Uses of Class
org.apache.hadoop.hbase.client.Scan

Packages that use Scan

Package	Description
org.apache.hadoop.hbase
org.apache.hadoop.hbase.client	Provides HBase Client
org.apache.hadoop.hbase.client.trace
org.apache.hadoop.hbase.protobuf	Holds classes generated from protobuf src/main/protobuf definition files.
org.apache.hadoop.hbase.quotas
org.apache.hadoop.hbase.shaded.protobuf

Uses of Scan in org.apache.hadoop.hbase

Methods in org.apache.hadoop.hbase that return Scan

Modifier and Type	Method and Description
static Scan	MetaTableAccessor.getScanForTableName(org.apache.hadoop.conf.Configuration conf, TableName tableName) This method creates a Scan object that will only scan catalog rows that belong to the specified table.

Uses of Scan in org.apache.hadoop.hbase.client

Subclasses of Scan in org.apache.hadoop.hbase.client

Modifier and Type	Class and Description
class	ImmutableScan Immutable version of Scan

Fields in org.apache.hadoop.hbase.client declared as Scan

Modifier and Type	Field and Description
protected Scan	ScannerCallable.scan
protected Scan	ClientScanner.scan

Methods in org.apache.hadoop.hbase.client that return Scan

Modifier and Type	Method and Description
Scan	ImmutableScan.addColumn(byte[] family, byte[] qualifier)
Scan	Scan.addColumn(byte[] family, byte[] qualifier) Get the column from the specified family with the specified qualifier.
Scan	ImmutableScan.addFamily(byte[] family)
Scan	Scan.addFamily(byte[] family) Get all columns from the specified family.
static Scan	Scan.createScanFromCursor(Cursor cursor) Create a new Scan with a cursor.
protected Scan	ScannerCallable.getScan()
protected Scan	ClientScanner.getScan()
Scan	ImmutableScan.readAllVersions()
Scan	Scan.readAllVersions() Get all available versions.
Scan	ImmutableScan.readVersions(int versions)
Scan	Scan.readVersions(int versions) Get up to the specified number of versions of each column.
Scan	ImmutableScan.setACL(Map<String,Permission> perms)
Scan	Scan.setACL(Map<String,Permission> perms)
Scan	ImmutableScan.setACL(String user, Permission perms)
Scan	Scan.setACL(String user, Permission perms)
Scan	ImmutableScan.setAllowPartialResults(boolean allowPartialResults)
Scan	Scan.setAllowPartialResults(boolean allowPartialResults) Setting whether the caller wants to see the partial results when server returns less-than-expected cells.
Scan	ImmutableScan.setAsyncPrefetch(boolean asyncPrefetch) Deprecated.
Scan	Scan.setAsyncPrefetch(boolean asyncPrefetch)
Scan	ImmutableScan.setAttribute(String name, byte[] value)
Scan	Scan.setAttribute(String name, byte[] value)
Scan	ImmutableScan.setAuthorizations(Authorizations authorizations)
Scan	Scan.setAuthorizations(Authorizations authorizations)
Scan	ImmutableScan.setBatch(int batch)
Scan	Scan.setBatch(int batch) Set the maximum number of cells to return for each call to next().
Scan	ImmutableScan.setCacheBlocks(boolean cacheBlocks)
Scan	Scan.setCacheBlocks(boolean cacheBlocks) Set whether blocks should be cached for this Scan.
Scan	ImmutableScan.setCaching(int caching)
Scan	Scan.setCaching(int caching) Set the number of rows for caching that will be passed to scanners.
Scan	ImmutableScan.setColumnFamilyTimeRange(byte[] cf, long minStamp, long maxStamp)
Scan	Scan.setColumnFamilyTimeRange(byte[] cf, long minStamp, long maxStamp)
Scan	ImmutableScan.setConsistency(Consistency consistency)
Scan	Scan.setConsistency(Consistency consistency)
Scan	ImmutableScan.setFamilyMap(Map<byte[],NavigableSet<byte[]>> familyMap)
Scan	Scan.setFamilyMap(Map<byte[],NavigableSet<byte[]>> familyMap) Setting the familyMap
Scan	ImmutableScan.setFilter(Filter filter)
Scan	Scan.setFilter(Filter filter)
Scan	ImmutableScan.setId(String id)
Scan	Scan.setId(String id)
Scan	ImmutableScan.setIsolationLevel(IsolationLevel level)
Scan	Scan.setIsolationLevel(IsolationLevel level)
Scan	ImmutableScan.setLimit(int limit)
Scan	Scan.setLimit(int limit) Set the limit of rows for this scan.
Scan	ImmutableScan.setLoadColumnFamiliesOnDemand(boolean value)
Scan	Scan.setLoadColumnFamiliesOnDemand(boolean value)
Scan	ImmutableScan.setMaxResultSize(long maxResultSize)
Scan	Scan.setMaxResultSize(long maxResultSize) Set the maximum result size.
