org.datanucleus.store.json.fieldmanager

Class FetchFieldManager

java.lang.Object

org.datanucleus.store.fieldmanager.AbstractFieldManager

org.datanucleus.store.fieldmanager.AbstractFetchFieldManager

org.datanucleus.store.json.fieldmanager.FetchFieldManager

All Implemented Interfaces:

org.datanucleus.store.fieldmanager.FieldConsumer, org.datanucleus.store.fieldmanager.FieldManager, org.datanucleus.store.fieldmanager.FieldSupplier

Direct Known Subclasses:

FetchEmbeddedFieldManager

public class FetchFieldManager
extends org.datanucleus.store.fieldmanager.AbstractFetchFieldManager

FieldManager for fetching from JSON.

Field Summary

Fields

Modifier and Type	Field and Description
protected JSONObject	jsonobj
protected org.datanucleus.store.StoreManager	storeMgr
protected org.datanucleus.store.schema.table.Table	table

Fields inherited from class org.datanucleus.store.fieldmanager.AbstractFetchFieldManager

cmd, ec, op

Constructor Summary

Constructors

Constructor and Description
FetchFieldManager(org.datanucleus.ExecutionContext ec, org.datanucleus.metadata.AbstractClassMetaData cmd, JSONObject jsonobj, org.datanucleus.store.schema.table.Table table)
FetchFieldManager(org.datanucleus.state.ObjectProvider op, JSONObject jsonobj, org.datanucleus.store.schema.table.Table table)

Method Summary

Modifier and Type	Method and Description
boolean	fetchBooleanField(int fieldNumber)
byte	fetchByteField(int fieldNumber)
char	fetchCharField(int fieldNumber)
double	fetchDoubleField(int fieldNumber)
float	fetchFloatField(int fieldNumber)
int	fetchIntField(int fieldNumber)
long	fetchLongField(int fieldNumber)
Object	fetchObjectField(int fieldNumber)
protected Object	fetchObjectFieldEmbedded(int fieldNumber, org.datanucleus.metadata.AbstractMemberMetaData mmd, org.datanucleus.ClassLoaderResolver clr, org.datanucleus.metadata.RelationType relationType)
protected Object	fetchObjectFieldInternal(int fieldNumber, org.datanucleus.metadata.AbstractMemberMetaData mmd, org.datanucleus.ClassLoaderResolver clr, org.datanucleus.metadata.RelationType relationType)
short	fetchShortField(int fieldNumber)
String	fetchStringField(int fieldNumber)
protected org.datanucleus.store.schema.table.MemberColumnMapping	getColumnMapping(int fieldNumber)
protected Object	getComGoogleAppengineApiDatastoreKeyFromJSON(JSONObject jsonobj, Class cls, org.datanucleus.ClassLoaderResolver clr) Convenience method to create an AppEngine Key from a JSON object.
protected Object	getComGoogleAppengineApiUsersUserFromJSON(JSONObject jsonobj, Class cls, org.datanucleus.ClassLoaderResolver clr) Convenience method to create an AppEngine User from a JSON object.

Methods inherited from class org.datanucleus.store.fieldmanager.AbstractFieldManager

storeBooleanField, storeByteField, storeCharField, storeDoubleField, storeFloatField, storeIntField, storeLongField, storeObjectField, storeShortField, storeStringField

Methods inherited from class java.lang.Object

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

Field Detail

table

protected final org.datanucleus.store.schema.table.Table table

jsonobj

protected final JSONObject jsonobj

storeMgr

protected final org.datanucleus.store.StoreManager storeMgr

Constructor Detail

FetchFieldManager

public FetchFieldManager(org.datanucleus.ExecutionContext ec,
                         org.datanucleus.metadata.AbstractClassMetaData cmd,
                         JSONObject jsonobj,
                         org.datanucleus.store.schema.table.Table table)

FetchFieldManager

public FetchFieldManager(org.datanucleus.state.ObjectProvider op,
                         JSONObject jsonobj,
                         org.datanucleus.store.schema.table.Table table)

Method Detail

getColumnMapping

protected org.datanucleus.store.schema.table.MemberColumnMapping getColumnMapping(int fieldNumber)

fetchBooleanField

public boolean fetchBooleanField(int fieldNumber)

