THIS IS A TEST INSTANCE. ALL YOUR CHANGES WILL BE LOST!!!!
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The component listed below is a looping component; it renders its body a number of times, defined by its start and end parameters (which set the boundaries of the loop). The component can update a result parameter bound to a property of its container; it will automatically count up or down depending on whether start or end is larger.
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package org.example.app.components;
import org.apache.tapestry5.annotations.AfterRender;
import org.apache.tapestry5.annotations.Parameter;
import org.apache.tapestry5.annotations.SetupRender;
public class Count
{
@Parameter (value="1")
private int start;
@Parameter(required = true)
private int end;
@Parameter
private int result;
private boolean increment;
@SetupRender
void initializeValues()
{
result = start;
increment = start < end;
}
@AfterRender
boolean next()
{
if (increment)
{
int newResult = value + 1;
if (newResult <= end)
{
result = newResult;
return false;
}
}
else
{
int newResult= value - 1;
if (newResult>= end)
{
result = newResult;
return false;
}
}
return true;
}
}
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