org.eclipse.scada.da.server.jdbc

Class AbstractQuery

java.lang.Object

org.eclipse.scada.da.server.jdbc.AbstractQuery

Direct Known Subclasses:

Query, TabularQuery

public abstract class AbstractQuery
extends java.lang.Object

Field Summary

Fields

Modifier and Type	Field and Description
protected java.util.Map<java.lang.Integer,java.lang.String>	columnAliases
protected Connection	connection
protected FolderItemFactory	itemFactory
protected java.lang.String	sql

Constructor Summary

Constructors

Constructor and Description
AbstractQuery(java.lang.String id, int period, java.lang.String sql, Connection connection, java.util.Map<java.lang.Integer,java.lang.String> columnAliases)

Method Summary

Methods

Modifier and Type	Method and Description
protected abstract void	doQuery()
protected java.lang.String	mapFieldName(int i, java.sql.ResultSet result)
void	register(java.util.concurrent.ScheduledExecutorService timer, DefaultChainItemFactory parentItemFactory)
protected abstract void	setGlobalError(java.lang.Throwable e)
void	tick()
void	unregister()

Methods inherited from class java.lang.Object

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

Field Detail

sql

protected final java.lang.String sql

connection

protected final Connection connection

itemFactory

protected FolderItemFactory itemFactory

columnAliases

protected final java.util.Map<java.lang.Integer,java.lang.String> columnAliases

Constructor Detail

AbstractQuery

public AbstractQuery(java.lang.String id,
             int period,
             java.lang.String sql,
             Connection connection,
             java.util.Map<java.lang.Integer,java.lang.String> columnAliases)

Method Detail

register

public void register(java.util.concurrent.ScheduledExecutorService timer,
            DefaultChainItemFactory parentItemFactory)

unregister

public void unregister()

tick

public void tick()

setGlobalError

protected abstract void setGlobalError(java.lang.Throwable e)

doQuery

protected abstract void doQuery()
                         throws java.lang.Exception

Throws:

java.lang.Exception

mapFieldName

protected java.lang.String mapFieldName(int i,
                            java.sql.ResultSet result)
                                 throws java.sql.SQLException

Throws:

java.sql.SQLException