org.apache.jdo.impl.fostore
Class FieldFetcher

java.lang.Object
  org.apache.jdo.impl.fostore.AbstractFieldManager
      org.apache.jdo.impl.fostore.FieldFetcher

All Implemented Interfaces:

org.apache.jdo.state.FieldManager

class FieldFetcher

extends AbstractFieldManager

Extend AbstractFieldManager overriding only fetchABCField methods

Author:

Dave Bristor

Field Summary

private java.lang.ClassLoader	candidateLoader ClassLoader to use for loading the class of the instance.
private java.lang.Class	cls Class of instance being fetched.
private int	currNum
private FOStoreInput	fin Read values from here.
(package private) static org.apache.commons.logging.Log	logger Logger
private FOStoreModel	model
private static org.apache.jdo.util.I18NHelper	msg I18N support.
private OID	oid
private OID	oldOID
private org.apache.jdo.pm.PersistenceManagerInternal	pm PM on whose behalf we read
private boolean	skip
private org.apache.jdo.state.StateManagerInternal	sm

Constructor Summary

(package private)	FieldFetcher(FOStoreInput fin, FOStoreModel model, org.apache.jdo.pm.PersistenceManagerInternal pm, java.lang.ClassLoader candidateLoader)
(package private)	FieldFetcher(FOStoreInput fin, FOStoreModel model, org.apache.jdo.pm.PersistenceManagerInternal pm, java.lang.ClassLoader candidateLoader, boolean skip) Called by AID when PK fields are written sequentially independent of their actual field numbers.

Method Summary

private void	fetch() Fetches data from input, resulting in an PersistenceCapable object with state from the datastore.
(package private) org.apache.jdo.state.StateManagerInternal	fetch(OID oid) Invoke this if you have an OID for the object that you're fetching.
(package private) void	fetch(org.apache.jdo.state.StateManagerInternal sm, OID oid) Invoke this if you have a StateManagerInternal for the object that you're fetching.
boolean	fetchBooleanField(int fieldNum)
byte	fetchByteField(int fieldNum)
char	fetchCharField(int fieldNum)
double	fetchDoubleField(int fieldNum)
float	fetchFloatField(int fieldNum)
int	fetchIntField(int fieldNum)
long	fetchLongField(int fieldNum)
java.lang.Object	fetchObjectField(int fieldNum)
short	fetchShortField(int fieldNum)
java.lang.String	fetchStringField(int fieldNum)
(package private) void	setPCClass(java.lang.Class pcClass)
private void	skipFields(int fieldNum)
void	storeBooleanField(int fieldNum, boolean value)
void	storeByteField(int fieldNum, byte value)
void	storeCharField(int fieldNum, char value)
void	storeDoubleField(int fieldNum, double value)
void	storeFloatField(int fieldNum, float value)
void	storeIntField(int fieldNum, int value)
void	storeLongField(int fieldNum, long value)
void	storeObjectField(int fieldNum, java.lang.Object value)
void	storeShortField(int fieldNum, short value)
void	storeStringField(int fieldNum, java.lang.String value)

Methods inherited from class java.lang.Object

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

Field Detail

fin

private final FOStoreInput fin

Read values from here.

pm

private final org.apache.jdo.pm.PersistenceManagerInternal pm

PM on whose behalf we read

model

private final FOStoreModel model

candidateLoader

private final java.lang.ClassLoader candidateLoader

ClassLoader to use for loading the class of the instance.

cls

private java.lang.Class cls

Class of instance being fetched.

sm

private org.apache.jdo.state.StateManagerInternal sm

oid

private OID oid

oldOID

private OID oldOID

currNum

private int currNum

skip

private boolean skip

msg

private static final org.apache.jdo.util.I18NHelper msg

I18N support.

logger

static final org.apache.commons.logging.Log logger

Logger

Constructor Detail

FieldFetcher

FieldFetcher(FOStoreInput fin,
             FOStoreModel model,
             org.apache.jdo.pm.PersistenceManagerInternal pm,
             java.lang.ClassLoader candidateLoader)

FieldFetcher

FieldFetcher(FOStoreInput fin,
             FOStoreModel model,
             org.apache.jdo.pm.PersistenceManagerInternal pm,
             java.lang.ClassLoader candidateLoader,
             boolean skip)

Called by AID when PK fields are written sequentially independent of their actual field numbers.

Method Detail

fetch

void fetch(org.apache.jdo.state.StateManagerInternal sm,
           OID oid)
     throws java.io.IOException

Invoke this if you have a StateManagerInternal for the object that you're fetching. For example, see FetchRequest.handleReply().

Throws:

java.io.IOException

fetch

org.apache.jdo.state.StateManagerInternal fetch(OID oid)
                                          throws java.io.IOException

Invoke this if you have an OID for the object that you're fetching. For example, see GetExtentRequest.handleReply().

Throws:

java.io.IOException

fetch

private void fetch()
            throws java.io.IOException

Fetches data from input, resulting in an PersistenceCapable object with state from the datastore. The format of the data is as per that described in InsertRequest.

