1 |
joko |
1.6 |
############################################ |
2 |
cvsjoko |
1.1 |
# |
3 |
jonen |
1.14 |
# $Id: Tangram.pm,v 1.13 2002/12/05 07:59:04 joko Exp $ |
4 |
joko |
1.2 |
# |
5 |
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# $Log: Tangram.pm,v $ |
6 |
jonen |
1.14 |
# Revision 1.13 2002/12/05 07:59:04 joko |
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# + now using Tie::SecureHash as a base for the COREHANDLE |
8 |
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# + former public COREHANDLE becomes private _COREHANDLE now |
9 |
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# + sub getCOREHANDLE |
10 |
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# |
11 |
joko |
1.13 |
# Revision 1.12 2002/12/04 11:34:49 joko |
12 |
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# - $schema_tangram doesn't have to be in class? |
13 |
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# |
14 |
joko |
1.12 |
# Revision 1.11 2002/12/04 08:54:08 jonen |
15 |
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# + untested bugfix: undef($object) after transform to hash at getObjectAsHash |
16 |
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# |
17 |
jonen |
1.11 |
# Revision 1.10 2002/12/03 15:53:23 joko |
18 |
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# + small bugfix regarding object hierarchy |
19 |
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# |
20 |
joko |
1.10 |
# Revision 1.9 2002/12/03 05:29:40 joko |
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# + sub getObject |
22 |
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# + sub getObjectAsHash |
23 |
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# |
24 |
joko |
1.9 |
# Revision 1.8 2002/12/01 22:25:51 joko |
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# + now utilizing metadata from storage locator when connecting to DBI in "raw"-mode |
26 |
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# |
27 |
joko |
1.8 |
# Revision 1.7 2002/12/01 04:46:19 joko |
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# + sub eraseAll |
29 |
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# |
30 |
joko |
1.7 |
# Revision 1.6 2002/11/29 05:02:30 joko |
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# - sub getNewPerlObjectByPkgName (moved to libp.pm) |
32 |
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# + sub getMetaInfo |
33 |
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# - sub existsChildNode (moved to Abstract.pm) |
34 |
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# + sub getListUnfiltered |
35 |
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# + sub getListFiltered |
36 |
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# + sub createCursor |
37 |
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# + sub createSet |
38 |
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# + sub sendQuery |
39 |
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# |
40 |
joko |
1.6 |
# Revision 1.5 2002/11/17 06:35:18 joko |
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# + locator metadata can now be reached via ->{locator} |
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# - getChildNodes is now wrapped via COREHANDLE |
43 |
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# |
44 |
joko |
1.5 |
# Revision 1.4 2002/10/25 11:44:44 joko |
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# + sub _initSchema |
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# + sub existsChildNode |
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# + sub testIntegrity |
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# + sub rebuildDbAndSchema |
49 |
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# |
50 |
joko |
1.4 |
# Revision 1.3 2002/10/17 03:56:55 joko |
51 |
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# + bugfix: trapped eval error |
52 |
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# |
53 |
joko |
1.3 |
# Revision 1.2 2002/10/17 00:10:05 joko |
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# + removed dependency from tsobj.pm, schema is now independent |
55 |
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# + sub getNewPerlObjectByPkgName |
56 |
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# + sub deploySchema |
57 |
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# + sub retreatSchema |
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# |
59 |
joko |
1.2 |
# Revision 1.1 2002/10/10 03:44:07 cvsjoko |
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# + new |
61 |
cvsjoko |
1.1 |
# |
62 |
joko |
1.6 |
############################################ |
63 |
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64 |
cvsjoko |
1.1 |
|
65 |
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package Data::Storage::Handler::Tangram; |
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use strict; |
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use warnings; |
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70 |
