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package oracle.toplink.essentials.internal.databaseaccess;
import java.io.*;
import java.util.Map;
import oracle.toplink.essentials.exceptions.*;
import oracle.toplink.essentials.queryframework.*;
import oracle.toplink.essentials.internal.helper.*;
import oracle.toplink.essentials.sequencing.Sequence;
import oracle.toplink.essentials.internal.sessions.AbstractSession;
import oracle.toplink.essentials.sessions.DatabaseSession;
/**
* Platform is private to TopLink. It encapsulates behavior specific to a datasource platform
* (eg. Oracle, Sybase, DB2, Attunity, MQSeries), and provides the interface for TopLink to access this behavior.
*
* @see DatasourcePlatform
* @see DatabasePlatform
* @see oracle.toplink.essentials.eis.EISPlatform
* @see oracle.toplink.essentials.xml.XMLPlatform
* @see oracle.toplink.essentials.sdk.SDKPlatform
*
* @since OracleAS TopLink 10<i>g</i> (10.0.3)
*/
public interface Platform extends Serializable, Cloneable {
public Object clone();
/**
* Convert the object to the appropriate type by invoking the appropriate
* ConversionManager method
* @param object - the object that must be converted
* @param javaClass - the class that the object must be converted to
* @exception - ConversionException, all exceptions will be thrown as this type.
* @return - the newly converted object
*/
public Object convertObject(Object sourceObject, Class javaClass) throws ConversionException;
/**
* Copy the state into the new platform.
*/
public void copyInto(Platform platform);
/**
* The platform hold its own instance of conversion manager to allow customization.
*/
public ConversionManager getConversionManager();
/**
* The platform hold its own instance of conversion manager to allow customization.
*/
public void setConversionManager(ConversionManager conversionManager);
/**
* Return the qualifier for the table. Required by some
* databases such as Oracle and DB2
*/
public String getTableQualifier();
/**
* Answer the timestamp from the server.
*/
public java.sql.Timestamp getTimestampFromServer(AbstractSession session, String sessionName);
/**
* This method can be overridden by subclasses to return a
* query that will return the timestamp from the server.
* return null if the time should be the local time.
*/
public ValueReadQuery getTimestampQuery();
public boolean isAccess();
public boolean isAttunity();
public boolean isCloudscape();
public boolean isDerby();
public boolean isDB2();
public boolean isDBase();
public boolean isHSQL();
public boolean isInformix();
public boolean isMySQL();
public boolean isODBC();
public boolean isOracle();
public boolean isPointBase();
public boolean isSQLAnywhere();
public boolean isSQLServer();
public boolean isSybase();
public boolean isTimesTen();
public boolean isPostgreSQL();
/**
* Set the qualifier for the table. Required by some
* databases such as Oracle and DB2
*/
public void setTableQualifier(String qualifier);
/**
* Can override the default query for returning a timestamp from the server.
* See: getTimestampFromServer
*/
public void setTimestampQuery(ValueReadQuery tsQuery);
/**
* Add the parameter.
* Convert the parameter to a string and write it.
*/
public void appendParameter(Call call, Writer writer, Object parameter);
/**
* Allow for the platform to handle the representation of parameters specially.
*/
public Object getCustomModifyValueForCall(Call call, Object value, DatabaseField field, boolean shouldBind);
/**
* Allow for the platform to handle the representation of parameters specially.
*/
public boolean shouldUseCustomModifyForCall(DatabaseField field);
/**
* Get default sequence.
* Sequence name shouldn't be altered -
* don't do: getDefaultSequence().setName(newName).
*/
public Sequence getDefaultSequence();
/**
* Set default sequence.
* The sequence should have a unique name
* that shouldn't be altered after the sequence has been set:
* don't do: getDefaultSequence().setName(newName)).
* Default constructors for Sequence subclasses
* set name to "SEQ".
*/
public void setDefaultSequence(Sequence sequence);
/**
* Add sequence.
* The sequence should have a unique name
* that shouldn't be altered after the sequence has been added -
* don't do: getSequence(name).setName(newName))
*/
public void addSequence(Sequence sequence);
/**
* Get sequence corresponding to the name.
* The name shouldn't be altered -
* don't do: getSequence(name).setName(newName)
*/
public Sequence getSequence(String seqName);
/**
* Remove sequence corresponding to the name
* (the sequence was added through addSequence method)
*/
public Sequence removeSequence(String seqName);
/**
* Remove all sequences that were added throud addSequence method.
*/
public void removeAllSequences();
/**
* INTERNAL:
* Returns a map of sequence names to Sequences (may be null).
*/
public Map getSequences();
/**
* INTERNAL:
* Used only for writing into XML or Java.
*/
public Map getSequencesToWrite();
/**
* INTERNAL:
* Used only for writing into XML or Java.
*/
public Sequence getDefaultSequenceToWrite();
/**
* INTERNAL:
* Used only for reading from XML.
*/
public void setSequences(Map sequences);
/**
* INTERNAL:
* Indicates whether defaultSequence is the same as platform default sequence.
*/
public boolean usesPlatformDefaultSequence();
/**
* INTERNAL:
* Platform specific sequencing initialization.
* This internal method should only be called by SequencingManager.
*/
public void platformSpecificSequencingInitialization(DatabaseSession session);
}
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