org.pentaho.reporting.engine.classic.core.function
Class IsNullExpression

java.lang.Object
  org.pentaho.reporting.engine.classic.core.function.AbstractExpression
      org.pentaho.reporting.engine.classic.core.function.IsNullExpression

All Implemented Interfaces:

Serializable, Cloneable, Expression

Deprecated. Use a Formula Instead

public class IsNullExpression
extends AbstractExpression

Checks whether a field contains a NULL value.

Author:

Thomas Morgner

See Also:

Serialized Form

Constructor Summary

IsNullExpression()
Deprecated. Default constructor.

Method Summary

String	getField() Deprecated. Returns the name of the field from where to read the value.
Object	getValue() Deprecated. Return the current expression value.
void	setField(String field) Deprecated. Defines the name of the field from where to read the value.

Methods inherited from class org.pentaho.reporting.engine.classic.core.function.AbstractExpression

clone, getDataRow, getDependencyLevel, getInstance, getName, getReportConfiguration, getResourceBundleFactory, getRuntime, isActive, isDeepTraversing, isPreserve, setActive, setDependencyLevel, setName, setPreserve, setRuntime

Methods inherited from class java.lang.Object

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

Constructor Detail

IsNullExpression

public IsNullExpression()

Deprecated.

Default constructor.

Method Detail

getField

public String getField()

Deprecated.

Returns the name of the field from where to read the value.

Returns:

the field.

setField

public void setField(String field)

Deprecated.

Defines the name of the field from where to read the value.

Parameters:

field - the field.

getValue

public Object getValue()

Deprecated.

Return the current expression value.

The value depends (obviously) on the expression implementation.

Returns:

the value of the function.