sql SQL.
 * @param cache Cache.
 * @param enforceJoinOrder Enforce join order flag.
 * @param expSize Expected results size.
 */
private void checkQuery(String sql,
    IgniteCache<Object, Object> cache,
    boolean enforceJoinOrder,
    int expSize) {
    String plan = (String)cache.query(new SqlFieldsQuery("explain " + sql)
        .setDistributedJoins(true)
        .setEnforceJoinOrder(enforceJoinOrder))
        .getAll().get(0).get(0);

    log.info("Plan: " + plan);

    SqlFieldsQuery qry = new SqlFieldsQuery(sql);

    qry.setDistributedJoins(true);
    qry.setEnforceJoinOrder(enforceJoinOrder);

    QueryCursor<List<?>> cur = cache.query(qry);

    List<List<?>> res = cur.getAll();

    if (expSize != res.size())
        log.info("Results: " + res);

    assertEquals(expSize, res.size());
}
 

import org.apache.ignite.cache.query.SqlFieldsQuery; //导入方法依赖的package包/类
/**
 * @param sql SQL.
 * @param cache Cache.
 * @param enforceJoinOrder Enforce join order flag.
 * @param expSize Expected results size.
 * @param args Arguments.
 * @return Results.
 */
private List<List<?>> checkQuery(String sql,
    IgniteCache<Object, Object> cache,
    boolean enforceJoinOrder,
    int expSize,
    Object... args) {
    SqlFieldsQuery qry = new SqlFieldsQuery(sql);

    qry.setDistributedJoins(true);
    qry.setEnforceJoinOrder(enforceJoinOrder);
    qry.setArgs(args);

    log.info("Plan: " + queryPlan(cache, qry));

    QueryCursor<List<?>> cur = cache.query(qry);

    List<List<?>> res = cur.getAll();

    if (expSize != res.size())
        log.info("Results: " + res);

    assertEquals(expSize, res.size());

    return res;
}
 

import org.apache.ignite.cache.query.SqlFieldsQuery; //导入方法依赖的package包/类
/**
 * @param sql SQL.
 * @param cache Cache.
 * @param expSize Expected results size.
 * @param args Arguments.
 * @return Results.
 */
private List<List<?>> checkQuery(String sql,
    IgniteCache<Object, Object> cache,
    int expSize,
    Object... args) {
    SqlFieldsQuery qry = new SqlFieldsQuery(sql);

    qry.setDistributedJoins(true);
    qry.setArgs(args);

    log.info("Plan: " + queryPlan(cache, qry));

    QueryCursor<List<?>> cur = cache.query(qry);

    List<List<?>> res = cur.getAll();

    if (expSize != res.size())
        log.info("Results: " + res);

    assertEquals(expSize, res.size());

    return res;
}
 

import org.apache.ignite.cache.query.SqlFieldsQuery; //导入方法依赖的package包/类
/**
 * @throws Exception If failed.
 */
public void testIndexWithDifferentSegmentationLevelsFailure() throws Exception {
    CacheConfiguration ccfg1 = cacheConfig("pers", true,
        Integer.class, Person2.class).setQueryParallelism(4);
    CacheConfiguration ccfg2 = cacheConfig("org", true,
        Integer.class, Organization.class).setQueryParallelism(3);

    final IgniteCache<Object, Object> c1 = ignite(0).getOrCreateCache(ccfg1);
    final IgniteCache<Object, Object> c2 = ignite(0).getOrCreateCache(ccfg2);

    try {
        c2.put(1, new Organization("o1"));
        c2.put(2, new Organization("o2"));
        c1.put(3, new Person2(1, "p1"));
        c1.put(4, new Person2(2, "p2"));
        c1.put(5, new Person2(3, "p3"));

        String select0 = "select o.name n1, p.name n2 from \"pers\".Person2 p, \"org\".Organization o where p.orgId = o._key and o._key=1";

        final SqlFieldsQuery qry = new SqlFieldsQuery(select0);

        qry.setDistributedJoins(true);

