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

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

All Implemented Interfaces:

Serializable, Cloneable, Expression

Deprecated. This can be done easier with a formula.

public class ColumnDifferenceExpression
extends ColumnAggregationExpression

Computes the difference between the given column values. This is almost the same as the formula [field1] - [field2] - field[3] - .. - [fieldn]. Values that are non-numeric or null are ignored.

Author:

Thomas Morgner

See Also:

Serialized Form

Constructor Summary

ColumnDifferenceExpression()
Deprecated. Default Constructor.

Method Summary

Object

getValue() Deprecated. Return the current expression value.

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

getField, getField, getFieldCount, getInstance, setField, setField

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

clone, getDataRow, getDependencyLevel, 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

ColumnDifferenceExpression

public ColumnDifferenceExpression()

Deprecated.

Default Constructor.

Method Detail

getValue

public Object getValue()

Deprecated.

Return the current expression value.

Returns:

the value of the function.