joko |
1.13 |
use base ("Data::Storage::Handler"); |
71 |
cvsjoko |
1.1 |
use base ("Data::Storage::Handler::Abstract"); |
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73 |
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use Tangram; |
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use Data::Dumper; |
75 |
joko |
1.6 |
use libp qw( getNewPerlObjectByPkgName ); |
76 |
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use Data::Storage::Result::Tangram; |
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use Data::Compare::Struct qw( isEmpty ); |
78 |
joko |
1.9 |
use Data::Transform::Deep qw( var_deref ); |
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use Data::Transform::Encode qw( var2utf8 ); |
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81 |
cvsjoko |
1.1 |
|
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# get logger instance |
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my $logger = Log::Dispatch::Config->instance; |
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86 |
joko |
1.12 |
# this holds the complete instantiated schema from tangram |
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my $schema_tangram; |
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89 |
joko |
1.6 |
sub getMetaInfo { |
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my $self = shift; |
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$logger->debug( __PACKAGE__ . "->getMetaInfo()" ); |
92 |
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return { |
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'disconnectMethod' => 'disconnect', |
94 |
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}; |
95 |
joko |
1.2 |
} |
96 |
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97 |
joko |
1.4 |
sub _initSchema { |
98 |
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my $self = shift; |
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$logger->debug( __PACKAGE__ . "->_initSchema()" ); |
100 |
joko |
1.12 |
#if (!$schema_tangram) { |
101 |
joko |
1.5 |
my $obj = getNewPerlObjectByPkgName($self->{locator}->{schema}, { EXPORT_OBJECTS => $self->{locator}->{classnames}, want_transactions => $self->{locator}->{want_transactions} } ); |
102 |
joko |
1.12 |
$schema_tangram = $obj->getSchema(); |
103 |
joko |
1.4 |
#} |
104 |
joko |
1.12 |
if (!$schema_tangram) { |
105 |
joko |
1.4 |
$logger->error( __PACKAGE__ . "->_initSchema: No Schema available for $self->{schema}" ); |
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return 0; |
107 |
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} |
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return 1; |
109 |
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} |
110 |
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111 |
cvsjoko |
1.1 |
sub connect { |
112 |
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113 |
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my $self = shift; |
114 |
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my $dsn = shift; |
116 |
joko |
1.5 |
$dsn ||= $self->{locator}->{dbi}->{dsn}; |
117 |
cvsjoko |
1.1 |
|
118 |
joko |
1.2 |
$logger->debug( __PACKAGE__ . "->connect( dsn $dsn )" ); |
119 |
cvsjoko |
1.1 |
|
120 |
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#my $storage = Tangram::Relational->connect( $schema, $dsn ); |
121 |
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#my $storage = Tangram::mysql->connect( $schema, $dsn ); |
122 |
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#$storage = Tangram::Relational->connect( Project->schema, $dsn ); |
123 |
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124 |
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# if (!testDsn($dsn)) { |
125 |
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# croak("Database at \"$dsn\" is not available"); |
126 |
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# return; |
127 |
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# } |
128 |
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129 |
joko |
1.4 |
return unless $self->_initSchema(); |
130 |
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131 |
joko |
1.6 |
# create the main tangram storage object |
132 |
joko |
1.2 |
#$self->{COREHANDLE} = Tangram::Relational->connect( $schema, $dsn ); |
133 |
joko |
1.13 |
$self->{_COREHANDLE} = Tangram::Relational->connect( $schema_tangram, $dsn ); |
134 |
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135 |
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#print "connect", "\n"; |
136 |
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#my $core = $self->{_COREHANDLE}; |
137 |
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#print Dumper($core); |
138 |
cvsjoko |
1.1 |
|
139 |
joko |
1.6 |
# some attempts for configuring the wrapped underlying dbi..... |
140 |
cvsjoko |
1.1 |
#$self->{STORAGEHANDLE_UNDERLYING} = $self->getUnderlyingStorage(); |
141 |
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#$self->{STORAGEHANDLE_UNDERLYING}->_configureCOREHANDLE(); |