        GridTestUtils.assertThrows(log, new Callable<Void>() {
            @Override public Void call() throws Exception {
                c1.query(qry);

                return null;
            }
        }, CacheException.class, "Using indexes with different parallelism levels in same query is forbidden.");
    }
    finally {
        c1.destroy();
        c2.destroy();
    }
}
 

import org.apache.ignite.cache.query.SqlFieldsQuery; //导入方法依赖的package包/类
/**
 * @param cache Cache.
 * @param enforceJoinOrder Enforce join order flag.
 * @param expBatchedJoins Expected batched joins count.
 * @param qry Query.
 * @param expText Expected text to find in plan.
 */
private void checkQueryPlan(IgniteCache<Object, Object> cache,
    boolean enforceJoinOrder,
    int expBatchedJoins,
    SqlFieldsQuery qry,
    String... expText) {
    qry.setEnforceJoinOrder(enforceJoinOrder);
    qry.setDistributedJoins(true);

    String plan = queryPlan(cache, qry);

    log.info("\n  Plan:\n" + plan);

    assertEquals("Unexpected number of batched joins in plan [plan=" + plan + ", qry=" + qry + ']',
        expBatchedJoins,
        StringUtils.countOccurrencesOf(plan, "batched"));

    int startIdx = 0;

    for (String exp : expText) {
        int idx = plan.indexOf(exp, startIdx);

        if (idx == -1) {
            fail("Plan does not contain expected string [startIdx=" + startIdx +
                ", plan=" + plan +
                ", exp=" + exp + ']');
        }

        startIdx = idx + 1;
    }
}
 

import org.apache.ignite.cache.query.SqlFieldsQuery; //导入方法依赖的package包/类
/**
 * @param cache Cache.
 */
private void checkPersonOrganizationGroupBy(IgniteCache cache) {
    if (skipQuery(cache, PERSON_CACHE_NAME, ORG_CACHE_NAME))
        return;

    qry = "checkPersonOrganizationGroupBy";

    // Max salary per organization.
    SqlFieldsQuery q = new SqlFieldsQuery("select max(p.salary) " +
        "from \"" + PERSON_CACHE_NAME + "\".Person p join \"" + ORG_CACHE_NAME + "\".Organization o " +
        "on p.orgId = o.id " +
        "group by o.name " +
        "having o.id = ?");

    q.setDistributedJoins(distributedJoins());

    for (Map.Entry<Integer, Integer> e : data.maxSalaryPerOrg.entrySet()) {
        Integer orgId = e.getKey();
        Integer maxSalary = e.getValue();

        q.setArgs(orgId);

        List<List<?>> res = cache.query(q).getAll();

        String errMsg = "Expected data [orgId=" + orgId + ", maxSalary=" + maxSalary + ", data=" + data + "]";

        // MaxSalary == -1 means that there are no persons at organization.
        if (maxSalary > 0) {
            assertEquals(errMsg, 1, res.size());
            assertEquals(errMsg, 1, res.get(0).size());
            assertEquals(errMsg, maxSalary, res.get(0).get(0));
        }
        else
            assertEquals(errMsg, 0, res.size());
    }
}
 

import org.apache.ignite.cache.query.SqlFieldsQuery; //导入方法依赖的package包/类
/**
 * @param cache Cache.
 */
private void checkPersonAccountGroupBy(IgniteCache cache) {
    if (skipQuery(cache, PERSON_CACHE_NAME, ACC_CACHE_NAME))
        return;

    qry = "checkPersonAccountGroupBy";

    // Count accounts per person.
    SqlFieldsQuery q = new SqlFieldsQuery("select count(a.id) " +
        "from \"" + PERSON_CACHE_NAME + "\".Person p join \"" + ACC_CACHE_NAME + "\".Account a " +
        "on p.strId = a.personStrId " +
        "group by p.name " +
        "having p.id = ?");

    q.setDistributedJoins(distributedJoins());