Scan	ImmutableScan.setMaxResultsPerColumnFamily(int limit)
Scan	Scan.setMaxResultsPerColumnFamily(int limit) Set the maximum number of values to return per row per Column Family
Scan	Scan.setMaxVersions() Deprecated. since 2.0.0 and will be removed in 3.0.0. It is easy to misunderstand with column family's max versions, so use readAllVersions() instead.
Scan	Scan.setMaxVersions(int maxVersions) Deprecated. since 2.0.0 and will be removed in 3.0.0. It is easy to misunderstand with column family's max versions, so use readVersions(int) instead.
Scan	ImmutableScan.setNeedCursorResult(boolean needCursorResult)
Scan	Scan.setNeedCursorResult(boolean needCursorResult) When the server is slow or we scan a table with many deleted data or we use a sparse filter, the server will response heartbeat to prevent timeout.
Scan	ImmutableScan.setOneRowLimit()
Scan	Scan.setOneRowLimit() Call this when you only want to get one row.
Scan	ImmutableScan.setPriority(int priority)
Scan	Scan.setPriority(int priority)
Scan	ImmutableScan.setRaw(boolean raw)
Scan	Scan.setRaw(boolean raw) Enable/disable "raw" mode for this scan.
Scan	ImmutableScan.setReadType(Scan.ReadType readType)
Scan	Scan.setReadType(Scan.ReadType readType) Set the read type for this scan.
Scan	ImmutableScan.setReplicaId(int id)
Scan	Scan.setReplicaId(int Id)
Scan	ImmutableScan.setReversed(boolean reversed)
Scan	Scan.setReversed(boolean reversed) Set whether this scan is a reversed one
Scan	ImmutableScan.setRowOffsetPerColumnFamily(int offset)
Scan	Scan.setRowOffsetPerColumnFamily(int offset) Set offset for the row per Column Family.
Scan	Scan.setRowPrefixFilter(byte[] rowPrefix) Deprecated. since 2.5.0, will be removed in 4.0.0. The name of this method is considered to be confusing as it does not use a Filter but uses setting the startRow and stopRow instead. Use setStartStopRowForPrefixScan(byte[]) instead.
Scan	ImmutableScan.setScanMetricsEnabled(boolean enabled)
Scan	Scan.setScanMetricsEnabled(boolean enabled) Enable collection of ScanMetrics.
Scan	ImmutableScan.setSmall(boolean small) Deprecated.
Scan	Scan.setSmall(boolean small) Deprecated. since 2.0.0 and will be removed in 3.0.0. Use setLimit(int) and setReadType(ReadType) instead. And for the one rpc optimization, now we will also fetch data when openScanner, and if the number of rows reaches the limit then we will close the scanner automatically which means we will fall back to one rpc.
Scan	Scan.setStartRow(byte[] startRow) Deprecated. since 2.0.0 and will be removed in 3.0.0. Use withStartRow(byte[]) instead. This method may change the inclusive of the stop row to keep compatible with the old behavior.
Scan	ImmutableScan.setStartStopRowForPrefixScan(byte[] rowPrefix)
Scan	Scan.setStartStopRowForPrefixScan(byte[] rowPrefix) Set a filter (using stopRow and startRow) so the result set only contains rows where the rowKey starts with the specified prefix.
Scan	Scan.setStopRow(byte[] stopRow) Deprecated. since 2.0.0 and will be removed in 3.0.0. Use withStopRow(byte[]) instead. This method may change the inclusive of the stop row to keep compatible with the old behavior.
Scan	ImmutableScan.setTimeRange(long minStamp, long maxStamp)
Scan	Scan.setTimeRange(long minStamp, long maxStamp) Get versions of columns only within the specified timestamp range, [minStamp, maxStamp).
Scan	ImmutableScan.setTimestamp(long timestamp)
Scan	Scan.setTimestamp(long timestamp) Get versions of columns with the specified timestamp.
Scan	ImmutableScan.setTimeStamp(long timestamp) Deprecated.
Scan	Scan.setTimeStamp(long timestamp) Deprecated. As of release 2.0.0, this will be removed in HBase 3.0.0. Use setTimestamp(long) instead
Scan	ImmutableScan.withStartRow(byte[] startRow)
Scan	Scan.withStartRow(byte[] startRow) Set the start row of the scan.
Scan	ImmutableScan.withStartRow(byte[] startRow, boolean inclusive)
Scan	Scan.withStartRow(byte[] startRow, boolean inclusive) Set the start row of the scan.
Scan	ImmutableScan.withStopRow(byte[] stopRow)
Scan	Scan.withStopRow(byte[] stopRow) Set the stop row of the scan.
Scan	ImmutableScan.withStopRow(byte[] stopRow, boolean inclusive)
Scan	Scan.withStopRow(byte[] stopRow, boolean inclusive) Set the stop row of the scan.

