IcatMetadataEntry

java.lang.Object

gda.factory.ConfigurableBase

gda.factory.FindableConfigurableBase

gda.data.metadata.MetadataEntry

gda.data.metadata.IcatMetadataEntry

All Implemented Interfaces:: IMetadataEntry, Configurable, Findable, gda.observable.IObservable, Serializable

public class IcatMetadataEntry extends MetadataEntry

MetadataEntry that executes an ICAT query.

See Also:

Field Summary

Fields

Modifier and Type

Field

Description

protected String

query
Constructor Summary

Constructors

Constructor

Description

IcatMetadataEntry()

Creates an ICAT metadata entry.

IcatMetadataEntry(String name, String query)

Creates an ICAT metadata entry with the specified name and query.
Method Summary

Modifier and Type

Method

Description

String

readActualValue()

Returns the actual value of the metadata entry.

void

setQuery(String query)

Sets the query that will be executed.

Methods inherited from class gda.data.metadata.MetadataEntry
addIObserver, canStoreValue, configure, deleteIObserver, deleteIObservers, getDefEntryName, getMetadataValue, notifyIObservers, setDefEntryName, setValue, toString

Methods inherited from class gda.factory.FindableConfigurableBase
getName, setName

Methods inherited from class gda.factory.ConfigurableBase
isConfigureAtStartup, isConfigured, reconfigure, setConfigured

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Methods inherited from interface gda.factory.Configurable
isConfigureAtStartup, isConfigured, reconfigure

Methods inherited from interface gda.data.metadata.IMetadataEntry
getName, setName

Field Details
- query
  
  protected String query
Constructor Details
- IcatMetadataEntry
  
  public IcatMetadataEntry()
  
  Creates an ICAT metadata entry.
- IcatMetadataEntry
  
  public IcatMetadataEntry(String name, String query)
  
  Creates an ICAT metadata entry with the specified name and query.
  
  Parameters:
  
  name - the metadata entry name
  
  query - the value
Method Details
- setQuery
  
  public void setQuery(String query)
  
  Sets the query that will be executed.
  
  Parameters:
  
  query - the query
- readActualValue
  
  public String readActualValue() throws Exception
  
  Description copied from class: MetadataEntry
  
  Returns the actual value of the metadata entry. Any exception can be thrown by this method, which will cause MetadataEntry.getMetadataValue() to look for a default value (if one is specified).
  
  Specified by:
  
  readActualValue in class MetadataEntry
  
  Returns:
  
  the entry's actual value
  
  Throws:
  
  Exception - if the value cannot be retrieved