142 |
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#$self->_configureUnderlyingStorage; |
143 |
joko |
1.6 |
|
144 |
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# ..... encapsulation wins! |
145 |
cvsjoko |
1.1 |
$self->configureCOREHANDLE(); |
146 |
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147 |
joko |
1.5 |
$self->{locator}->{status}->{connected} = 1; |
148 |
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149 |
joko |
1.4 |
return 1; |
150 |
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151 |
cvsjoko |
1.1 |
} |
152 |
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153 |
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sub getChildNodes { |
154 |
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155 |
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my $self = shift; |
156 |
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my @nodes; |
157 |
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158 |
joko |
1.4 |
$logger->debug( __PACKAGE__ . "->getChildNodes()" ); |
159 |
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160 |
cvsjoko |
1.1 |
# create new DBI - Data::Storage - object from already connected DBI::db - handle inside the current COREHANDLE |
161 |
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#my $loc = new Data::Storage::Locator( type => "DBI", dbi => { db => $self->{COREHANDLE}->{db} }); |
162 |
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#my $loc = new Data::Storage::Locator( type => "DBI", COREHANDLE => $self->{COREHANDLE}->{db} ); |
163 |
joko |
1.6 |
|
164 |
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# todo: should we retrieve information from the schema here |
165 |
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# rather than poorly getting table names from underlying dbi? |
166 |
cvsjoko |
1.1 |
my $storage = $self->_getSubLayerHandle(); |
167 |
joko |
1.5 |
@nodes = @{$storage->getChildNodes()}; |
168 |
cvsjoko |
1.1 |
#$storage->_configureCOREHANDLE(); |
169 |
joko |
1.5 |
#print "getchildnodes\n"; |
170 |
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#print Dumper($self); |
171 |
cvsjoko |
1.1 |
#if (my $result = $self->sendCommand( 'SHOW TABLES;' ) ) { |
172 |
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173 |
joko |
1.8 |
# TODO: REVIEW |
174 |
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#$storage->disconnect(); |
175 |
cvsjoko |
1.1 |
|
176 |
joko |
1.4 |
$self->{meta}->{childnodes} = \@nodes; |
177 |
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178 |
cvsjoko |
1.1 |
return \@nodes; |
179 |
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180 |
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} |
181 |
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182 |
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183 |
joko |
1.4 |
sub testIntegrity { |
184 |
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185 |
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my $self = shift; |
186 |
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187 |
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$logger->debug( __PACKAGE__ . "->testIntegrity()" ); |
188 |
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189 |
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# 1st test: are there tables? |
190 |
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if (!$self->getChildNodes()) { |
191 |
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$logger->warning( __PACKAGE__ . "->testIntegrity no childnodes exist" ); |
192 |
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return; |
193 |
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} |
194 |
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195 |
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# 2nd test: is there a table named "Tangram"? |
196 |
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if (!$self->existsChildNode("Tangram")) { |
197 |
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$logger->warning( __PACKAGE__ . "->testIntegrity childnode \"Tangram\" doesn't exist" ); |
198 |
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return; |
199 |
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} |
200 |
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201 |
joko |
1.5 |
$self->{locator}->{status}->{integrity} = 1; |
202 |
joko |
1.4 |
return 1; |
203 |
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204 |
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} |
205 |
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206 |
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207 |
cvsjoko |
1.1 |
sub _getSubLayerHandle { |
208 |
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209 |
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my $self = shift; |
210 |
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211 |
joko |
1.4 |
$logger->debug( __PACKAGE__ . "->_getSubLayerHandle()" ); |
212 |
