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java.lang.Objectorg.knime.core.node.NodeModel
org.knime.base.node.io.database.DBNodeModel
org.knime.base.node.io.database.DBColumnFilterNodeModel
final class DBColumnFilterNodeModel
Field Summary |
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Fields inherited from class org.knime.base.node.io.database.DBNodeModel |
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LOGGER |
Constructor Summary | |
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DBColumnFilterNodeModel()
Creates a new database reader. |
Method Summary | |
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protected PortObjectSpec[] |
configure(PortObjectSpec[] inSpecs)
Configure method for general port types. |
protected PortObject[] |
execute(PortObject[] inData,
ExecutionContext exec)
Execute method for general port types. |
protected void |
loadValidatedSettingsFrom(NodeSettingsRO settings)
Sets new settings from the passed object in the model. |
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 org.knime.base.node.io.database.DBNodeModel |
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createDBQueryConnection, loadInternals, reset, saveInternals |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
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DBColumnFilterNodeModel()
Method Detail |
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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 DBNodeModel
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 DBNodeModel
settings
- The settings to validate.
InvalidSettingsException
- If the validation of the settings
failed.NodeModel.saveSettingsTo(NodeSettingsWO)
,
NodeModel.loadValidatedSettingsFrom(NodeSettingsRO)
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 DBNodeModel
settings
- The settings to read.
InvalidSettingsException
- If a property is not available.NodeModel.saveSettingsTo(NodeSettingsWO)
,
NodeModel.validateSettings(NodeSettingsRO)
protected final PortObject[] execute(PortObject[] inData, ExecutionContext exec) throws CanceledExecutionException, Exception
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.
CanceledExecutionException
protected PortObjectSpec[] configure(PortObjectSpec[] inSpecs) throws InvalidSettingsException
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.
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