org.gcube.data.analysis.tabulardata.expression.functions

Class Cast

java.lang.Object

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

org.gcube.data.analysis.tabulardata.expression.composite.CompositeExpression

org.gcube.data.analysis.tabulardata.expression.composite.UnaryExpression

org.gcube.data.analysis.tabulardata.expression.functions.Cast

All Implemented Interfaces:

Serializable

public class Cast
extends UnaryExpression

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
Cast(Expression argument, DataType castToType)

Method Summary

Modifier and Type	Method and Description
boolean	equals(Object obj)
DataType	getCastToType()
Operator	getOperator()
DataType	getReturnedDataType() Validates the returned data type of the Expression.
int	hashCode()
static boolean	isCastSupported(DataType sourceType, DataType targetType)
void	setCastToType(DataType castToType)
String	toString()
void	validate() Validates correctness of the Expression

Methods inherited from class org.gcube.data.analysis.tabulardata.expression.composite.UnaryExpression

allowedDataTypes, getArgument, getLeavesByType, setArgument

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

Cast

public Cast(Expression argument,
            DataType castToType)

Method Detail

getCastToType

public DataType getCastToType()

Returns:

the castToType

setCastToType

public void setCastToType(DataType castToType)

Parameters:

castToType - the castToType to set

getOperator

public Operator getOperator()

Specified by:

getOperator in class CompositeExpression

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

toString

public String toString()

Overrides:

toString in class UnaryExpression

hashCode

public int hashCode()

Overrides:

hashCode in class UnaryExpression

equals

public boolean equals(Object obj)

Overrides:

equals in class UnaryExpression

validate

public void validate()
              throws MalformedExpressionException

Description copied from class: Expression

Validates correctness of the Expression

Overrides:

validate in class UnaryExpression

Throws:

MalformedExpressionException

isCastSupported

public static final boolean isCastSupported(DataType sourceType,
                                            DataType targetType)