com.inductiveautomation.gateway.tags.history.query

Class DatasourceTagLister

java.lang.Object

com.inductiveautomation.gateway.tags.history.query.DatasourceTagLister

public class DatasourceTagLister
extends java.lang.Object

Lists the historical tags available for the data source.
In the future, if we have different types of data sources, we can break the TagLister idea out into an interface.

Field Summary

Fields

Modifier and Type	Field and Description
static java.lang.String	PROVIDER_NAME_SEPARATOR

Constructor Summary

Constructors

Constructor and Description
DatasourceTagLister(GatewayContext context, java.lang.String datasource)

Method Summary

Modifier and Type	Method and Description
protected SRConnection	getConnection()
protected java.util.Map<java.lang.Integer,java.lang.String>	getDrivers()
protected QueryCache	getQueryCache()
java.util.Set<TagPath>	getTags()

Methods inherited from class java.lang.Object

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

Field Detail

PROVIDER_NAME_SEPARATOR

public static final java.lang.String PROVIDER_NAME_SEPARATOR

See Also:

Constant Field Values

Constructor Detail

DatasourceTagLister

public DatasourceTagLister(GatewayContext context,
                           java.lang.String datasource)

Method Detail

getQueryCache

protected QueryCache getQueryCache()

getConnection

protected SRConnection getConnection()
                              throws java.sql.SQLException

Throws:

java.sql.SQLException

getTags

public java.util.Set<TagPath> getTags()
                               throws java.lang.Exception

Throws:

java.lang.Exception

getDrivers

protected java.util.Map<java.lang.Integer,java.lang.String> getDrivers()
                                                                throws java.lang.Exception

Throws:

java.lang.Exception