org.apache.ignite.internal.processors.query.h2.sys.view

Class SqlSystemViewCaches

java.lang.Object

org.apache.ignite.internal.processors.query.h2.sys.view.SqlAbstractSystemView

org.apache.ignite.internal.processors.query.h2.sys.view.SqlAbstractLocalSystemView

org.apache.ignite.internal.processors.query.h2.sys.view.SqlSystemViewCaches

All Implemented Interfaces:

SqlSystemView

public class SqlSystemViewCaches
extends SqlAbstractLocalSystemView

System view: caches.

Field Summary

Fields inherited from class org.apache.ignite.internal.processors.query.h2.sys.view.SqlAbstractSystemView

cols, ctx, DEFAULT_ROW_COUNT_APPROXIMATION, desc, indexes, log, tblName

Constructor Summary

Constructors

Constructor and Description
SqlSystemViewCaches(GridKernalContext ctx)

Method Summary

Modifier and Type	Method and Description
boolean	canGetRowCount() Check if the row count can be retrieved quickly.
long	getRowCount() Gets row count for this view (or approximated row count, if real value can't be calculated quickly).
Iterator<Row>	getRows(Session ses, SearchRow first, SearchRow last) Gets view content.

Methods inherited from class org.apache.ignite.internal.processors.query.h2.sys.view.SqlAbstractLocalSystemView

conditionForColumn, createRow, getColumnIndex, isDistributed, uuidFromValue, valueTimeFromMillis, valueTimestampFromMillis

Methods inherited from class org.apache.ignite.internal.processors.query.h2.sys.view.SqlAbstractSystemView

getColumns, getCreateSQL, getDescription, getIndexes, getTableName, newColumn, newColumn

Methods inherited from class java.lang.Object

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

Constructor Detail

SqlSystemViewCaches

public SqlSystemViewCaches(GridKernalContext ctx)

Parameters:

ctx - Grid context.

Method Detail

getRows

public Iterator<Row> getRows(Session ses,
                             SearchRow first,
                             SearchRow last)

Gets view content.

Parameters:

ses - Session.

first - First.

last - Last.

canGetRowCount

public boolean canGetRowCount()

Check if the row count can be retrieved quickly.

Specified by:

canGetRowCount in interface SqlSystemView

Overrides:

canGetRowCount in class SqlAbstractSystemView

Returns:

true if it can

getRowCount

public long getRowCount()

Gets row count for this view (or approximated row count, if real value can't be calculated quickly).

Specified by:

getRowCount in interface SqlSystemView

Overrides:

getRowCount in class SqlAbstractSystemView