org.springframework.data.cassandra.convert

Class ColumnReader

java.lang.Object

org.springframework.data.cassandra.convert.ColumnReader

public class ColumnReader
extends Object

Helpful class to read a column's value from a row, with possible type conversion.

Author:

Matthew T. Adams, Antoine Toulme, Mark Paluch

Field Summary

Fields

Modifier and Type	Field and Description
protected com.datastax.driver.core.ColumnDefinitions	columns
protected com.datastax.driver.core.Row	row

Constructor Summary

Constructors

Constructor and Description
ColumnReader(com.datastax.driver.core.Row row)

Method Summary

Modifier and Type	Method and Description
Object	get(CqlIdentifier name) Returns the row's column value.
<T> T	get(CqlIdentifier name, Class<T> requestedType) Returns the row's column value as an instance of the given type.
Object	get(int index) Read data from a Column using the index.
<T> T	get(int i, Class<T> requestedType) Returns the row's column value as an instance of the given type.
Object	get(String name) Returns the row's column value.
<T> T	get(String name, Class<T> requestedType) Returns the row's column value as an instance of the given type.
Object	getCollection(int i, com.datastax.driver.core.DataType type)
com.datastax.driver.core.Row	getRow()

Methods inherited from class java.lang.Object

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

Field Detail

row

protected com.datastax.driver.core.Row row

columns

protected com.datastax.driver.core.ColumnDefinitions columns

Constructor Detail

ColumnReader

public ColumnReader(com.datastax.driver.core.Row row)

Method Detail

get

public Object get(CqlIdentifier name)

Returns the row's column value.

get

public Object get(String name)

Returns the row's column value.

get

public Object get(int index)

Read data from a Column using the index.

Parameters:

index -

Returns:

getCollection

public Object getCollection(int i,
                            com.datastax.driver.core.DataType type)

getRow

public com.datastax.driver.core.Row getRow()

get

public <T> T get(CqlIdentifier name,
                 Class<T> requestedType)

Returns the row's column value as an instance of the given type.

Throws:

ClassCastException - if the value cannot be converted to the requested type.

get

public <T> T get(String name,
                 Class<T> requestedType)

Returns the row's column value as an instance of the given type.

Throws:

ClassCastException - if the value cannot be converted to the requested type.

get

public <T> T get(int i,
                 Class<T> requestedType)

Returns the row's column value as an instance of the given type.

Throws:

ClassCastException - if the value cannot be converted to the requested type.