Package org.apache.accumulo.core.file

Class FileOperations.OpenReaderOperation

java.lang.Object

org.apache.accumulo.core.file.FileOperations.FileAccessOperation<SubclassType>

org.apache.accumulo.core.file.FileOperations.FileIOOperation<SubclassType>

org.apache.accumulo.core.file.FileOperations.FileReaderOperation<FileOperations.OpenReaderOperation>

org.apache.accumulo.core.file.FileOperations.OpenReaderOperation

All Implemented Interfaces:

FileOperations.FileAccessOperationBuilder<FileOperations.OpenReaderOperationBuilder>, FileOperations.FileIOOperationBuilder<FileOperations.OpenReaderOperationBuilder>, FileOperations.FileReaderOperationBuilder<FileOperations.OpenReaderOperationBuilder>, FileOperations.NeedsFile<FileOperations.OpenReaderOperationBuilder>, FileOperations.NeedsFileSystem<FileOperations.OpenReaderOperationBuilder>, FileOperations.NeedsTableConfiguration<FileOperations.OpenReaderOperationBuilder>, FileOperations.OpenReaderOperationBuilder

Enclosing class:

FileOperations

protected class FileOperations.OpenReaderOperation
extends FileOperations.FileReaderOperation<FileOperations.OpenReaderOperation>
implements FileOperations.OpenReaderOperationBuilder

Operation object for opening a full reader.

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	OpenReaderOperation()

Method Summary

Modifier and Type	Method	Description
FileSKVIterator	build()	Execute the operation, constructing the specified file reader.
boolean	isSeekToBeginning()
FileOperations.OpenReaderOperation	seekToBeginning()	Seek the constructed iterator to the beginning of its domain before returning.
FileOperations.OpenReaderOperation	seekToBeginning(boolean seekToBeginning)	If true, seek the constructed iterator to the beginning of its domain before returning.

Methods inherited from class org.apache.accumulo.core.file.FileOperations.FileReaderOperation

getDataCache, getFileLenCache, getIndexCache, withBlockCache, withDataCache, withFileLenCache, withIndexCache

Methods inherited from class org.apache.accumulo.core.file.FileOperations.FileIOOperation

getRateLimiter, withRateLimiter

Methods inherited from class org.apache.accumulo.core.file.FileOperations.FileAccessOperation

forFile, forFile, getConfiguration, getFilename, getFileSystem, getTableConfiguration, inFileSystem, setConfiguration, setFilename, validate, withTableConfiguration

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.file.FileOperations.FileIOOperationBuilder

withRateLimiter

Methods inherited from interface org.apache.accumulo.core.file.FileOperations.FileReaderOperationBuilder

withBlockCache, withDataCache, withFileLenCache, withIndexCache

Methods inherited from interface org.apache.accumulo.core.file.FileOperations.NeedsFile

forFile, forFile

Methods inherited from interface org.apache.accumulo.core.file.FileOperations.NeedsFileSystem

inFileSystem

Methods inherited from interface org.apache.accumulo.core.file.FileOperations.NeedsTableConfiguration

withTableConfiguration

Constructor Detail

OpenReaderOperation

protected OpenReaderOperation()

Method Detail

seekToBeginning

public FileOperations.OpenReaderOperation seekToBeginning()

Seek the constructed iterator to the beginning of its domain before returning. Equivalent to seekToBeginning(true).

Specified by:

seekToBeginning in interface FileOperations.OpenReaderOperationBuilder

seekToBeginning

public FileOperations.OpenReaderOperation seekToBeginning(boolean seekToBeginning)

If true, seek the constructed iterator to the beginning of its domain before returning.

Specified by:

seekToBeginning in interface FileOperations.OpenReaderOperationBuilder

isSeekToBeginning

public boolean isSeekToBeginning()

build

public FileSKVIterator build()
                      throws IOException

Execute the operation, constructing the specified file reader.

Specified by:

build in interface FileOperations.OpenReaderOperationBuilder

Throws:

IOException