org.helenus.driver.impl

Class ClassInfoImpl.Context

java.lang.Object

org.helenus.driver.impl.ClassInfoImpl.Context

All Implemented Interfaces:

StatementManager.Context<T>

Direct Known Subclasses:

ClassInfoImpl.POJOContext, RootClassInfoImpl.Context, UDTRootClassInfoImpl.Context

Enclosing class:

ClassInfoImpl<T>

public class ClassInfoImpl.Context
extends Object
implements StatementManager.Context<T>

The Context class provides a specific context for the POJO as referenced while building a statement.

Since:

1.0

Version:

1 - Jan 19, 2015 - paouelle, vasu - Creation

Author:

The Helenus Driver Project Authors

Copyright:

2015-2016 The Helenus Driver Project Authors

Field Summary

Fields

Modifier and Type	Field and Description
protected Map<String,Object>	keyspaceKeys Holds the registered keyspace keys.

Method Summary

Modifier and Type	Method and Description
void	addKeyspaceKey(String name, Object value) Adds a keyspace key to the context for use in keyspace name creation.
ClassInfoImpl<T>	getClassInfo() Gets the class info for the POJO.
Collection<T>	getInitialObjects() Gets the initial objects to insert in a newly created table for this entity based on this context.
String	getKeyspace() Gets the keyspace name associated with this context.
T	getObject(com.datastax.driver.core.Row row)
T	getObject(com.datastax.driver.core.UDTValue uval) Converts the specified UDT value into a POJO object defined by this class information.
Class<T>	getObjectClass()

Methods inherited from class java.lang.Object

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

Field Detail

keyspaceKeys

protected final Map<String,Object> keyspaceKeys

Holds the registered keyspace keys.

Method Detail

getObjectClass

public Class<T> getObjectClass()

Specified by:

getObjectClass in interface StatementManager.Context<T>

See Also:

StatementManager.Context.getObjectClass()

getClassInfo

public ClassInfoImpl<T> getClassInfo()

Gets the class info for the POJO.

Returns:

the non-null class info for the POJO

getKeyspace

public String getKeyspace()

Gets the keyspace name associated with this context.

Returns:

the non-null keyspace name associated with this context

Throws:

ObjectNotFoundException - if unable to compute the keyspace name based on provided keyspace keys

ExcludedKeyspaceKeyException - if the context defines a keyspace key value which is marked as excluded for a given keyspace key

addKeyspaceKey

public void addKeyspaceKey(String name,
                           Object value)

Adds a keyspace key to the context for use in keyspace name creation.

Parameters:

name - the keyspace key name

value - the keyspace key value

Throws:

NullPointerException - if name or value is null

IllegalArgumentException - if the POJO doesn't require the specified keyspace key or if the value doesn't match the POJO's definition for the specified keyspace key

ExcludedKeyspaceKeyException - if the specified keyspace key value is marked as excluded the specified keyspace key

getObject

public T getObject(com.datastax.driver.core.Row row)

Specified by:

getObject in interface StatementManager.Context<T>

See Also:

StatementManager.Context.getObject(com.datastax.driver.core.Row)

getObject

public T getObject(com.datastax.driver.core.UDTValue uval)

Converts the specified UDT value into a POJO object defined by this class information.

Parameters:

uval - the UDT value to convert into a POJO

Returns:

the POJO object corresponding to the given UDT value

Throws:

ObjectConversionException - if unable to convert to a POJO

getInitialObjects

public Collection<T> getInitialObjects()

Gets the initial objects to insert in a newly created table for this entity based on this context.

Returns:

a non-null collection of the initial objects to insert in the table