Inheritance diagram for com.sparsity.sparksee.io.TypeLoader:

Public Member Functions
void	RunTwoPhases () throws System.IO.IOException, System.ApplicationException
	Run the loader for two phases loading.

void	RunNPhases (int partitions) throws System.IO.IOException, System.ApplicationException
	Run the loader for N phases loading.

void	SetFrequency (int freq)
	Sets the frequency of listener notification.

void	SetLogOff ()
	Truns off all the error reporting.

void	Run () throws System.IO.IOException, System.ApplicationException
	Run the loader.

void	SetLogError (System.String path) throws System.IO.IOException
	Sets a log error file.

void	SetType (int type)
	Sets the type to be loaded.

void	SetRowReader (com.sparsity.sparksee.io.RowReader rr)
	Sets the input data source.

void	SetAttributePositions (com.sparsity.sparksee.gdb.Int32List attrsPos)
	Sets the list of attribute positions.

void	Register (com.sparsity.sparksee.io.TypeLoaderListener tel)
	Registers a new listener.

void	SetLocale (System.String localeStr)
	Sets the locale that will be used to read the data.

void	SetGraph (com.sparsity.sparksee.gdb.Graph graph)
	Sets the graph where the data will be loaded.

void	SetTimestampFormat (System.String timestampFormat)
	Sets a specific timestamp format.

void	SetAttributes (com.sparsity.sparksee.gdb.AttributeList attrs)
	Sets the list of Attributes.

Detailed Description

Base TypeLoader class.

Base class to load a node or edge type from a graph using a RowReader.

TypeLoaderListener can be registered to receive information about the progress of the load process by means of TypeLoaderEvent. The default frequency of notification to listeners is 100000.

Check out the 'Data import' section in the SPARKSEE User Manual for more details on this.

Author: Sparsity Technologies http://www.sparsity-technologies.com

Member Function Documentation

void com.sparsity.sparksee.io.TypeLoader.Register ( com.sparsity.sparksee.io.TypeLoaderListener tel )

Registers a new listener.

Parameters

tel	TypeLoaderListener to be registered.

void com.sparsity.sparksee.io.TypeLoader.Run ( ) throws System.IO.IOException, System.ApplicationException

Run the loader.

Exceptions

System.IO.IOException	null
System.ApplicationException	null

void com.sparsity.sparksee.io.TypeLoader.RunNPhases ( int partitions ) throws System.IO.IOException, System.ApplicationException

Run the loader for N phases loading.

Firstly load all objects (and create them if necessary) and secondly loads all the attributes. But in this case, attributes are loaded one by one. This way, if there are three attributes, then 4 traverses are necessary.

Working on this mode it is necessary to build a temporary file.

Parameters

partitions [in] Number of horizontal partitions to perform the load.

Exceptions

System.IO.IOException	null
System.ApplicationException	null

void com.sparsity.sparksee.io.TypeLoader.RunTwoPhases ( ) throws System.IO.IOException, System.ApplicationException

Run the loader for two phases loading.

Firstly load all objects (and create them if necessary) and secondly loads all the attributes.

Working on this mode it is necessary to build a temporary file.

Exceptions

System.IO.IOException	null
System.ApplicationException	null

void com.sparsity.sparksee.io.TypeLoader.SetAttributePositions ( com.sparsity.sparksee.gdb.Int32List attrsPos )

Sets the list of attribute positions.

Parameters

attrsPos [in] Attribute positions (column index >=0).

void com.sparsity.sparksee.io.TypeLoader.SetAttributes ( com.sparsity.sparksee.gdb.AttributeList attrs )

Sets the list of Attributes.

Parameters

attrs [in] Attribute identifiers to be loaded

void com.sparsity.sparksee.io.TypeLoader.SetFrequency ( int freq )

Sets the frequency of listener notification.

Parameters

freq	[in] Frequency in number of rows managed to notify progress to all listeners

void com.sparsity.sparksee.io.TypeLoader.SetGraph ( com.sparsity.sparksee.gdb.Graph graph )

Sets the graph where the data will be loaded.

Parameters

graph [in] Graph.

void com.sparsity.sparksee.io.TypeLoader.SetLocale ( System.String localeStr )

Sets the locale that will be used to read the data.

It should match the locale used in the rowreader.

Parameters

localeStr [in] The locale string for the read data. See CSVReader.

void com.sparsity.sparksee.io.TypeLoader.SetLogError ( System.String path ) throws System.IO.IOException

Sets a log error file.

By default errors are thrown as a exception and the load process ends. If a log file is set, errors are logged there and the load process does not stop.

Parameters

path	[in] The path to the error log file.

Exceptions

System.IO.IOException If bad things happen opening the file.

void com.sparsity.sparksee.io.TypeLoader.SetLogOff ( )

Truns off all the error reporting.

The log file will not be created and no exceptions for invalid data will be thrown. If you just want to turn off the logs, but abort at the first error what you should do is not call this method and not set a logError file.

void com.sparsity.sparksee.io.TypeLoader.SetRowReader ( com.sparsity.sparksee.io.RowReader rr )

Sets the input data source.

Parameters

rr	[in] Input RowReader.

void com.sparsity.sparksee.io.TypeLoader.SetTimestampFormat ( System.String timestampFormat )

Sets a specific timestamp format.

Parameters

timestampFormat [in] A string with the timestamp format definition.

void com.sparsity.sparksee.io.TypeLoader.SetType ( int type )

Sets the type to be loaded.

Parameters

type	[in] Type identifier.

Public Member Functions

Detailed Description

Member Function Documentation