    List<Integer> keys = new ArrayList<>(data.accountsPerPerson.keySet());

    for (int i = 0; i < 10; i++) {
        Integer personId = keys.get(rnd.nextInt(keys.size()));
        Integer cnt = data.accountsPerPerson.get(personId);

        q.setArgs(personId);

        List<List<?>> res = cache.query(q).getAll();

        String errMsg = "Expected data [personId=" + personId + ", cnt=" + cnt + ", data=" + data + "]";

        // Cnt == 0 means that there are no accounts for the person.
        if (cnt > 0) {
            assertEquals(errMsg, 1, res.size());
            assertEquals(errMsg, 1, res.get(0).size());
            assertEquals(errMsg, (long)cnt, res.get(0).get(0));
        }
        else
            assertEquals(errMsg, 0, res.size());
    }
}
 

import org.apache.ignite.cache.query.SqlFieldsQuery; //导入方法依赖的package包/类
/** {@inheritDoc} */
@SuppressWarnings("unchecked")
@Override public <K, V> QueryCursor<Cache.Entry<K, V>> queryDistributedSql(String schemaName, String cacheName,
    SqlQuery qry, boolean keepBinary, int mainCacheId) {
    String type = qry.getType();

    H2TableDescriptor tblDesc = tableDescriptor(schemaName, cacheName, type);

    if (tblDesc == null)
        throw new IgniteSQLException("Failed to find SQL table for type: " + type,
            IgniteQueryErrorCode.TABLE_NOT_FOUND);

    String sql;

    try {
        sql = generateQuery(qry.getSql(), qry.getAlias(), tblDesc);
    }
    catch (IgniteCheckedException e) {
        throw new IgniteException(e);
    }

    SqlFieldsQuery fqry = new SqlFieldsQuery(sql);

    fqry.setArgs(qry.getArgs());
    fqry.setPageSize(qry.getPageSize());
    fqry.setDistributedJoins(qry.isDistributedJoins());
    fqry.setPartitions(qry.getPartitions());
    fqry.setLocal(qry.isLocal());

    if (qry.getTimeout() > 0)
        fqry.setTimeout(qry.getTimeout(), TimeUnit.MILLISECONDS);

    final QueryCursor<List<?>> res =
        queryDistributedSqlFields(schemaName, fqry, keepBinary, null, mainCacheId, true).get(0);

    final Iterable<Cache.Entry<K, V>> converted = new Iterable<Cache.Entry<K, V>>() {
        @Override public Iterator<Cache.Entry<K, V>> iterator() {
            final Iterator<List<?>> iter0 = res.iterator();

            return new Iterator<Cache.Entry<K, V>>() {
                @Override public boolean hasNext() {
                    return iter0.hasNext();
                }

                @Override public Cache.Entry<K, V> next() {
                    List<?> l = iter0.next();

                    return new CacheEntryImpl<>((K)l.get(0), (V)l.get(1));
                }

                @Override public void remove() {
                    throw new UnsupportedOperationException();
                }
            };
        }
    };

    // No metadata for SQL queries.
    return new QueryCursorImpl<Cache.Entry<K, V>>(converted) {
        @Override public void close() {
            res.close();
        }
    };
}
 

import org.apache.ignite.cache.query.SqlFieldsQuery; //导入方法依赖的package包/类
/** {@inheritDoc} */
@Override protected VisorEither<VisorQueryResult> run(final VisorQueryTaskArg arg) {
    try {
        UUID nid = ignite.localNode().id();

        SqlFieldsQuery qry = new SqlFieldsQuery(arg.getQueryText());
        qry.setPageSize(arg.getPageSize());
        qry.setLocal(arg.isLocal());
        qry.setDistributedJoins(arg.isDistributedJoins());
        qry.setEnforceJoinOrder(arg.isEnforceJoinOrder());
        qry.setReplicatedOnly(arg.isReplicatedOnly());
        qry.setLazy(arg.getLazy());

        long start = U.currentTimeMillis();

        List<FieldsQueryCursor<List<?>>> qryCursors;

