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java.lang.Objectorg.knime.core.node.NodeModel
org.knime.base.node.preproc.normalize.NormalizerNodeModel
public class NormalizerNodeModel
The NormalizeNodeModel uses the Normalizer to normalize the input DataTable.
Normalizer
Field Summary | |
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(package private) static String |
CFG_MODEL_NAME
The config key under which the model is stored. |
(package private) static String |
CFG_USE_ALL_NUMERIC
Key to store if all numeric columns are used for normalization. |
static String |
COLUMNS_KEY
Key to store the columns to use. |
static int |
DECIMALSCALING_MODE
DECIMAL SCALING mode. |
static int |
MINMAX_MODE
MINMAX mode. |
static String |
MODE_KEY
Key to store the mode. |
static String |
NEWMAX_KEY
Key to store the new maximum value (in min/max mode). |
static String |
NEWMIN_KEY
Key to store the new minimum value (in min/max mode). |
static int |
NONORM_MODE
No Normalization mode. |
static int |
ZSCORE_MODE
ZSCORE mode. |
Constructor Summary | |
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NormalizerNodeModel()
Creates an new normalizer. |
Method Summary | |
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protected PortObjectSpec[] |
configure(PortObjectSpec[] inSpecs)
All IntCell columns are converted to
DoubleCell columns. |
protected PortObject[] |
execute(PortObject[] inData,
ExecutionContext exec)
New normalized DataTable is created depending
on the mode. |
(package private) static String[] |
findAllNumericColumns(DataTableSpec spec)
Finds all numeric columns in spec. |
protected void |
loadInternals(File nodeInternDir,
ExecutionMonitor exec)
Load internals into the derived NodeModel . |
protected void |
loadValidatedSettingsFrom(NodeSettingsRO settings)
Sets new settings from the passed object in the model. |
protected void |
reset()
Override this function in the derived model and reset your NodeModel . |
protected void |
saveInternals(File nodeInternDir,
ExecutionMonitor exec)
Save internals of the derived NodeModel . |
protected void |
saveSettingsTo(NodeSettingsWO settings)
Adds to the given NodeSettings the model specific
settings. |
protected void |
validateSettings(NodeSettingsRO settings)
Validates the settings in the passed NodeSettings object. |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Field Detail |
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public static final String NEWMIN_KEY
public static final String NEWMAX_KEY
public static final String MODE_KEY
public static final String COLUMNS_KEY
public static final int NONORM_MODE
public static final int MINMAX_MODE
public static final int ZSCORE_MODE
public static final int DECIMALSCALING_MODE
static final String CFG_USE_ALL_NUMERIC
static final String CFG_MODEL_NAME
Constructor Detail |
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public NormalizerNodeModel()
Method Detail |
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protected PortObjectSpec[] configure(PortObjectSpec[] inSpecs) throws InvalidSettingsException
IntCell
columns are converted to
DoubleCell
columns.
Configure method for general port types. The argument specs represent the
input object specs and are guaranteed to be subclasses of the
PortObjectSpecs
that are defined through the
PortTypes
given in the
constructor
.
Similarly, the returned output specs need to comply with their port types
spec class (otherwise an error is reported by the framework). They may
also be null.
For a general description of the configure method refer to the
description of the specialized NodeModel.configure(DataTableSpec[])
methods as it addresses more use cases.
configure
in class NodeModel
inSpecs
- The input object specs.
InvalidSettingsException
- If this node can't be configured.static final String[] findAllNumericColumns(DataTableSpec spec)
spec
- input table spec
protected PortObject[] execute(PortObject[] inData, ExecutionContext exec) throws Exception
DataTable
is created depending
on the mode.
Execute method for general port types. The argument objects represent the
input objects and are guaranteed to be subclasses of the
PortObject classes
that are defined through the
PortTypes
given in the
constructor
.
Similarly, the returned output objects need to comply with their port
types object class (otherwise an error is reported by the framework).
For a general description of the execute method refer to the description
of the specialized
NodeModel.execute(BufferedDataTable[], ExecutionContext)
methods as it
addresses more use cases.
execute
in class NodeModel
inData
- The input objects.exec
- For BufferedDataTable
creation and progress.
Exception
- If the node execution fails for any reason.protected void loadInternals(File nodeInternDir, ExecutionMonitor exec) throws IOException, CanceledExecutionException
NodeModel
. This method is
only called if the Node
was executed. Read all your
internal structures from the given file directory to create your internal
data structure which is necessary to provide all node functionalities
after the workflow is loaded, e.g. view content and/or hilite mapping.
loadInternals
in class NodeModel
nodeInternDir
- The directory to read from.exec
- Used to report progress and to cancel the load process.
IOException
- If an error occurs during reading from this dir.
CanceledExecutionException
- If the loading has been canceled.NodeModel.saveInternals(File,ExecutionMonitor)
protected void saveInternals(File nodeInternDir, ExecutionMonitor exec) throws IOException, CanceledExecutionException
NodeModel
. This method is
only called if the Node
is executed. Write all your
internal structures into the given file directory which are necessary to
recreate this model when the workflow is loaded, e.g. view content and/or
hilite mapping.
saveInternals
in class NodeModel
nodeInternDir
- The directory to write into.exec
- Used to report progress and to cancel the save process.
IOException
- If an error occurs during writing to this dir.
CanceledExecutionException
- If the saving has been canceled.NodeModel.loadInternals(File,ExecutionMonitor)
protected void loadValidatedSettingsFrom(NodeSettingsRO settings) throws InvalidSettingsException
#validateSettings(NodeSettings)
method. The model must set
its internal configuration according to the settings object passed.
loadValidatedSettingsFrom
in class NodeModel
settings
- The settings to read.
InvalidSettingsException
- If a property is not available.NodeModel.saveSettingsTo(NodeSettingsWO)
,
NodeModel.validateSettings(NodeSettingsRO)
protected void reset()
NodeModel
. All components should unregister themselves
from any observables (at least from the hilite handler right now). All
internally stored data structures should be released. User settings
should not be deleted/reset though.
reset
in class NodeModel
protected void saveSettingsTo(NodeSettingsWO settings)
NodeSettings
the model specific
settings. The settings don't need to be complete or consistent. If, right
after startup, no valid settings are available this method can write
either nothing or invalid settings.
Method is called by the Node
if the current settings need
to be saved or transfered to the node's dialog.
saveSettingsTo
in class NodeModel
settings
- The object to write settings into.NodeModel.loadValidatedSettingsFrom(NodeSettingsRO)
,
NodeModel.validateSettings(NodeSettingsRO)
protected void validateSettings(NodeSettingsRO settings) throws InvalidSettingsException
NodeSettings
object.
The specified settings should be checked for completeness and
consistency. It must be possible to load a settings object validated
here without any exception in the
#loadValidatedSettings(NodeSettings)
method. The method
must not change the current settings in the model - it is supposed to
just check them. If some settings are missing, invalid, inconsistent, or
just not right throw an exception with a message useful to the user.
validateSettings
in class NodeModel
settings
- The settings to validate.
InvalidSettingsException
- If the validation of the settings
failed.NodeModel.saveSettingsTo(NodeSettingsWO)
,
NodeModel.loadValidatedSettingsFrom(NodeSettingsRO)
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