Methods in org.apache.hadoop.hbase.client that return types with arguments of type Scan

Modifier and Type	Method and Description
Optional<Scan>	OnlineLogRecord.getScan() If "hbase.slowlog.scan.payload.enabled" is enabled then this value may be present and should represent the Scan that produced the given OnlineLogRecord

Methods in org.apache.hadoop.hbase.client with parameters of type Scan

Modifier and Type	Method and Description
static org.apache.hadoop.hbase.client.ScanResultCache	ConnectionUtils.createScanResultCache(Scan scan)
static long	PackagePrivateFieldAccessor.getMvccReadPoint(Scan scan)
default ResultScanner	Table.getScanner(Scan scan) Returns a scanner on the current table as specified by the Scan object.
ResultScanner	AsyncTable.getScanner(Scan scan) Returns a scanner on the current table as specified by the Scan object.
ResultScanner	HTable.getScanner(Scan scan) The underlying HTable must not be closed.
protected void	AbstractClientScanner.initScanMetrics(Scan scan) Check and initialize if application wants to collect scan metrics
void	AsyncTable.scan(Scan scan, C consumer) The scan API uses the observer pattern.
CompletableFuture<List<Result>>	AsyncTable.scanAll(Scan scan) Return all the results that match the given scan object.
static void	PackagePrivateFieldAccessor.setMvccReadPoint(Scan scan, long mvccReadPoint)
OnlineLogRecord.OnlineLogRecordBuilder	OnlineLogRecord.OnlineLogRecordBuilder.setScan(Scan scan)

