org.gvsig.fmap.dal.store.jdbc

Class JDBCSetProvider

java.lang.Object

org.gvsig.tools.dispose.impl.AbstractDisposable

org.gvsig.fmap.dal.feature.spi.AbstractFeatureSetProvider

org.gvsig.fmap.dal.store.jdbc.JDBCSetProvider

All Implemented Interfaces:

FeatureSetProvider, Disposable

Direct Known Subclasses:

H2SetProvider, PostgreSQLSetProvider

public class JDBCSetProvider
extends AbstractFeatureSetProvider

Field Summary

Fields

Modifier and Type	Field and Description
protected java.lang.String	filter
protected java.lang.Boolean	isEmpty
protected java.lang.String	order
protected java.util.List	resultSetIDReferenced
protected java.lang.Long	size

Constructor Summary

Constructors

Constructor and Description
JDBCSetProvider(JDBCStoreProvider store, FeatureQuery query, FeatureType featureType)

Method Summary

Methods

Modifier and Type	Method and Description
void	addResulsetReference(int resulsetID)
boolean	canFilter()
boolean	canIterateFromIndex()
boolean	canOrder()
protected JDBCIterator	createDefaultFastIterator(int resultSetID)
protected JDBCIterator	createDefaultIterator(int resultSetID)
protected JDBCIterator	createFastIterator(long index) Creates a new fast Iterator, begginning at the specified data index.
protected JDBCIterator	createIterator(long index) Creates a new Iterator, begginning at the specified data index.
protected void	doDispose() Internal implementation for the AbstractDisposable.dispose() method, to be implemented by child classes.
int	getDefaultFetchSize()
protected java.lang.String	getEscapedFieldName(java.lang.String fieldName)
protected int	getFetchSize()
long	getSize()
protected java.lang.String	getSQL(long fromIndex)
protected java.lang.String	getSqlForEvaluator(Evaluator filter)
boolean	isEmpty()
void	removeResulsetReference(int resulsetID)
void	setDefaultFetchSize(int defaultFetchSize)
protected void	setFilter(Evaluator filter)
protected void	setOrder(FeatureQueryOrder order)

Methods inherited from class org.gvsig.fmap.dal.feature.spi.AbstractFeatureSetProvider

fastIterator, fastIterator, getFeatureType, getQuery, getStore, iterator, iterator

Methods inherited from class org.gvsig.tools.dispose.impl.AbstractDisposable

dispose, dispose

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.gvsig.tools.dispose.Disposable

dispose

Field Detail

filter

protected java.lang.String filter

order

protected java.lang.String order

size

protected java.lang.Long size

isEmpty

protected java.lang.Boolean isEmpty

resultSetIDReferenced

protected java.util.List resultSetIDReferenced

Constructor Detail

JDBCSetProvider

public JDBCSetProvider(JDBCStoreProvider store,
               FeatureQuery query,
               FeatureType featureType)
                throws DataException

Throws:

DataException

Method Detail

getDefaultFetchSize

public int getDefaultFetchSize()

Returns:

the defaultFetchSize

setDefaultFetchSize

public void setDefaultFetchSize(int defaultFetchSize)

Parameters:

defaultFetchSize - the defaultFetchSize to set

getSqlForEvaluator

protected java.lang.String getSqlForEvaluator(Evaluator filter)

getEscapedFieldName

protected java.lang.String getEscapedFieldName(java.lang.String fieldName)

setOrder

protected void setOrder(FeatureQueryOrder order)

setFilter

protected void setFilter(Evaluator filter)

canFilter

public boolean canFilter()

canIterateFromIndex

public boolean canIterateFromIndex()

canOrder

public boolean canOrder()

doDispose

protected void doDispose()
                  throws BaseException

Description copied from class: AbstractDisposable

Internal implementation for the AbstractDisposable.dispose() method, to be implemented by child classes.

Specified by:

doDispose in class AbstractDisposable

Throws:

BaseException

See Also:

AbstractDisposable.dispose()

getSQL

protected java.lang.String getSQL(long fromIndex)
                           throws DataException

Throws:

DataException

getSize

public long getSize()
             throws DataException

Throws:

DataException

isEmpty

public boolean isEmpty()
                throws DataException

Throws:

DataException

getFetchSize

protected int getFetchSize()

createFastIterator

protected JDBCIterator createFastIterator(long index)
                                   throws DataException

Description copied from class: AbstractFeatureSetProvider

Creates a new fast Iterator, begginning at the specified data index. By fast this means the object instances of data ( FeatureProvider) may be reused between the Iterator.next() method invocations.

Specified by:

createFastIterator in class AbstractFeatureSetProvider

Parameters:

index - the first element position to be returned by the Iterator

Returns:

a new Iterator

Throws:

DataException - if there is an error creating the Iterator

createDefaultFastIterator

protected JDBCIterator createDefaultFastIterator(int resultSetID)
                                          throws DataException

Throws:

DataException

createIterator

protected JDBCIterator createIterator(long index)
                               throws DataException

Description copied from class: AbstractFeatureSetProvider

Creates a new Iterator, begginning at the specified data index.

Specified by:

createIterator in class AbstractFeatureSetProvider

Parameters:

index - the first element position to be returned by the Iterator

Returns:

a new Iterator

Throws:

DataException - if there is an error creating the Iterator

createDefaultIterator

protected JDBCIterator createDefaultIterator(int resultSetID)
                                      throws DataException

Throws:

DataException

addResulsetReference

public void addResulsetReference(int resulsetID)

removeResulsetReference

public void removeResulsetReference(int resulsetID)