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213 |
cvsjoko |
1.1 |
#print Dumper($self); |
214 |
joko |
1.5 |
|
215 |
cvsjoko |
1.1 |
# hack, make more generic! |
216 |
joko |
1.4 |
if (!$self->{dataStorageLayer}) { |
217 |
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$logger->debug( __PACKAGE__ . "->_getSubLayerHandle() creating new dataStorageLayer" ); |
218 |
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#my $loc = Data::Storage::Locator->new( type => "DBI", dbi => $self->{dbi}, COREHANDLE => $self->{COREHANDLE}->{db} ); |
219 |
joko |
1.5 |
my $loc = Data::Storage::Locator->new( { type => "DBI", dbi => $self->{locator}->{dbi} } ); |
220 |
joko |
1.4 |
$self->{dataStorageLayer} = Data::Storage->new( $loc, { protected => 1 } ); |
221 |
cvsjoko |
1.1 |
#$self->{STORAGE_UNDER_THE_HOOD}->{STORAGEHANDLE}->_configureCOREHANDLE(); |
222 |
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#$self->{STORAGE_UNDER_THE_HOOD}->_configureCOREHANDLE(); |
223 |
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} |
224 |
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225 |
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#print Dumper($self->{STORAGE_UNDER_THE_HOOD}); |
226 |
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227 |
joko |
1.4 |
return $self->{dataStorageLayer}; |
228 |
cvsjoko |
1.1 |
|
229 |
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} |
230 |
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231 |
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sub _configureUnderlyingStorage { |
232 |
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233 |
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my $self = shift; |
234 |
joko |
1.4 |
|
235 |
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$logger->debug( __PACKAGE__ . "->_configureUnderlyingStorage" ); |
236 |
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237 |
cvsjoko |
1.1 |
$self->_configureCOREHANDLE_DBI(); |
238 |
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return; |
239 |
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240 |
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foreach my $key (keys %{$self->{dbi}}) { |
241 |
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my $val = $self->{dbi}->{$key}; |
242 |
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print "entry: $key; $val", "\n"; |
243 |
joko |
1.13 |
$self->{_COREHANDLE}->{db}->{$key} = $val; |
244 |
cvsjoko |
1.1 |
} |
245 |
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#print Dumper($self->{COREHANDLE}->{db}); |
246 |
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} |
247 |
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248 |
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249 |
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sub configureCOREHANDLE { |
250 |
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251 |
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my $self = shift; |
252 |
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253 |
joko |
1.4 |
$logger->debug( __PACKAGE__ . "->configureCOREHANDLE" ); |
254 |
cvsjoko |
1.1 |
|
255 |
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#my $subLayer = $self->_getSubLayerHandle(); |
256 |
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257 |
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# apply configured modifications |
258 |
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if (exists $self->{dbi}->{trace_level} && exists $self->{dbi}->{trace_file}) { |
259 |
joko |
1.13 |
$self->{_COREHANDLE}->{db}->trace($self->{dbi}->{trace_level}, $self->{dbi}->{trace_file}); |
260 |
cvsjoko |
1.1 |
} |
261 |
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if (exists $self->{dbi}->{RaiseError}) { |
262 |
joko |
1.13 |
$self->{_COREHANDLE}->{db}->{RaiseError} = $self->{dbi}->{RaiseError}; |
263 |
cvsjoko |
1.1 |
} |
264 |
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if (exists $self->{dbi}->{PrintError}) { |
265 |
joko |
1.13 |
$self->{_COREHANDLE}->{db}->{PrintError} = $self->{dbi}->{PrintError}; |
266 |
cvsjoko |
1.1 |
} |
267 |
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if (exists $self->{dbi}->{HandleError}) { |
268 |
joko |
1.13 |
$self->{_COREHANDLE}->{db}->{HandleError} = $self->{dbi}->{HandleError}; |
269 |
cvsjoko |
1.1 |
} |
270 |
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271 |
joko |
1.2 |
} |
272 |
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273 |
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sub deploySchema { |
274 |
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my $self = shift; |
275 |
joko |
1.5 |
my $args = shift; |
276 |
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277 |
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my $dsn = $self->{locator}->{dbi}->{dsn}; |
278 |
joko |
1.4 |
|
279 |
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$logger->debug( __PACKAGE__ . "->deploySchema( dsn $dsn )" ); |
280 |
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281 |