Throws:

java.io.IOException

setPCClass

void setPCClass(java.lang.Class pcClass)

fetchBooleanField

public boolean fetchBooleanField(int fieldNum)

Specified by:

fetchBooleanField in interface org.apache.jdo.state.FieldManager

Overrides:

fetchBooleanField in class AbstractFieldManager

See Also:

FieldManager.fetchBooleanField(int fieldNum)

fetchCharField

public char fetchCharField(int fieldNum)

Specified by:

fetchCharField in interface org.apache.jdo.state.FieldManager

Overrides:

fetchCharField in class AbstractFieldManager

See Also:

FieldManager.fetchCharField(int fieldNum)

fetchByteField

public byte fetchByteField(int fieldNum)

Specified by:

fetchByteField in interface org.apache.jdo.state.FieldManager

Overrides:

fetchByteField in class AbstractFieldManager

See Also:

FieldManager.fetchByteField(int fieldNum)

fetchShortField

public short fetchShortField(int fieldNum)

Specified by:

fetchShortField in interface org.apache.jdo.state.FieldManager

Overrides:

fetchShortField in class AbstractFieldManager

See Also:

FieldManager.fetchShortField(int fieldNum)

fetchIntField

public int fetchIntField(int fieldNum)

Specified by:

fetchIntField in interface org.apache.jdo.state.FieldManager

Overrides:

fetchIntField in class AbstractFieldManager

See Also:

FieldManager.fetchIntField(int fieldNum)

fetchLongField

public long fetchLongField(int fieldNum)

Specified by:

fetchLongField in interface org.apache.jdo.state.FieldManager

Overrides:

fetchLongField in class AbstractFieldManager

See Also:

FieldManager.fetchLongField(int fieldNum)

fetchFloatField

public float fetchFloatField(int fieldNum)

Specified by:

fetchFloatField in interface org.apache.jdo.state.FieldManager

Overrides:

fetchFloatField in class AbstractFieldManager

See Also:

FieldManager.fetchFloatField(int fieldNum)

fetchDoubleField

public double fetchDoubleField(int fieldNum)

Specified by:

fetchDoubleField in interface org.apache.jdo.state.FieldManager

Overrides:

fetchDoubleField in class AbstractFieldManager

See Also:

FieldManager.fetchDoubleField(int fieldNum)

fetchStringField

public java.lang.String fetchStringField(int fieldNum)

Specified by:

fetchStringField in interface org.apache.jdo.state.FieldManager

Overrides:

fetchStringField in class AbstractFieldManager

See Also:

FieldManager.fetchStringField(int fieldNum)

fetchObjectField

public java.lang.Object fetchObjectField(int fieldNum)

Specified by:

fetchObjectField in interface org.apache.jdo.state.FieldManager

Overrides:

fetchObjectField in class AbstractFieldManager

See Also:

FieldManager.fetchObjectField(int fieldNum)

skipFields

private void skipFields(int fieldNum)

storeBooleanField

public void storeBooleanField(int fieldNum,
                              boolean value)

Specified by:

storeBooleanField in interface org.apache.jdo.state.FieldManager

See Also:

FieldManager.storeBooleanField(int fieldNum, boolean value)

storeCharField

public void storeCharField(int fieldNum,
                           char value)

Specified by:

storeCharField in interface org.apache.jdo.state.FieldManager

See Also:

FieldManager.storeCharField(int fieldNum, char value)

storeByteField

public void storeByteField(int fieldNum,
                           byte value)

Specified by:

storeByteField in interface org.apache.jdo.state.FieldManager

See Also:

FieldManager.storeByteField(int fieldNum, byte value)

storeShortField

public void storeShortField(int fieldNum,
                            short value)

Specified by:

storeShortField in interface org.apache.jdo.state.FieldManager

See Also:

FieldManager.storeShortField(int fieldNum, short value)

storeIntField

public void storeIntField(int fieldNum,
                          int value)

Specified by:

storeIntField in interface org.apache.jdo.state.FieldManager

See Also:

FieldManager.storeIntField(int fieldNum, int value)

storeLongField

public void storeLongField(int fieldNum,
                           long value)

Specified by:

storeLongField in interface org.apache.jdo.state.FieldManager

See Also:

FieldManager.storeLongField(int fieldNum, long value)

storeFloatField

public void storeFloatField(int fieldNum,
                            float value)

Specified by:

storeFloatField in interface org.apache.jdo.state.FieldManager

See Also:

FieldManager.storeFloatField(int fieldNum, float value)

storeDoubleField

public void storeDoubleField(int fieldNum,
                             double value)

Specified by:

storeDoubleField in interface org.apache.jdo.state.FieldManager

See Also:

FieldManager.storeDoubleField(int fieldNum, double value)

storeStringField

public void storeStringField(int fieldNum,
                             java.lang.String value)

Specified by:

storeStringField in interface org.apache.jdo.state.FieldManager

See Also:

FieldManager.storeStringField(int fieldNum, String value)

storeObjectField

public void storeObjectField(int fieldNum,
                             java.lang.Object value)

Specified by:

storeObjectField in interface org.apache.jdo.state.FieldManager

See Also:

FieldManager.storeObjectField(int fieldNum, Object value)