Java Row.getMap方法代码示例

import com.datastax.driver.core.Row; //导入方法依赖的package包/类
public Object getColValue(Row row, String colName, DataType colType){	
	switch(colType.getName()){
	case VARCHAR: 
		return row.getString(colName);
	case UUID: 
		return row.getUUID(colName);
	case VARINT: 
		return row.getVarint(colName);
	case BIGINT: 
		return row.getLong(colName);
	case INT: 
		return row.getInt(colName);
	case FLOAT: 
		return row.getFloat(colName);	
	case DOUBLE: 
		return row.getDouble(colName);
	case BOOLEAN: 
		return row.getBool(colName);
	case MAP: 
		return row.getMap(colName, String.class, String.class);
	default: 
		return null;
	}
}
 

import com.datastax.driver.core.Row; //导入方法依赖的package包/类
private Object readRow(final Row row, final String name, final DataType colType) {
		switch (colType.getName()) {
		case BIGINT:
			return row.getLong(name);
		case BOOLEAN:
			return row.getBool(name);
		case DOUBLE:
			return row.getDouble(name);
		case FLOAT:
			return row.getFloat(name);
		case INT:
			return row.getInt(name);
		case MAP:
			return row.getMap(name, String.class, String.class);
		case UUID:
			return row.getUUID(name);
		case TEXT:
		case VARCHAR:
			return row.getString(name);
		case VARINT:
			return row.getVarint(name);
// These are not supported right now....
// ASCII
// BLOB
// COUNTER
// CUSTOM
// DECIMAL
// INET
// LIST
// SET
// TIMESTAMP
// TIMEUUID
// TUPLE
// UDT
		default:
			return null;
		}
	}
 

import com.datastax.driver.core.Row; //导入方法依赖的package包/类
private static void mapGenerations(Row row, GCEventImpl gcEvent, boolean checkContains) {
    Map<Generation, Capacity> capacityByGeneration = Collections.emptyMap();
    if (gcEvent.generations().size() > 1 && (!checkContains || (row.getColumnDefinitions().contains("gen_cap_before") &&
            row.getColumnDefinitions().contains("gen_cap_after") && row.getColumnDefinitions().contains("gen_cap_total")))) {
        capacityByGeneration = new IdentityHashMap<>(3);
        Map<Integer, Long> before = checkContains ? row.getMap("gen_cap_before", Integer.class, Long.class) :
                row.getMap(8, Integer.class, Long.class);
        Map<Integer, Long> after = checkContains ? row.getMap("gen_cap_after", Integer.class, Long.class) :
                row.getMap(9, Integer.class, Long.class);
        Map<Integer, Long> total = checkContains ? row.getMap("gen_cap_total", Integer.class, Long.class) :
                row.getMap(10, Integer.class, Long.class);

        for (Generation g : gcEvent.generations()) {
            capacityByGeneration.put(g, Capacity.of(
                    before.getOrDefault(g.type(), 0L),
                    after.getOrDefault(g.type(), 0L),
                    total.getOrDefault(g.type(), 0L)));
        }
    }

    gcEvent.capacityByGeneration(capacityByGeneration);
}
 

import com.datastax.driver.core.Row; //导入方法依赖的package包/类
private void createEvent(Row row, String aggregateType, VersionedName versionedName, TupleSchema tupleSchema) {
    Map<String, String> parameterData = row.getMap(PARAMETERS, String.class, String.class);
    Tuple parameters = tupleSchema.deserialise(deserialiser, parameterData);

    Event event = Event.of(
            AggregateId.of(aggregateType, row.getString(AGGREGATE_ID)),
            StreamTimestamp.of(row.getString(STREAM_ID), row.getDate(EVENT_TIMESTAMP).toInstant()),
            row.getUUID(PROCESSING_ID),
            versionedName,
            parameters,
            row.getInt(CHARACTERISTICS));

    eventCollector.accept(event);
}
 

import com.datastax.driver.core.Row; //导入方法依赖的package包/类
private static Map<String, String> getMap(Row row, String column) {
    if (row.getColumnDefinitions().contains(column)) {
        return row.getMap(column, String.class, String.class);
    }
    return null;
}