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java.lang.Objectorg.knime.base.node.preproc.filter.row.rowfilter.RowFilter
org.knime.base.node.preproc.filter.row.rowfilter.AttrValueRowFilter
public abstract class AttrValueRowFilter
Super class for all row filters that test an attribute value (like
StringCompareRowFilter
, MissingValueRowFilter
, and
RangeRowFilter
).
Constructor Summary | |
---|---|
(package private) |
AttrValueRowFilter()
Don't use an instance created by this constructor until calling loadSettings and configure. |
protected |
AttrValueRowFilter(String colName,
boolean include)
The super class stores the class name and the include flag for all filters checking the attribute value in some way. |
Method Summary | |
---|---|
DataTableSpec |
configure(DataTableSpec inSpec)
Called when a new DataTableSpec is available. |
protected int |
getColIdx()
|
String |
getColName()
|
boolean |
getInclude()
|
void |
loadSettingsFrom(NodeSettingsRO cfg)
Load your internal settings from the configuration object. |
protected void |
saveSettings(NodeSettingsWO cfg)
Do not call this function - rather call RowFilter.saveSettingsTo(NodeSettingsWO) . |
Methods inherited from class org.knime.base.node.preproc.filter.row.rowfilter.RowFilter |
---|
clone, matches, saveSettingsTo |
Methods inherited from class java.lang.Object |
---|
equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
---|
AttrValueRowFilter()
protected AttrValueRowFilter(String colName, boolean include)
colName
- the name of the column to testinclude
- flag indicating whether to include or exclude matching
rowsMethod Detail |
---|
public DataTableSpec configure(DataTableSpec inSpec) throws InvalidSettingsException
DataTableSpec
is available. The filters can
grab whatever they need from that new config (e.g. a comparator), should
do some error checking (e.g. col number against number of columns) -
throw an InvalidSettingsException
if settings are invalid, and
can return a new table spec according to their settings - if they can. If
a filter cannot tell how it would modify the spec, it should return null.
(Returned table specs are not used right now anyway.)
configure
in class RowFilter
inSpec
- the new spec propagated into the row filter node. Could be
null or empty!
InvalidSettingsException
- if the settings in the row filter are
not compatible with the table spec coming inpublic void loadSettingsFrom(NodeSettingsRO cfg) throws InvalidSettingsException
loadSettingsFrom
in class RowFilter
cfg
- the object holding the settings to load
InvalidSettingsException
- if cfg contains
invalid/incorrect/inconsistent settingsprotected void saveSettings(NodeSettingsWO cfg)
RowFilter.saveSettingsTo(NodeSettingsWO)
. This is just a helper function
for RowFilter.saveSettingsTo(NodeSettingsWO)
. Row filters implement this
and do the work usually done in RowFilter.saveSettingsTo(NodeSettingsWO)
.
The passed config is prepared in a way that the factory will be able to
recreate this object from it.
saveSettings
in class RowFilter
cfg
- object to add the current internal settings topublic String getColName()
protected int getColIdx()
public boolean getInclude()
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