Examples with ScanQuery org.apache.ignite.cache.query.ScanQuery used on opensource projects

Example 26 with ScanQuery

use of org.apache.ignite.cache.query.ScanQuery in project ignite by apache.

the class GridCacheQueryTransformerSelfTest method testLocalKeepBinaryFiltered.

/**
     * @throws Exception If failed.
     */
public void testLocalKeepBinaryFiltered() throws Exception {
    IgniteCache<Integer, Value> cache = grid().createCache("test-cache");
    try {
        for (int i = 0; i < 50; i++) cache.put(i, new Value("str" + i, i * 100));
        Collection<List<Integer>> lists = grid().compute().broadcast(new IgniteCallable<List<Integer>>() {

            @IgniteInstanceResource
            private Ignite ignite;

            @Override
            public List<Integer> call() throws Exception {
                IgniteBiPredicate<Integer, BinaryObject> filter = new IgniteBiPredicate<Integer, BinaryObject>() {

                    @Override
                    public boolean apply(Integer k, BinaryObject v) {
                        return v.<Integer>field("idx") % 1000 == 0;
                    }
                };
                IgniteClosure<Cache.Entry<Integer, BinaryObject>, Integer> transformer = new IgniteClosure<Cache.Entry<Integer, BinaryObject>, Integer>() {

                    @Override
                    public Integer apply(Cache.Entry<Integer, BinaryObject> e) {
                        return e.getValue().field("idx");
                    }
                };
                return ignite.cache("test-cache").withKeepBinary().query(new ScanQuery<>(filter).setLocal(true), transformer).getAll();
            }
        });
        List<Integer> res = new ArrayList<>(F.flatCollections(lists));
        assertEquals(5, res.size());
        Collections.sort(res);
        for (int i = 0; i < 5; i++) assertEquals(i * 1000, res.get(i).intValue());
    } finally {
        cache.destroy();
    }
}

Example 27 with ScanQuery

use of org.apache.ignite.cache.query.ScanQuery in project ignite by apache.

the class GridCacheQueryTransformerSelfTest method testLocalKeepBinary.

/**
     * @throws Exception If failed.
     */
public void testLocalKeepBinary() throws Exception {
    IgniteCache<Integer, Value> cache = grid().createCache("test-cache");
    try {
        for (int i = 0; i < 50; i++) cache.put(i, new Value("str" + i, i * 100));
        Collection<List<Integer>> lists = grid().compute().broadcast(new IgniteCallable<List<Integer>>() {

            @IgniteInstanceResource
            private Ignite ignite;

            @Override
            public List<Integer> call() throws Exception {
                IgniteClosure<Cache.Entry<Integer, BinaryObject>, Integer> transformer = new IgniteClosure<Cache.Entry<Integer, BinaryObject>, Integer>() {

                    @Override
                    public Integer apply(Cache.Entry<Integer, BinaryObject> e) {
                        return e.getValue().field("idx");
                    }
                };
                return ignite.cache("test-cache").withKeepBinary().query(new ScanQuery<Integer, BinaryObject>().setLocal(true), transformer).getAll();
            }
        });
        List<Integer> res = new ArrayList<>(F.flatCollections(lists));
        assertEquals(50, res.size());
        Collections.sort(res);
        for (int i = 0; i < 50; i++) assertEquals(i * 100, res.get(i).intValue());
    } finally {
        cache.destroy();
    }
}

Example 28 with ScanQuery

use of org.apache.ignite.cache.query.ScanQuery in project ignite by apache.

the class IgniteCacheQueryCacheDestroySelfTest method runQuery.

/**
     * @throws Exception If failed.
     */
private void runQuery() throws Exception {
    ScanQuery<String, String> scanQuery = new ScanQuery<String, String>().setLocal(true).setFilter(new IgniteBiPredicate<String, String>() {

        @Override
        public boolean apply(String key, String p) {
            return key != null && key.isEmpty();
        }
    });
    Ignite ignite = ignite(ThreadLocalRandom.current().nextInt(GRID_CNT));
    IgniteCache<String, String> example = ignite.cache(CACHE_NAME);
    for (int partition : ignite.affinity(CACHE_NAME).primaryPartitions(ignite.cluster().localNode())) {
        scanQuery.setPartition(partition);
        try (QueryCursor cursor = example.query(scanQuery)) {
            for (Object p : cursor) {
                String value = (String) ((Cache.Entry) p).getValue();
                assertNotNull(value);
            }
        }
    }
}

Example 29 with ScanQuery

use of org.apache.ignite.cache.query.ScanQuery in project ignite by apache.

the class PlatformCache method readScanQuery.

/**
     * Reads scan query.
     *
     * @param reader Binary reader.
     * @return Query.
     */
private Query readScanQuery(BinaryRawReaderEx reader) {
    boolean loc = reader.readBoolean();
    final int pageSize = reader.readInt();
    boolean hasPart = reader.readBoolean();
    Integer part = hasPart ? reader.readInt() : null;
    ScanQuery qry = new ScanQuery().setPageSize(pageSize);
    qry.setPartition(part);
    Object pred = reader.readObjectDetached();
    if (pred != null)
        qry.setFilter(platformCtx.createCacheEntryFilter(pred, 0));
    qry.setLocal(loc);
    return qry;
}