org.gcube.data.analysis.tabulardata.model.column

Class ColumnReference

java.lang.Object

org.gcube.data.analysis.tabulardata.expression.Expression

org.gcube.data.analysis.tabulardata.expression.leaf.LeafExpression

org.gcube.data.analysis.tabulardata.model.column.ColumnReference

All Implemented Interfaces:

Serializable

Direct Known Subclasses:

TypedColumnReference

public class ColumnReference
extends LeafExpression

See Also:

Serialized Form

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	ColumnReference()
	ColumnReference(TableId tableId, ColumnLocalId columnId)
	ColumnReference(TableId tableId, ColumnLocalId columnId, DataType type)

Method Summary

Methods

Modifier and Type	Method and Description
boolean	equals(Object obj)
ColumnLocalId	getColumnId()
DataType	getReturnedDataType() Validates the returned data type of the Expression.
TableId	getTableId()
DataType	getType()
int	hashCode()
void	setColumnId(ColumnLocalId columnId)
void	setTableId(TableId tableId)
void	setType(DataType type)
String	toString()
void	validate() Validates correctness of the Expression

Methods inherited from class org.gcube.data.analysis.tabulardata.expression.Expression

clone, getAppliableOperators, getExpressionsByCategory

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

ColumnReference

protected ColumnReference()

ColumnReference

public ColumnReference(TableId tableId,
               ColumnLocalId columnId)

ColumnReference

public ColumnReference(TableId tableId,
               ColumnLocalId columnId,
               DataType type)

Method Detail

getTableId

public TableId getTableId()

setTableId

public void setTableId(TableId tableId)

getColumnId

public ColumnLocalId getColumnId()

setColumnId

public void setColumnId(ColumnLocalId columnId)

getType

public DataType getType()

setType

public void setType(DataType type)

hashCode

public int hashCode()

Overrides:

hashCode in class Object

equals

public boolean equals(Object obj)

Overrides:

equals in class Object

toString

public String toString()

Overrides:

toString in class Object

validate

public void validate()
              throws MalformedExpressionException

Description copied from class: Expression

Validates correctness of the Expression

Specified by:

validate in class Expression

Throws:

MalformedExpressionException

getReturnedDataType

public DataType getReturnedDataType()
                             throws NotEvaluableDataTypeException

Description copied from class: Expression

Validates the returned data type of the Expression. Invalid expression may return a wrong datatype

Specified by:

getReturnedDataType in class Expression

Returns:

Throws:

NotEvaluableDataTypeException