I'm investigating an issue and ran across some suspicious code involving comparison of Date instances using comparison operators. e.g.
def stamp = ... //Date
def offset = ... //Integer
def d = new Date(stamp.time + offset)
if (d < new Date()) {
...
}
This resource indicates the above is equivalent to the following
def stamp = ... //Date
def offset = ... //Integer
def d = new Date(stamp.time + offset)
if (d.compareTo(new Date()) < 0) {
...
}
However, the GDK documentation on Dates only has examples comparing dates using compareTo
, before
, and after
and I seem to recall specifically avoiding using the comparison operators on Dates due to an experience with unexpected results. Are the above two code examples indeed equivalent (that is, can I safely use comparison operators on Dates in Groovy, or should I only use compareTo
, before
, and after
)?
Thanks!
Well if you plug them into the handy GroovyConsole they have the same result.
If I understand the question correctly:
def stamp = Date.parse("MM/dd/yyyy","02/02/2010")
def offset = 1213123123
def d = new Date(stamp.time+offset)
if(d < new Date() ) {
println "before"
}
if(d.compareTo(new Date()) < 0) {
println "before"
}
Prints "before" twice
If I switched the stamp date to 2011 lets say it would not print.