Package com.illumon.iris.db.plot.util.tables

Class TableHandle

java.lang.Object

com.illumon.iris.db.plot.util.tables.TableHandle

All Implemented Interfaces:

Serializable

Direct Known Subclasses:

DeferredOperationTableHandle

public class TableHandle
extends Object
implements Serializable

A handle describing a remote table as well as the columns of the table that are needed.

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor	Description
TableHandle(Table table, boolean subscribeToPreemptiveUpdates, String... columns)
TableHandle(Table table, String... columns)

Method Summary

Modifier and Type	Method	Description
void	addColumn(String column)
boolean	equals(Object o)
void	freezeSnapshots()
Set<String>	getColumns()
TableDefinition	getFinalTableDefinition()	Get the TableDefinition of the table that will be handed off to actual plotting methods.
Map<String,Object>	getSnapshotData()
Table	getTable()
TableSnapshot	getTableSnapshot()
boolean	hasColumns(String... cols)
int	hashCode()
int	id()
boolean	isSubscribeToPreemptiveUpdates()
void	setTable(Table table)
void	setTableSnapshot(TableSnapshot tableSnapshot)
boolean	thawSnapshots()

Methods inherited from class java.lang.Object

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

Constructor Details

TableHandle

public TableHandle(@NotNull Table table, @NotNull String... columns)

TableHandle

public TableHandle(@NotNull Table table, boolean subscribeToPreemptiveUpdates, @NotNull String... columns)

Method Details

id

public int id()

addColumn

public void addColumn(String column)

getColumns

public Set<String> getColumns()

isSubscribeToPreemptiveUpdates

public boolean isSubscribeToPreemptiveUpdates()

hasColumns

public boolean hasColumns(String... cols)

getTable

public Table getTable()

getFinalTableDefinition

public TableDefinition getFinalTableDefinition()

Get the TableDefinition of the table that will be handed off to actual plotting methods. This method is important because in some cases (ie when ACls are applied to source tables) computations must be deferred until after ACL application so that they are applied correctly. In this case, the table produced by getTable() may be the raw source table, not the final table. This method is used to get the final result table definition no matter what the preconditions are.

Returns:

The TableDefinition of the plotted table.

setTable

public void setTable(Table table)

setTableSnapshot

public void setTableSnapshot(TableSnapshot tableSnapshot)

getTableSnapshot

public TableSnapshot getTableSnapshot()

getSnapshotData

public Map<String,Object> getSnapshotData()

freezeSnapshots

public void freezeSnapshots()

thawSnapshots

public boolean thawSnapshots()

equals

public boolean equals(Object o)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object