Constructors in org.apache.hadoop.hbase.client with parameters of type Scan

Constructor and Description
ClientAsyncPrefetchScanner(org.apache.hadoop.conf.Configuration configuration, Scan scan, Scan scanForMetrics, TableName name, ClusterConnection connection, RpcRetryingCallerFactory rpcCallerFactory, RpcControllerFactory rpcControllerFactory, ExecutorService pool, int scanReadRpcTimeout, int scannerTimeout, int replicaCallTimeoutMicroSecondScan, ConnectionConfiguration connectionConfiguration, Map<String,byte[]> requestAttributes)
ClientScanner(org.apache.hadoop.conf.Configuration conf, Scan scan, Scan scanForMetrics, TableName tableName, ClusterConnection connection, RpcRetryingCallerFactory rpcFactory, RpcControllerFactory controllerFactory, ExecutorService pool, int scanReadRpcTimeout, int scannerTimeout, int primaryOperationTimeout, ConnectionConfiguration connectionConfiguration, Map<String,byte[]> requestAttributes) Create a new ClientScanner for the specified table Note that the passed Scan's start row maybe changed changed.
ClientSimpleScanner(org.apache.hadoop.conf.Configuration configuration, Scan scan, Scan scanForMetrics, TableName name, ClusterConnection connection, RpcRetryingCallerFactory rpcCallerFactory, RpcControllerFactory rpcControllerFactory, ExecutorService pool, int scanReadRpcTimeout, int scannerTimeout, int replicaCallTimeoutMicroSecondScan, ConnectionConfiguration connectionConfiguration, Map<String,byte[]> requestAttributes)
ImmutableScan(Scan scan) Create Immutable instance of Scan from given Scan object
ReversedClientScanner(org.apache.hadoop.conf.Configuration conf, Scan scan, Scan scanForMetrics, TableName tableName, ClusterConnection connection, RpcRetryingCallerFactory rpcFactory, RpcControllerFactory controllerFactory, ExecutorService pool, int scanReadRpcTimeout, int scannerTimeout, int primaryOperationTimeout, ConnectionConfiguration connectionConfiguration, Map<String,byte[]> requestAttributes) Create a new ReversibleClientScanner for the specified table Note that the passed Scan's start row maybe changed.
ReversedScannerCallable(ClusterConnection connection, TableName tableName, Scan scan, ScanMetrics scanMetrics, RpcControllerFactory rpcFactory, int replicaId, Map<String,byte[]> requestAttributes)
Scan(Scan scan) Creates a new instance of this class while copying all values.
ScannerCallable(ClusterConnection connection, TableName tableName, Scan scan, ScanMetrics scanMetrics, RpcControllerFactory rpcControllerFactory, int id, Map<String,byte[]> requestAttributes)

Uses of Scan in org.apache.hadoop.hbase.client.trace

Methods in org.apache.hadoop.hbase.client.trace with parameters of type Scan

Modifier and Type	Method and Description
TableOperationSpanBuilder	TableOperationSpanBuilder.setOperation(Scan scan)

Uses of Scan in org.apache.hadoop.hbase.protobuf

Methods in org.apache.hadoop.hbase.protobuf that return Scan

Modifier and Type	Method and Description
static Scan	ProtobufUtil.toScan(org.apache.hadoop.hbase.protobuf.generated.ClientProtos.Scan proto) Convert a protocol buffer Scan to a client Scan

Methods in org.apache.hadoop.hbase.protobuf with parameters of type Scan

Modifier and Type	Method and Description
static org.apache.hadoop.hbase.protobuf.generated.ClientProtos.Scan	ProtobufUtil.toScan(Scan scan) Convert a client Scan to a protocol buffer Scan

Uses of Scan in org.apache.hadoop.hbase.quotas

Methods in org.apache.hadoop.hbase.quotas that return Scan

Modifier and Type	Method and Description
static Scan	QuotaTableUtil.makeQuotaSnapshotScan() Creates a Scan which returns only quota snapshots from the quota table.
static Scan	QuotaTableUtil.makeQuotaSnapshotScanForTable(TableName tn) Creates a Scan which returns only SpaceQuotaSnapshot from the quota table for a specific table.
static Scan	QuotaTableUtil.makeScan(QuotaFilter filter)

Uses of Scan in org.apache.hadoop.hbase.shaded.protobuf

Methods in org.apache.hadoop.hbase.shaded.protobuf that return Scan

Modifier and Type	Method and Description
static Scan	ProtobufUtil.toScan(org.apache.hadoop.hbase.shaded.protobuf.generated.ClientProtos.Scan proto) Convert a protocol buffer Scan to a client Scan

Methods in org.apache.hadoop.hbase.shaded.protobuf with parameters of type Scan

Modifier and Type	Method and Description
static org.apache.hadoop.hbase.shaded.protobuf.generated.ClientProtos.ScanRequest	RequestConverter.buildScanRequest(byte[] regionName, Scan scan, int numberOfRows, boolean closeScanner) Create a protocol buffer ScanRequest for a client Scan
static org.apache.hadoop.hbase.shaded.protobuf.generated.ClientProtos.Scan	ProtobufUtil.toScan(Scan scan) Convert a client Scan to a protocol buffer Scan