joko |
1.2 |
my $ok; |
282 |
joko |
1.8 |
if ( my $dbh = DBI->connect($dsn, '', '', $self->{locator}->{dbi} ) ) { |
283 |
joko |
1.4 |
return unless $self->_initSchema(); |
284 |
joko |
1.12 |
$ok = Tangram::Relational->deploy($schema_tangram, $dbh ); |
285 |
joko |
1.2 |
$dbh->disconnect(); |
286 |
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} |
287 |
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return $ok; |
288 |
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} |
289 |
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290 |
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sub retreatSchema { |
291 |
joko |
1.4 |
|
292 |
joko |
1.2 |
my $self = shift; |
293 |
joko |
1.5 |
my $dsn = $self->{locator}->{dbi}->{dsn}; |
294 |
joko |
1.4 |
|
295 |
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$logger->debug( __PACKAGE__ . "->retreatSchema( dsn $dsn )" ); |
296 |
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297 |
joko |
1.2 |
my $ok; |
298 |
joko |
1.8 |
if ( my $dbh = DBI->connect($dsn, '', '', $self->{locator}->{dbi} ) ) { |
299 |
joko |
1.4 |
|
300 |
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return unless $self->_initSchema(); |
301 |
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302 |
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#use Data::Dumper; print Dumper($self); |
303 |
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$self->{dataStorageLayer}->removeLogDispatchHandler("Tangram11"); |
304 |
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305 |
joko |
1.12 |
$ok = Tangram::Relational->retreat($schema_tangram, $dbh ); |
306 |
joko |
1.8 |
|
307 |
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# answer "$ok=2" means "maybe" for now - we have to patch this to a constant here because... |
308 |
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# - ... Tangram::Relational->retreat doesn't seem to return a valid status |
309 |
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# - possible improvement: |
310 |
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# - test this by checking for count of tables in database |
311 |
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# - problem with this: there may be some left not having been included to the schema |
312 |
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# - maybe better: use "->getChildNodes"? |
313 |
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$ok = 2; |
314 |
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315 |
joko |
1.2 |
$dbh->disconnect(); |
316 |
joko |
1.8 |
|
317 |
joko |
1.2 |
} |
318 |
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return $ok; |
319 |
joko |
1.4 |
} |
320 |
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321 |
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sub rebuildDbAndSchema { |
322 |
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my $self = shift; |
323 |
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$logger->info( __PACKAGE__ . "->rebuildDbAndSchema()" ); |
324 |
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my @results; |
325 |
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326 |
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# sum up results (bool (0/1)) in array |
327 |
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push @results, $self->retreatSchema(); |
328 |
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push @results, $self->{dataStorageLayer}->dropDb(); |
329 |
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push @results, $self->{dataStorageLayer}->createDb(); |
330 |
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push @results, $self->deploySchema(); |
331 |
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332 |
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# scan array for "bad ones" |
333 |
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my $res = 1; |
334 |
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map { |
335 |
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$res = 0 if (!$_); |
336 |
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} @results; |
337 |
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338 |
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return $res; |
339 |
joko |
1.6 |
} |
340 |
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341 |
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sub getListUnfiltered { |
342 |
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my $self = shift; |
343 |
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my $nodename = shift; |
344 |
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my @results; |
345 |
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$logger->debug( __PACKAGE__ . "->getListUnfiltered( nodename => '" . $nodename . "' )" ); |
346 |
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# get set of objects from odbms by object name |
347 |
joko |
1.13 |
my $object_set = $self->{_COREHANDLE}->remote($nodename); |
348 |
|
