Class ColumnIndexR2dbcResultReader

java.lang.Object

io.micronaut.data.r2dbc.mapper.ColumnIndexR2dbcResultReader

All Implemented Interfaces:

ResultReader<io.r2dbc.spi.Row, Integer>

public class ColumnIndexR2dbcResultReader
extends Object

Implementation of ResultReader for R2DBC.

Since:

1.0.0

Author:

graemerocher

Constructor Summary

Constructors

Constructor	Description
ColumnIndexR2dbcResultReader(@Nullable DataConversionService conversionService)	Constructs a new instance.

Method Summary

Modifier and Type	Method	Description
io.micronaut.core.convert.ConversionService	getConversionService()	Get conversion service.
<T> @Nullable T	getRequiredValue(io.r2dbc.spi.Row resultSet, Integer name, Class<T> type)	Get a value from the given result set for the given name and type.
boolean	next(io.r2dbc.spi.Row resultSet)	Move the index to the next result if possible.
@Nullable BigDecimal	readBigDecimal(io.r2dbc.spi.Row resultSet, Integer name)	Read a BigDecimal value for the given name.
boolean	readBoolean(io.r2dbc.spi.Row resultSet, Integer name)	Read a boolean value for the given name.
byte	readByte(io.r2dbc.spi.Row resultSet, Integer name)	Read a byte value for the given name.
byte @Nullable []	readBytes(io.r2dbc.spi.Row resultSet, Integer name)	Read a byte[] value for the given name.
char	readChar(io.r2dbc.spi.Row resultSet, Integer name)	Read a char value for the given name.
@Nullable Date	readDate(io.r2dbc.spi.Row resultSet, Integer name)	Read a date value for the given name.
double	readDouble(io.r2dbc.spi.Row resultSet, Integer name)	Read a double value for the given name.
@Nullable Object	readDynamic(io.r2dbc.spi.Row resultSet, @NonNull Integer index, @NonNull DataType dataType)	Read a value dynamically using the result set and the given name and data type.
float	readFloat(io.r2dbc.spi.Row resultSet, Integer name)	Read a float value for the given name.
int	readInt(io.r2dbc.spi.Row resultSet, Integer name)	Read an int value for the given name.
long	readLong(io.r2dbc.spi.Row resultSet, Integer name)	Read a long value for the given name.
short	readShort(io.r2dbc.spi.Row resultSet, Integer name)	Read a short value for the given name.
@Nullable String	readString(io.r2dbc.spi.Row resultSet, Integer name)	Read a string value for the given name.
@Nullable Date	readTimestamp(io.r2dbc.spi.Row resultSet, Integer index)	Read a timestamp value for the given index.

Methods inherited from class Object

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

Methods inherited from interface ResultReader

convertRequired, convertRequired, getRequiredValueNonNull, readDuration, readPeriod, readTime, readUUID

Constructor Details

ColumnIndexR2dbcResultReader

public ColumnIndexR2dbcResultReader(@Nullable DataConversionService conversionService)

Constructs a new instance.

Parameters:

conversionService - The data conversion service

Since:

3.1

Method Details

getConversionService

public io.micronaut.core.convert.ConversionService getConversionService()

Description copied from interface: ResultReader

Get conversion service.

Specified by:

getConversionService in interface ResultReader<R extends io.r2dbc.spi.Readable, Integer>

Returns:

the instance of ConversionService

readDynamic

public @Nullable Object readDynamic(io.r2dbc.spi.Row resultSet,
 @NonNull Integer index,
 @NonNull DataType dataType)

Description copied from interface: ResultReader

Read a value dynamically using the result set and the given name and data type.

Specified by:

readDynamic in interface ResultReader<R extends io.r2dbc.spi.Readable, Integer>

Parameters:

resultSet - The result set

index - The name

dataType - The data type

Returns:

The value, can be null

readLong

public long readLong(io.r2dbc.spi.Row resultSet,
 Integer name)

Description copied from interface: ResultReader

Read a long value for the given name.

Specified by:

readLong in interface ResultReader<R extends io.r2dbc.spi.Readable, Integer>

Parameters:

resultSet - The result set

name - The name (such as the column name)

Returns:

The long value

readChar

public char readChar(io.r2dbc.spi.Row resultSet,
 Integer name)

Description copied from interface: ResultReader

Read a char value for the given name.

Specified by:

readChar in interface ResultReader<R extends io.r2dbc.spi.Readable, Integer>

Parameters:

resultSet - The result set

name - The name (such as the column name)

Returns:

The char value

readDate

public @Nullable Date readDate(io.r2dbc.spi.Row resultSet,
 Integer name)

Description copied from interface: ResultReader

Read a date value for the given name.

