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

Class ColumnReferencePlaceholder

java.lang.Object

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

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

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

All Implemented Interfaces:

Serializable

public class ColumnReferencePlaceholder
extends LeafExpression

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
ColumnReferencePlaceholder(DataType datatype, String id)

Method Summary

Methods

Modifier and Type	Method and Description
boolean	equals(Object obj)
DataType	getDatatype()
String	getId()
DataType	getReturnedDataType() Validates the returned data type of the Expression.
int	hashCode()
void	setDatatype(DataType datatype)
void	setId(String id) Use of set
String	toString()
void	validate() Validates correctness of the Expression

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

clone, getAppliableOperators

Methods inherited from class java.lang.Object

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

Constructor Detail

ColumnReferencePlaceholder

public ColumnReferencePlaceholder(DataType datatype,
                          String id)

Method Detail

getDatatype

public DataType getDatatype()

Returns:

the datatype

setDatatype

public void setDatatype(DataType datatype)

Parameters:

datatype - the datatype to set

getId

public String getId()

Returns:

the id

setId

public void setId(String id)

Use of set

Parameters:

id - the id to set

getReturnedDataType

public DataType getReturnedDataType()
                             throws MalformedExpressionException

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:

MalformedExpressionException

validate

public void validate()
              throws MalformedExpressionException

Description copied from class: Expression

Validates correctness of the Expression

Specified by:

validate in class Expression

Throws:

MalformedExpressionException

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