org.jfree.report.structure
Class Group
public
class
Group
extends Section
A report group. A group is a repeated section which is bound to an
expression.
Default Behaviour
Whether a new group should be started is evaluated
by the group's expression. If that expression returns Boolean.TRUE, a new
group instance is started. (That expression answers the Questions: 'Does this
group instance end here?').
If the group expression is invalid or there is no group expression at all, a
group will consume all rows until the datasource is no longer advanceable.
Author: David Gilbert Thomas Morgner
public Group()
Constructs a group with no fields, and an empty header and footer.
public Object clone()
public void setGroupingExpression(
Expression groupingExpression)
public String toString()
Returns a string representation of the group (useful for debugging).
Returns: A string.