Package org.apache.accumulo.core.metadata.schema

Class TabletsMetadata.Builder

java.lang.Object

org.apache.accumulo.core.metadata.schema.TabletsMetadata.Builder

All Implemented Interfaces:

TabletsMetadata.Options, TabletsMetadata.RangeOptions, TabletsMetadata.TableOptions, TabletsMetadata.TableRangeOptions

Enclosing class:

TabletsMetadata

public static class TabletsMetadata.Builder
extends Object
implements TabletsMetadata.TableRangeOptions, TabletsMetadata.TableOptions, TabletsMetadata.RangeOptions, TabletsMetadata.Options

Method Summary

Modifier and Type	Method	Description
TabletsMetadata	build()
TabletsMetadata.Options	checkConsistency()	Checks that the metadata table forms a linked list and automatically backs up until it does.
TabletsMetadata.Options	fetch(TabletMetadata.ColumnType... colsToFetch)
TabletsMetadata.Options	forLevel(Ample.DataLevel level)	Read all of the tablet metadata for this level.
TabletsMetadata.TableRangeOptions	forTable(TableId tableId)	This method automatically determines where the metadata for the passed in table ID resides.
TabletsMetadata.Options	forTablet(KeyExtent extent)	Get the tablet metadata for this extents end row.
TabletsMetadata.Options	forTablets(Collection<KeyExtent> extents)	Get the tablet metadata for the given extents.
TabletsMetadata.Options	overlapping(org.apache.hadoop.io.Text startRow, boolean startInclusive, org.apache.hadoop.io.Text endRow)	When startRowInclusive is true limits to tablets that overlap the range [startRow,endRow].
TabletsMetadata.Options	overlapping(org.apache.hadoop.io.Text startRow, org.apache.hadoop.io.Text endRow)	Limit to tablets that overlap the range (startRow, endRow].
TabletsMetadata.Options	overRange(Range range)
TabletsMetadata.Options	readConsistency(Ample.ReadConsistency readConsistency)	Controls how the data is read.
TabletsMetadata.Options	saveKeyValues()	Saves the key values seen in the metadata table for each tablet.
TabletsMetadata.RangeOptions	scanTable(String tableName)	Obtain tablet metadata by scanning an arbitrary table.

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.accumulo.core.metadata.schema.TabletsMetadata.TableOptions

scanMetadataTable

Methods inherited from interface org.apache.accumulo.core.metadata.schema.TabletsMetadata.TableRangeOptions

overlapping

Method Detail

build

public TabletsMetadata build()

Specified by:

build in interface TabletsMetadata.Options

checkConsistency

public TabletsMetadata.Options checkConsistency()

Description copied from interface: TabletsMetadata.Options

Checks that the metadata table forms a linked list and automatically backs up until it does.

Specified by:

checkConsistency in interface TabletsMetadata.Options

fetch

public TabletsMetadata.Options fetch(TabletMetadata.ColumnType... colsToFetch)

Specified by:

fetch in interface TabletsMetadata.Options

forLevel

public TabletsMetadata.Options forLevel(Ample.DataLevel level)

Description copied from interface: TabletsMetadata.TableOptions

Read all of the tablet metadata for this level.

Specified by:

forLevel in interface TabletsMetadata.TableOptions

forTable

public TabletsMetadata.TableRangeOptions forTable(TableId tableId)

Description copied from interface: TabletsMetadata.TableOptions

This method automatically determines where the metadata for the passed in table ID resides. For example if a user tablet ID is passed in, then the metadata table is scanned. If the metadata table ID is passed in then the root table is scanned. Defaults to returning all tablets for the table ID.

Specified by:

forTable in interface TabletsMetadata.TableOptions

forTablet

public TabletsMetadata.Options forTablet(KeyExtent extent)

Description copied from interface: TabletsMetadata.TableOptions

Get the tablet metadata for this extents end row. This should only ever return a single tablet where the end row and prev end row exactly match the given extent.

Specified by:

forTablet in interface TabletsMetadata.TableOptions

forTablets

public TabletsMetadata.Options forTablets(Collection<KeyExtent> extents)

Description copied from interface: TabletsMetadata.TableOptions

Get the tablet metadata for the given extents. This will only return tablets where the end row and prev end row exactly match the given extents.

Specified by:

forTablets in interface TabletsMetadata.TableOptions

overRange

public TabletsMetadata.Options overRange(Range range)

Specified by:

overRange in interface TabletsMetadata.RangeOptions

overlapping

public TabletsMetadata.Options overlapping(org.apache.hadoop.io.Text startRow,
                                           boolean startInclusive,
                                           org.apache.hadoop.io.Text endRow)

Description copied from interface: TabletsMetadata.TableRangeOptions

When startRowInclusive is true limits to tablets that overlap the range [startRow,endRow]. When startRowInclusive is false limits to tablets that overlap the range (startRow, endRow]. Can pass null for start and end row representing -inf and +inf.

Specified by:

overlapping in interface TabletsMetadata.TableRangeOptions

overlapping

public TabletsMetadata.Options overlapping(org.apache.hadoop.io.Text startRow,
                                           org.apache.hadoop.io.Text endRow)

Description copied from interface: TabletsMetadata.TableRangeOptions

Limit to tablets that overlap the range (startRow, endRow]. Can pass null representing -inf and +inf. The impl creates open ended ranges which may be problematic, see #813.

This method is equivalent to calling TabletsMetadata.TableRangeOptions.overlapping(Text, boolean, Text) as overlapping(startRow, false, endRow)

Specified by:

overlapping in interface TabletsMetadata.TableRangeOptions

saveKeyValues

public TabletsMetadata.Options saveKeyValues()

Description copied from interface: TabletsMetadata.Options

Saves the key values seen in the metadata table for each tablet.

Specified by:

saveKeyValues in interface TabletsMetadata.Options

scanTable

public TabletsMetadata.RangeOptions scanTable(String tableName)

Description copied from interface: TabletsMetadata.TableOptions

Obtain tablet metadata by scanning an arbitrary table. Defaults to the range MetadataSchema.TabletsSection.getRange()

Specified by:

scanTable in interface TabletsMetadata.TableOptions

readConsistency

public TabletsMetadata.Options readConsistency(Ample.ReadConsistency readConsistency)

Description copied from interface: TabletsMetadata.Options

Controls how the data is read. If not, set then the default is Ample.ReadConsistency.IMMEDIATE

Specified by:

readConsistency in interface TabletsMetadata.Options