org.apache.sysds.runtime.controlprogram.caching

Class FrameObject

java.lang.Object

org.apache.sysds.runtime.instructions.cp.Data

org.apache.sysds.runtime.controlprogram.caching.CacheableData<FrameBlock>

org.apache.sysds.runtime.controlprogram.caching.FrameObject

All Implemented Interfaces:

Serializable

public class FrameObject
extends CacheableData<FrameBlock>

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.sysds.runtime.controlprogram.caching.CacheableData

CacheableData.CacheStatus

Field Summary

Fields inherited from class org.apache.sysds.runtime.controlprogram.caching.CacheableData

cacheEvictionLocalFilePath, cacheEvictionLocalFilePrefix, CACHING_ASYNC_FILECLEANUP, CACHING_BUFFER_PAGECACHE, CACHING_BUFFER_POLICY, CACHING_BUFFER_SIZE, CACHING_COUNTER_GROUP_NAME, CACHING_EVICTION_FILEEXTENSION, CACHING_THRESHOLD, CACHING_WRITE_CACHE_ON_READ

Constructor Summary

Constructors

Constructor and Description
FrameObject(FrameObject fo) Copy constructor that copies meta data but NO data.
FrameObject(String fname)
FrameObject(String fname, MetaData meta)
FrameObject(String fname, MetaData meta, Types.ValueType[] schema)

Method Summary

Modifier and Type	Method and Description
long	getNumColumns()
long	getNumRows()
Types.ValueType[]	getSchema()
Types.ValueType[]	getSchema(int cl, int cu) Obtain schema of value types
Types.ValueType[]	mergeSchemas(FrameObject fo) Creates a new collection which contains the schema of the current frame object concatenated with the schema of the passed frame object.
void	refreshMetaData()
void	setSchema(String schema)
void	setSchema(Types.ValueType[] schema)

Methods inherited from class org.apache.sysds.runtime.controlprogram.caching.CacheableData

acquireModify, acquireRead, acquireReadAndRelease, addBroadcastSize, cleanupCacheDir, cleanupCacheDir, clearData, clearData, disableCaching, enableCaching, enableCleanup, exportData, exportData, exportData, exportData, exportData, exportData, freeEvictedBlob, getBroadcastHandle, getBroadcastSize, getDataCharacteristics, getDataSize, getDebugName, getFedMapping, getFileFormatProperties, getFileName, getGPUObject, getMetaData, getRDDHandle, getStatus, getUniqueID, initCaching, initCaching, isCached, isCachingActive, isCleanupEnabled, isDirty, isFederated, isFederated, isHDFSFileExists, moveData, release, removeMetaData, setBroadcastHandle, setDirty, setEmptyStatus, setFedMapping, setFileFormatProperties, setFileName, setGPUObject, setHDFSFileExists, setMetaData, setRDDHandle, toString

Methods inherited from class org.apache.sysds.runtime.instructions.cp.Data

getDataType, getPrivacyConstraint, getValueType, setPrivacyConstraints, updateDataCharacteristics

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

FrameObject

public FrameObject(String fname)

FrameObject

public FrameObject(String fname,
                   MetaData meta)

FrameObject

public FrameObject(String fname,
                   MetaData meta,
                   Types.ValueType[] schema)

FrameObject

public FrameObject(FrameObject fo)

Copy constructor that copies meta data but NO data.

Parameters:

fo - frame object

Method Detail

getSchema

public Types.ValueType[] getSchema()

getSchema

public Types.ValueType[] getSchema(int cl,
                                   int cu)

Obtain schema of value types

Parameters:

cl - column lower bound, inclusive

cu - column upper bound, inclusive

Returns:

schema of value types

mergeSchemas

public Types.ValueType[] mergeSchemas(FrameObject fo)

Creates a new collection which contains the schema of the current frame object concatenated with the schema of the passed frame object.

Parameters:

fo - frame object

Returns:

schema of value types

setSchema

public void setSchema(String schema)

setSchema

public void setSchema(Types.ValueType[] schema)

refreshMetaData

public void refreshMetaData()

Specified by:

refreshMetaData in class CacheableData<FrameBlock>

getNumRows

public long getNumRows()

Overrides:

getNumRows in class CacheableData<FrameBlock>

getNumColumns

public long getNumColumns()

Overrides:

getNumColumns in class CacheableData<FrameBlock>