Specified by:

readDate in interface ResultReader<R extends io.r2dbc.spi.Readable, Integer>

Parameters:

resultSet - The result set

name - The name (such as the column name)

Returns:

The char value

readTimestamp

public @Nullable Date readTimestamp(io.r2dbc.spi.Row resultSet,
 Integer index)

Description copied from interface: ResultReader

Read a timestamp value for the given index.

Specified by:

readTimestamp in interface ResultReader<R extends io.r2dbc.spi.Readable, Integer>

Parameters:

resultSet - The result set

index - The index (such as the column name)

Returns:

The char value

readString

public @Nullable String readString(io.r2dbc.spi.Row resultSet,
 Integer name)

Description copied from interface: ResultReader

Read a string value for the given name.

Specified by:

readString in interface ResultReader<R extends io.r2dbc.spi.Readable, Integer>

Parameters:

resultSet - The result set

name - The name (such as the column name)

Returns:

The string value

readInt

public int readInt(io.r2dbc.spi.Row resultSet,
 Integer name)

Description copied from interface: ResultReader

Read an int value for the given name.

Specified by:

readInt in interface ResultReader<R extends io.r2dbc.spi.Readable, Integer>

Parameters:

resultSet - The result set

name - The name (such as the column name)

Returns:

The int value

readBoolean

public boolean readBoolean(io.r2dbc.spi.Row resultSet,
 Integer name)

Description copied from interface: ResultReader

Read a boolean value for the given name.

Specified by:

readBoolean in interface ResultReader<R extends io.r2dbc.spi.Readable, Integer>

Parameters:

resultSet - The result set

name - The name (such as the column name)

Returns:

The boolean value

readFloat

public float readFloat(io.r2dbc.spi.Row resultSet,
 Integer name)

Description copied from interface: ResultReader

Read a float value for the given name.

Specified by:

readFloat in interface ResultReader<R extends io.r2dbc.spi.Readable, Integer>

Parameters:

resultSet - The result set

name - The name (such as the column name)

Returns:

The float value

readByte

public byte readByte(io.r2dbc.spi.Row resultSet,
 Integer name)

Description copied from interface: ResultReader

Read a byte value for the given name.

Specified by:

readByte in interface ResultReader<R extends io.r2dbc.spi.Readable, Integer>

Parameters:

resultSet - The result set

name - The name (such as the column name)

Returns:

The byte value

readShort

public short readShort(io.r2dbc.spi.Row resultSet,
 Integer name)

Description copied from interface: ResultReader

Read a short value for the given name.

Specified by:

readShort in interface ResultReader<R extends io.r2dbc.spi.Readable, Integer>

Parameters:

resultSet - The result set

name - The name (such as the column name)

Returns:

The short value

readDouble

public double readDouble(io.r2dbc.spi.Row resultSet,
 Integer name)

Description copied from interface: ResultReader

Read a double value for the given name.

Specified by:

readDouble in interface ResultReader<R extends io.r2dbc.spi.Readable, Integer>

Parameters:

resultSet - The result set

name - The name (such as the column name)

Returns:

The double value

readBigDecimal

public @Nullable BigDecimal readBigDecimal(io.r2dbc.spi.Row resultSet,
 Integer name)

Description copied from interface: ResultReader

Read a BigDecimal value for the given name.

Specified by:

readBigDecimal in interface ResultReader<R extends io.r2dbc.spi.Readable, Integer>

Parameters:

resultSet - The result set

name - The name (such as the column name)

Returns:

The BigDecimal value

readBytes

public byte @Nullable [] readBytes(io.r2dbc.spi.Row resultSet,
 Integer name)

Description copied from interface: ResultReader

Read a byte[] value for the given name.

Specified by:

readBytes in interface ResultReader<R extends io.r2dbc.spi.Readable, Integer>

Parameters:

resultSet - The result set

name - The name (such as the column name)

Returns:

The byte[] value

getRequiredValue

public <T> @Nullable T getRequiredValue(io.r2dbc.spi.Row resultSet,
 Integer name,
 Class<T> type)
                                 throws DataAccessException

Description copied from interface: ResultReader

Get a value from the given result set for the given name and type.

Specified by:

getRequiredValue in interface ResultReader<R extends io.r2dbc.spi.Readable, Integer>

Type Parameters:

T - The generic type

Parameters:

resultSet - The result set

name - The name

type - The type

Returns:

The value

Throws:

DataAccessException - if the value cannot be read

next

public boolean next(io.r2dbc.spi.Row resultSet)

Description copied from interface: ResultReader

Move the index to the next result if possible.

Specified by:

next in interface ResultReader<R extends io.r2dbc.spi.Readable, Integer>

Parameters:

resultSet - The result set

Returns:

The next result