org.pentaho.reporting.libraries.formula.typing.sequence

Class AnyNumberSequence

java.lang.Object

org.pentaho.reporting.libraries.formula.typing.sequence.AnySequence

org.pentaho.reporting.libraries.formula.typing.sequence.AnyNumberSequence

All Implemented Interfaces:

NumberSequence, Sequence

public class AnyNumberSequence
extends AnySequence
implements NumberSequence

A sequence that treats text-values as valid numbers that always evaluate to zero. Logical values are treated as numbers as well and always evaluate to 0 for false and 1 for true.

Author:

Cedric Pronzato

Constructor Summary

Constructors

Constructor and Description
AnyNumberSequence(AnySequence anySequence)
AnyNumberSequence(ArrayCallback array, FormulaContext context) Number sequence bounded to an array.
AnyNumberSequence(FormulaContext context) Empty number sequence.
AnyNumberSequence(LValue n, FormulaContext context) Number sequence bounded to only one number item.

Method Summary

Modifier and Type	Method and Description
protected boolean	isValidNext(LValue o)
Number	nextNumber()

Methods inherited from class org.pentaho.reporting.libraries.formula.typing.sequence.AnySequence

getArray, getColumnCursor, getContext, getRowCursor, getSingle, hasNext, next, nextRawValue

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface org.pentaho.reporting.libraries.formula.typing.Sequence

hasNext, next, nextRawValue

Constructor Detail

AnyNumberSequence

public AnyNumberSequence(FormulaContext context)

Empty number sequence.

AnyNumberSequence

public AnyNumberSequence(LValue n,
                         FormulaContext context)

Number sequence bounded to only one number item.

Parameters:

n - A number

AnyNumberSequence

public AnyNumberSequence(ArrayCallback array,
                         FormulaContext context)

Number sequence bounded to an array.

Parameters:

array -

AnyNumberSequence

public AnyNumberSequence(AnySequence anySequence)

Method Detail

isValidNext

protected boolean isValidNext(LValue o)
                       throws EvaluationException

Overrides:

isValidNext in class AnySequence

Throws:

EvaluationException

nextNumber

public Number nextNumber()
                  throws EvaluationException

Specified by:

nextNumber in interface NumberSequence

Throws:

EvaluationException