Package com.clickhouse.client.data

Class ClickHouseSimpleRecord

java.lang.Object

com.clickhouse.client.data.ClickHouseSimpleRecord

All Implemented Interfaces:

ClickHouseRecord, Serializable, Iterable<ClickHouseValue>

public class ClickHouseSimpleRecord
extends Object
implements ClickHouseRecord

Default implementation of ClickHouseRecord, which is simply a combination of list of columns and array of values.

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field	Description
static ClickHouseSimpleRecord	EMPTY

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	ClickHouseSimpleRecord(List<ClickHouseColumn> columns, ClickHouseValue[] values)

Method Summary

Modifier and Type	Method	Description
ClickHouseRecord	copy()	Creates a new record by copying values from current one.
protected List<ClickHouseColumn>	getColumns()
ClickHouseValue	getValue(int index)	Gets deserialized value wrapped in an object using column index.
ClickHouseValue	getValue(String name)	Gets deserialized value wrapped in an object using case-insensitive column name, which usually is slower than ClickHouseRecord.getValue(int).
protected ClickHouseValue[]	getValues()
static ClickHouseRecord	of(List<ClickHouseColumn> columns, ClickHouseValue[] values)	Creates a record object to wrap given values.
int	size()	Gets size of the record.
protected void	update(ClickHouseValue[] values)
protected void	update(Object[] values)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface com.clickhouse.client.ClickHouseRecord

iterator

Methods inherited from interface java.lang.Iterable

forEach, spliterator

Field Detail

EMPTY

public static final ClickHouseSimpleRecord EMPTY

Constructor Detail

ClickHouseSimpleRecord

protected ClickHouseSimpleRecord(List<ClickHouseColumn> columns,
                                 ClickHouseValue[] values)

Method Detail

of

public static ClickHouseRecord of(List<ClickHouseColumn> columns,
                                  ClickHouseValue[] values)

Creates a record object to wrap given values.

Parameters:

columns - non-null list of columns

values - non-null array of values

Returns:

record

getColumns

protected List<ClickHouseColumn> getColumns()

getValues

protected ClickHouseValue[] getValues()

update

protected void update(ClickHouseValue[] values)

update

protected void update(Object[] values)

copy

public ClickHouseRecord copy()

Description copied from interface: ClickHouseRecord

Creates a new record by copying values from current one.

Specified by:

copy in interface ClickHouseRecord

Returns:

a new record

getValue

public ClickHouseValue getValue(int index)

Description copied from interface: ClickHouseRecord

Gets deserialized value wrapped in an object using column index. Please avoid to cache the wrapper object, as it's reused among records for memory efficiency when ClickHouseConfig.isReuseValueWrapper() returns true, which is the default value. So instead of map.put("my_value", record.getValue(0)), try something like map.put("my_value", record.getValue(0).asString()).

Specified by:

getValue in interface ClickHouseRecord

Parameters:

index - zero-based index of the column

Returns:

non-null wrapped value

getValue

public ClickHouseValue getValue(String name)

Description copied from interface: ClickHouseRecord

Gets deserialized value wrapped in an object using case-insensitive column name, which usually is slower than ClickHouseRecord.getValue(int). Please avoid to cache the wrapper object, as it's reused among records for memory efficiency when ClickHouseConfig.isReuseValueWrapper() returns true, which is the default value. So instead of map.put("my_value", record.getValue("my_column")), try something like map.put("my_value", record.getValue("my_column").asString()).

Specified by:

getValue in interface ClickHouseRecord

Parameters:

name - case-insensitive name of the column

Returns:

non-null wrapped value

size

public int size()

Description copied from interface: ClickHouseRecord

Gets size of the record.

Specified by:

size in interface ClickHouseRecord

Returns:

size of the record