kiokudb::backend::role::query::simple(3pm) [debian man page]
KiokuDB::Backend::Role::Query::Simple(3pm) User Contributed Perl Documentation KiokuDB::Backend::Role::Query::Simple(3pm)NAME
KiokuDB::Backend::Role::Query::Simple - Simple query api
SYNOPSIS
with qw(KiokuDB::Backend::Role::Query::Simple);
sub simple_search {
my ( $self, $proto ) = @_;
# return all candidate entries in the root set matching fields in $proto
return Data::Stream::Bulk::Foo->new(...);
}
DESCRIPTION
This role requires a "simple_search" method to be implemented.
The method accepts one argument, the hash of the proto to search for.
This is still loosely defined, but the basic functionality is based on attribute matching:
$kiokudb->search({ name => "Mia" });
will search for objects whose "name" attribute contains the string "Mia".
More complex operations will be defined in the future.
perl v5.12.4 2010-10-11 KiokuDB::Backend::Role::Query::Simple(3pm)
Check Out this Related Man Page
KiokuDB::Backend::Role::TXN(3pm) User Contributed Perl Documentation KiokuDB::Backend::Role::TXN(3pm)NAME
KiokuDB::Backend::Role::TXN - Backend level transaction support.
SYNOPSIS
package MyBackend;
use Moose;
with qw(
KiokuDB::Backend
KiokuDB::Backend::Role::TXN
);
sub txn_begin { ... }
sub txn_commit { ... }
sub txn_rollback { ... }
DESCRIPTION
This API is inspired by standard database transactions much like you get with DBI.
This is the low level interface required by "txn_do" in KiokuDB.
OPTIONAL METHODS
txn_do $code, %callbacks
This method should evaluate the code reference in the context of a transaction, inside an "eval". If any errors are caught the
transaction should be aborted, otherwise it should be committed. This is much like "txn_do" in DBIx::Class::Schema.
The "rollback" callback should be fired when the transaction will be aborted.
REQUIRED METHODS
txn_begin [ $parent_txn ]
Begin a new transaction.
This method can return a transaction handle that will later be passed to "txn_commit" or "txn_rollback" as necessary.
The current handle will be passed to nested calls to "txn_begin".
txn_commit $txn
Commit the transaction.
txn_rollback $txn
Rollback the transaction.
perl v5.12.4 2010-10-11 KiokuDB::Backend::Role::TXN(3pm)
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