Example usage for org.springframework.data.redis.core ConvertingCursor ConvertingCursor

Introduction

In this page you can find the example usage for org.springframework.data.redis.core ConvertingCursor ConvertingCursor.

Prototype

public ConvertingCursor(Cursor<S> cursor, Converter<S, T> converter) 

Source Link

Usage

From source file:com.mauersu.util.redis.DefaultHashOperations.java

@Override
public Cursor<Entry<HK, HV>> scan(K key, final ScanOptions options) {

    final byte[] rawKey = rawKey(key);
    return execute(new RedisCallback<Cursor<Map.Entry<HK, HV>>>() {

        @Override/*from w  ww  .  j  a  v  a 2s.c  o m*/
        public Cursor<Entry<HK, HV>> doInRedis(RedisConnection connection) throws DataAccessException {

            return new ConvertingCursor<Map.Entry<byte[], byte[]>, Map.Entry<HK, HV>>(
                    connection.hScan(rawKey, options),
                    new Converter<Map.Entry<byte[], byte[]>, Map.Entry<HK, HV>>() {

                        @Override
                        public Entry<HK, HV> convert(final Entry<byte[], byte[]> source) {

                            return new Map.Entry<HK, HV>() {

                                @Override
                                public HK getKey() {
                                    return deserializeHashKey(source.getKey());
                                }

                                @Override
                                public HV getValue() {
                                    return deserializeHashValue(source.getValue());
                                }

                                @Override
                                public HV setValue(HV value) {
                                    throw new UnsupportedOperationException(
                                            "Values cannot be set when scanning through entries.");
                                }
                            };

                        }
                    });
        }

    }, true);

}

---

From source file:com.mauersu.util.redis.DefaultSetOperations.java

@Override
public Cursor<V> scan(K key, final ScanOptions options) {

    final byte[] rawKey = rawKey(key);
    return execute(new RedisCallback<Cursor<V>>() {

        @Override//from   w w w  . j  a  va  2 s. co  m
        public Cursor<V> doInRedis(RedisConnection connection) throws DataAccessException {
            return new ConvertingCursor<byte[], V>(connection.sScan(rawKey, options),
                    new Converter<byte[], V>() {

                        @Override
                        public V convert(byte[] source) {
                            return deserializeValue(source);
                        }
                    });
        }
    }, true);

}

---

From source file:com.mauersu.util.redis.DefaultZSetOperations.java

@Override
public Cursor<TypedTuple<V>> scan(K key, final ScanOptions options) {

    final byte[] rawKey = rawKey(key);
    Cursor<Tuple> cursor = execute(new RedisCallback<Cursor<Tuple>>() {

        @Override/*from  w ww.  ja v  a  2  s  .c  om*/
        public Cursor<Tuple> doInRedis(RedisConnection connection) throws DataAccessException {
            connection.select(dbIndex);
            return connection.zScan(rawKey, options);
        }
    }, true);

    return new ConvertingCursor<Tuple, TypedTuple<V>>(cursor, new Converter<Tuple, TypedTuple<V>>() {

        @Override
        public TypedTuple<V> convert(Tuple source) {
            return deserializeTuple(source);
        }
    });
}

---

From source file:org.springframework.data.redis.connection.DefaultStringRedisConnection.java

@Override
public Cursor<Entry<String, String>> hScan(String key, ScanOptions options) {

    return new ConvertingCursor<Map.Entry<byte[], byte[]>, Map.Entry<String, String>>(
            this.delegate.hScan(this.serialize(key), options),
            new Converter<Map.Entry<byte[], byte[]>, Map.Entry<String, String>>() {

                @Override//w w w.  j a  va 2s.c om
                public Entry<String, String> convert(final Entry<byte[], byte[]> source) {
                    return new Map.Entry<String, String>() {

                        @Override
                        public String getKey() {
                            return bytesToString.convert(source.getKey());
                        }

                        @Override
                        public String getValue() {
                            return bytesToString.convert(source.getValue());
                        }

                        @Override
                        public String setValue(String value) {
                            throw new UnsupportedOperationException("Cannot set value for entry in cursor");
                        }
                    };
                }
            });
}

---

From source file:org.springframework.data.redis.connection.DefaultStringRedisConnection.java

@Override
public Cursor<String> sScan(String key, ScanOptions options) {
    return new ConvertingCursor<byte[], String>(this.delegate.sScan(this.serialize(key), options),
            bytesToString);/*from  ww w .ja  v a2  s  .  com*/
}

---

From source file:org.springframework.data.redis.connection.DefaultStringRedisConnection.java

@Override
public Cursor<StringTuple> zScan(String key, ScanOptions options) {
    return new ConvertingCursor<Tuple, StringRedisConnection.StringTuple>(
            delegate.zScan(this.serialize(key), options), new TupleConverter());
}

---