NAME
Neo4j::Driver::ResultSummary - Details about the result of running a statement
VERSION
version 0.09
SYNOPSIS
use Neo4j::Driver;
my $driver = Neo4j::Driver->new->basic_auth(...);
my $transaction = $driver->session->begin_transaction;
$transaction->{return_stats} = 1;
my $result = $transaction->run('MATCH (a)-[:KNOWS]-(b) RETURN a, b');
my $summary = $result->summary;
# SummaryCounters
my $counters = $summary->counters;
# query information
my $query = $summary->statement->{text};
my $params = $summary->statement->{parameters};
my $plan = $summary->plan;
my @notes = @{ $summary->notifications };DESCRIPTION
The result summary of running a statement. The result summary can be used to investigate details about the result, like the Neo4j server version, how many and which kinds of updates have been executed, and query plan information if available.
The Perl driver does not currently provide ServerInfo as part of the result summary. Use Neo4j::Driver::Session to obtain this information instead.
METHODS
Neo4j::Driver::ResultSummary implements the following methods.
counters
my $summary_counters = $summary->counters;Returns the SummaryCounters with statistics counts for operations the statement triggered.
notifications
use Data::Dumper;
print Dumper $summary->notifications;A list of notifications that might arise when executing the statement. Notifications can be warnings about problematic statements or other valuable information that can be presented in a client. Unlike failures or errors, notifications do not affect the execution of a statement.
plan
use Data::Dumper;
print Dumper $summary->plan;This describes how the database will execute your statement. Available if this is the summary of a Cypher EXPLAIN statement.
statement
my $query = $summary->statement->{text};
my $params = $summary->statement->{parameters};The statement and parameters this summary is for.
EXPERIMENTAL FEATURES
Neo4j::Driver::ResultSummary implements the following experimental features. These are subject to unannounced modification or removal in future versions. Expect your code to break if you depend upon these features.
Calling in list context
my @notifications = $summary->notifications;The notifications method tries to Do What You Mean if called in list context.
SEE ALSO
Neo4j::Driver, Neo4j::Driver::Session, Neo4j::Driver::SummaryCounters, Neo4j Java Driver, Neo4j JavaScript Driver, Neo4j .NET Driver
AUTHOR
Arne Johannessen <ajnn@cpan.org>
COPYRIGHT AND LICENSE
This software is Copyright (c) 2016-2018 by Arne Johannessen.
This is free software, licensed under:
The Artistic License 2.0 (GPL Compatible)