        String cacheName = arg.getCacheName();

        if (F.isEmpty(cacheName))
            qryCursors = ignite.context().query().querySqlFieldsNoCache(qry, true, false);
        else {
            IgniteCache<Object, Object> c = ignite.cache(cacheName);

            if (c == null)
                throw new SQLException("Fail to execute query. Cache not found: " + cacheName);

            qryCursors = ((IgniteCacheProxy)c.withKeepBinary()).queryMultipleStatements(qry);
        }

        // In case of multiple statements leave opened only last cursor.
        for (int i = 0; i < qryCursors.size() - 1; i++)
            U.closeQuiet(qryCursors.get(i));

        // In case of multiple statements return last cursor as result.
        VisorQueryCursor<List<?>> cur = new VisorQueryCursor<>(F.last(qryCursors));

        Collection<GridQueryFieldMetadata> meta = cur.fieldsMeta();

        if (meta == null)
            return new VisorEither<>(
                new VisorExceptionWrapper(new SQLException("Fail to execute query. No metadata available.")));
        else {
            List<VisorQueryField> names = new ArrayList<>(meta.size());

            for (GridQueryFieldMetadata col : meta)
                names.add(new VisorQueryField(col.schemaName(), col.typeName(),
                    col.fieldName(), col.fieldTypeName()));

            List<Object[]> rows = fetchSqlQueryRows(cur, arg.getPageSize());

            // Query duration + fetch duration.
            long duration = U.currentTimeMillis() - start;

            boolean hasNext = cur.hasNext();

            // Generate query ID to store query cursor in node local storage.
            String qryId = SQL_QRY_NAME + "-" + UUID.randomUUID();

            if (hasNext) {
                ignite.cluster().<String, VisorQueryCursor<List<?>>>nodeLocalMap().put(qryId, cur);

                scheduleResultSetHolderRemoval(qryId, ignite);
            }
            else
                cur.close();

            return new VisorEither<>(new VisorQueryResult(nid, qryId, names, rows, hasNext, duration));
        }
    }
    catch (Throwable e) {
        return new VisorEither<>(new VisorExceptionWrapper(e));
    }
}
 

import org.apache.ignite.cache.query.SqlFieldsQuery; //导入方法依赖的package包/类
/**
 * Performs update.
 *
 * @param cache Cache.
 * @param sqlText SQL text.
 * @param args Parameters.
 * @return Update counter.
 * @throws SQLException If failed.
 */
private Integer doSingleUpdate(IgniteCache<?, ?> cache, String sqlText, List<Object> args) throws SQLException {
    SqlFieldsQuery qry = new SqlFieldsQueryEx(sqlText, false);

    qry.setPageSize(fetchSize);
    qry.setLocal(locQry);
    qry.setCollocated(collocatedQry);
    qry.setDistributedJoins(distributedJoins);
    qry.setSchema(schemaName);
    qry.setArgs(args == null ? null : args.toArray());

    QueryCursorImpl<List<?>> qryCursor = (QueryCursorImpl<List<?>>)cache.withKeepBinary().query(qry);

    if (qryCursor.isQuery()) {
        throw createJdbcSqlException(getError("Query produced result set", qry),
            IgniteQueryErrorCode.STMT_TYPE_MISMATCH);
    }

    List<List<?>> rows = qryCursor.getAll();

    if (F.isEmpty(rows))
        return SUCCESS_NO_INFO;

    if (rows.size() != 1)
        throw new SQLException(getError("Expected single row for update operation result", qry));

    List<?> row = rows.get(0);

    if (F.isEmpty(row) || row.size() != 1)
        throw new SQLException(getError("Expected row size of 1 for update operation", qry));

    Object objRes = row.get(0);

    if (!(objRes instanceof Long))
        throw new SQLException(getError("Unexpected update result type", qry));

    Long longRes = (Long)objRes;

    if (longRes > Integer.MAX_VALUE) {
        IgniteLogger log = ignite.log();

        if (log != null)
            log.warning(getError("Query updated row counter (" + longRes + ") exceeds integer range", qry));

        return Integer.MAX_VALUE;
    }

    return longRes.intValue();
}