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126 .IX Title "Data::Stream::Bulk::DoneFlag 3"
127 .TH Data::Stream::Bulk::DoneFlag 3 "2009-06-26" "perl v5.8.7" "User Contributed Perl Documentation"
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133 Data::Stream::Bulk::DoneFlag \- Implement the \f(CW\*(C`is_done\*(C'\fR method in terms of a
136 .IX Header "SYNOPSIS"
138 \& package Data::Stream::Bulk::Blah;
141 \& with qw(Data::Stream::Bulk::DoneFlag);
144 \& if ( my @more = more() ) {
152 .IX Header "DESCRIPTION"
153 This role implements the \f(CW\*(C`Data::Stream::Bulk\*(C'\fR core \s-1API\s0 in terms of one method
154 (\f(CW\*(C`get_more\*(C'\fR).
156 As a convenience it calls \f(CW\*(C`finished\*(C'\fR when the stream is exhausted, so that
159 This is used by classes like Data::Stream::Bulk::DBI,
160 Data::Stream::Bulk::Callback.
165 Returns the state of the iterator.
168 As long as the iterator is not yet done, calls \f(CW\*(C`get_more\*(C'\fR.
170 If \f(CW\*(C`get_more\*(C'\fR returned a false value instead of an array reference then
171 \&\f(CW\*(C`done\*(C'\fR is set, \f(CW\*(C`finished\*(C'\fR is called, and this \f(CW\*(C`next\*(C'\fR does nothing on
175 A noop by default. Can be overridden if so desired.
176 .SH "REQUIRED_METHODS"
177 .IX Header "REQUIRED_METHODS"
180 Returns the next block of data as an array ref, or a false value if no items