Specified by:

fetchBooleanField in interface org.datanucleus.store.fieldmanager.FieldSupplier

Overrides:

fetchBooleanField in class org.datanucleus.store.fieldmanager.AbstractFieldManager

fetchByteField

public byte fetchByteField(int fieldNumber)

Specified by:

fetchByteField in interface org.datanucleus.store.fieldmanager.FieldSupplier

Overrides:

fetchByteField in class org.datanucleus.store.fieldmanager.AbstractFieldManager

fetchCharField

public char fetchCharField(int fieldNumber)

Specified by:

fetchCharField in interface org.datanucleus.store.fieldmanager.FieldSupplier

Overrides:

fetchCharField in class org.datanucleus.store.fieldmanager.AbstractFieldManager

fetchDoubleField

public double fetchDoubleField(int fieldNumber)

Specified by:

fetchDoubleField in interface org.datanucleus.store.fieldmanager.FieldSupplier

Overrides:

fetchDoubleField in class org.datanucleus.store.fieldmanager.AbstractFieldManager

fetchFloatField

public float fetchFloatField(int fieldNumber)

Specified by:

fetchFloatField in interface org.datanucleus.store.fieldmanager.FieldSupplier

Overrides:

fetchFloatField in class org.datanucleus.store.fieldmanager.AbstractFieldManager

fetchIntField

public int fetchIntField(int fieldNumber)

Specified by:

fetchIntField in interface org.datanucleus.store.fieldmanager.FieldSupplier

Overrides:

fetchIntField in class org.datanucleus.store.fieldmanager.AbstractFieldManager

fetchLongField

public long fetchLongField(int fieldNumber)

Specified by:

fetchLongField in interface org.datanucleus.store.fieldmanager.FieldSupplier

Overrides:

fetchLongField in class org.datanucleus.store.fieldmanager.AbstractFieldManager

fetchShortField

public short fetchShortField(int fieldNumber)

Specified by:

fetchShortField in interface org.datanucleus.store.fieldmanager.FieldSupplier

Overrides:

fetchShortField in class org.datanucleus.store.fieldmanager.AbstractFieldManager

fetchStringField

public String fetchStringField(int fieldNumber)

Specified by:

fetchStringField in interface org.datanucleus.store.fieldmanager.FieldSupplier

Overrides:

fetchStringField in class org.datanucleus.store.fieldmanager.AbstractFieldManager

fetchObjectField

public Object fetchObjectField(int fieldNumber)

Specified by:

fetchObjectField in interface org.datanucleus.store.fieldmanager.FieldSupplier

Overrides:

fetchObjectField in class org.datanucleus.store.fieldmanager.AbstractFieldManager

fetchObjectFieldEmbedded

protected Object fetchObjectFieldEmbedded(int fieldNumber,
                                          org.datanucleus.metadata.AbstractMemberMetaData mmd,
                                          org.datanucleus.ClassLoaderResolver clr,
                                          org.datanucleus.metadata.RelationType relationType)
                                   throws JSONException

Throws:

JSONException

fetchObjectFieldInternal

protected Object fetchObjectFieldInternal(int fieldNumber,
                                          org.datanucleus.metadata.AbstractMemberMetaData mmd,
                                          org.datanucleus.ClassLoaderResolver clr,
                                          org.datanucleus.metadata.RelationType relationType)
                                   throws JSONException

Throws:

JSONException

getComGoogleAppengineApiUsersUserFromJSON

protected Object getComGoogleAppengineApiUsersUserFromJSON(JSONObject jsonobj,
                                                           Class cls,
                                                           org.datanucleus.ClassLoaderResolver clr)

Convenience method to create an AppEngine User from a JSON object. TODO Move this out somewhere else

Parameters:

jsonobj - The JSONObject

cls - Class being represented (User)

clr - ClassLoader resolver

Returns:

The Key

getComGoogleAppengineApiDatastoreKeyFromJSON

protected Object getComGoogleAppengineApiDatastoreKeyFromJSON(JSONObject jsonobj,
                                                              Class cls,
                                                              org.datanucleus.ClassLoaderResolver clr)

Convenience method to create an AppEngine Key from a JSON object. TODO Move this out somewhere else

Parameters:

jsonobj - The JSONObject

cls - Class being represented (Key)

clr - ClassLoader resolver

Returns:

The Key