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java.lang.Objectedu.udo.cs.miningmart.operator.ExecutableOperator
edu.udo.cs.miningmart.operator.ConceptOperator
edu.udo.cs.miningmart.operator.SingleCSOperator
edu.udo.cs.miningmart.operator.Union
This operator provides a UNION of Concepts as part of SQL at the relational level. So far no mapping is supported within the operator.
Field Summary |
Fields inherited from class edu.udo.cs.miningmart.operator.ExecutableOperator |
generatedSQLDefinitions |
Constructor Summary | |
Union()
|
Method Summary | |
java.lang.String |
generateSQLDefinition(java.lang.String selectPart)
This method must return the SQL definition of the newly created ColumnSet. |
java.lang.String |
getDataMode()
Getter for the parameter "DataMode" |
Concept[] |
getTheConcepts()
Getter for the parameter "TheConcepts" |
java.lang.String |
getTypeOfNewColumnSet()
This method must return the entry String for the M4 table "Columnset_t", indicating whether the new Columnset is a view or a table. |
protected boolean |
mustCopyFeature(java.lang.String nameOfFeature)
All output features should have a column of the same type as their corresponding feature in the input concept (unless the input concept's feature was deselected). |
Methods inherited from class edu.udo.cs.miningmart.operator.SingleCSOperator |
generateColumnSetsForOp, generateSQLDefinition, getNewCSName, getTypeOfNewColumnSet |
Methods inherited from class edu.udo.cs.miningmart.operator.ConceptOperator |
compileStatement, createMetadata, createMetadataForOneBA, createSingleColumnSet, createStatement, estimateStatistics, generateColumns, getInputConcept, getNewCSName, getOutputConcept, getStringForSelection, setNewCSMultiStepBranch |
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
public Union()
Method Detail |
public java.lang.String getTypeOfNewColumnSet()
SingleCSOperator
getTypeOfNewColumnSet
in class SingleCSOperator
SingleCSOperator.getTypeOfNewColumnSet()
public java.lang.String generateSQLDefinition(java.lang.String selectPart) throws M4CompilerError
SingleCSOperator
generateSQLDefinition
in class SingleCSOperator
selectPart
- The SQL string between "SELECT" and "FROM" for the
SQL definition to be returned.
M4CompilerError
SingleCSOperator.generateSQLDefinition(String)
protected boolean mustCopyFeature(java.lang.String nameOfFeature) throws M4CompilerError
mustCopyFeature
in class ConceptOperator
nameOfFeature
- Name of the feature in question.
M4CompilerError
ConceptOperator.mustCopyFeature(String)
public Concept[] getTheConcepts() throws M4CompilerError
Concept
objects
M4CompilerError
public java.lang.String getDataMode() throws M4CompilerError
String
objects
DATAMODE_SET
or DATAMODE_BAG
indicating the mode.
M4CompilerError
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