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@results = $self->{_COREHANDLE}->select($object_set); |
349 |
joko |
1.6 |
return \@results; |
350 |
|
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} |
351 |
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|
352 |
|
|
sub getListFiltered { |
353 |
|
|
my $self = shift; |
354 |
|
|
|
355 |
|
|
# redirect to unfiltered mode |
356 |
|
|
#return $self->getListUnfiltered(@_); |
357 |
|
|
|
358 |
|
|
my $nodename = shift; |
359 |
|
|
my $filters = shift; |
360 |
|
|
my @results; |
361 |
|
|
$logger->debug( __PACKAGE__ . "->getListFiltered( nodename => '" . $nodename . "' )" ); |
362 |
|
|
|
363 |
|
|
#print Dumper($filters); |
364 |
|
|
|
365 |
|
|
my @tfilters; |
366 |
|
|
|
367 |
|
|
foreach my $filter (@$filters) { |
368 |
|
|
|
369 |
|
|
# get filter - TODO: for each filter |
370 |
|
|
#my $filter = $filters->[0]; |
371 |
|
|
|
372 |
|
|
# build filter |
373 |
|
|
my $lexpr = $filter->{key}; |
374 |
|
|
#my $op = $filter->{op}; |
375 |
|
|
my $op = '='; |
376 |
|
|
my $rexpr = $filter->{val}; |
377 |
|
|
my $tight = 100; |
378 |
|
|
|
379 |
|
|
# my $tfilter = Tangram::Filter->new( |
380 |
|
|
# expr => "t1.$lexpr $op '$rexpr'", |
381 |
|
|
# tight => $tight, |
382 |
|
|
# objects => $objects, |
383 |
|
|
# ); |
384 |
|
|
|
385 |
|
|
# HACK: build eval-string (sorry) to get filtered list - please give advice here |
386 |
|
|
push @tfilters, '$remote->{' . $filter->{key} . '}' . " $filter->{op} '$filter->{val}'"; |
387 |
|
|
|
388 |
|
|
} |
389 |
|
|
|
390 |
|
|
my $tfilter = join(' & ', @tfilters); |
391 |
|
|
|
392 |
|
|
# get set of objects from odbms by object name |
393 |
joko |
1.13 |
my $remote = $self->{_COREHANDLE}->remote($nodename); |
394 |
joko |
1.6 |
|
395 |
|
|
# was: |
396 |
|
|
#@results = $self->{COREHANDLE}->select($object_set, $tfilter); |
397 |
|
|
|
398 |
|
|
# is: |
399 |
|
|
# HACK: build eval-string (sorry) to get filtered list - please give advice here |
400 |
joko |
1.13 |
my $evalstring = 'return $self->{_COREHANDLE}->select($remote, ' . $tfilter . ');'; |
401 |
joko |
1.6 |
|
402 |
|
|
# get filtered list/set |
403 |
|
|
@results = eval($evalstring); |
404 |
|
|
die $@ if $@; |
405 |
|
|
|
406 |
|
|
return \@results; |
407 |
|
|
} |
408 |
|
|
|
409 |
|
|
sub createCursor { |
410 |
|
|
my $self = shift; |
411 |
|
|
my $node = shift; |
412 |
joko |
1.13 |
my $cmdHandle = $self->{_COREHANDLE}->cursor($node); |
413 |
joko |
1.6 |
my $result = Data::Storage::Result::Tangram->new( RESULTHANDLE => $cmdHandle ); |
414 |
|
|
return $result; |
415 |
|
|
} |
416 |
|
|
|
417 |
|
|
sub createSet { |
418 |
|
|
my $self = shift; |
419 |
|
|
my @objects = @_; |
420 |
|
|
my $rh = Set::Object->new(); |
421 |
|
|
foreach (@objects) { |
422 |
|
|
#print Dumper($_); |
423 |
|
|
$rh->insert($_) if !isEmpty($_); |
424 |
|
|
} |
425 |
|
|
#print Dumper($rh->members()); |
426 |
|
|
my $result = Data::Storage::Result::Tangram->new( RESULTHANDLE => $rh ); |
427 |
|
|
return $result; |
428 |
|
|
} |
429 |
|
|
|
430 |
|
|
sub sendQuery { |
431 |
|
|
my $self = shift; |
432 |
|
|
my $query = shift; |
433 |
|
|
#my $sql = "SELECT cs FROM $self->{metainfo}->{$descent}->{node} WHERE $self->{metainfo}->{$descent}->{IdentProvider}->{arg}='$self->{entry}->{source}->{ident}';"; |
434 |
|
|
#my $result = $self->{metainfo}->{$descent}->{storage}->sendCommand($sql); |
435 |
|
|
|
436 |
|
|
#print Dumper($query); |
437 |
|
|
|
438 |
|
|
# HACK: special case: querying by id does not translate into a common tangram query |
439 |
|
|
# just load the object by given id(ent) |
440 |
|
|
if ($query->{criterias}->[0]->{key} eq 'id' && $query->{criterias}->[0]->{op} eq 'eq') { |
441 |
|
|
#print "LOAD!!!", "\n"; |
442 |
|
|
#exit; |
443 |
|
|
#return Set::Object->new( $self->{COREHANDLE}->load($query->{criterias}->[0]->{val}) ); |
444 |
|
|
my $ident = $query->{criterias}->[0]->{val}; |
445 |
|
|
#print "load obj", "\n"; |
446 |
|
|
#return $self->createSet() if $ident == 5; |
447 |
joko |
1.13 |
my $object = $self->{_COREHANDLE}->load($ident); |
448 |
joko |
1.6 |
#print "get id", "\n"; |
449 |
joko |
1.13 |
my $oid = $self->{_COREHANDLE}->id($object); |
450 |
joko |
1.6 |
return $self->createSet($object); |
451 |
|
|
#return $self->createSet( $self->{COREHANDLE}->load('300090018') ); |
452 |
|
|
} |
453 |
|
|
|
454 |
|
|
die("This should not be reached for now - redirect to \$self->getListFiltered() here!"); |
455 |
|
|
|
456 |
|
|
# TODO: do a common tangram query here |
457 |
|
|
|
458 |
|
|
my @crits; |
459 |
|
|
foreach (@{$query->{criterias}}) { |
460 |
|
|
my $op = ''; |
461 |
|
|
$op = '=' if lc $_->{op} eq 'eq'; |
462 |
|
|
push @crits, "$_->{key}$op'$_->{val}'"; |
463 |
|
|
} |
464 |
|
|
my $subnodes = {}; |
465 |
|
|
map { $subnodes->{$_}++ } @{$query->{subnodes}}; |
466 |
|
|
# HACK: this is hardcoded ;( expand possibilities! |
467 |
|
|
#my $crit = join(' AND ', @crits); |
468 |
|
|
#my $sql = hash2Sql($query->{node}, $subnodes, 'SELECT', $crit); |
469 |
|
|
#return $self->sendCommand($sql); |
470 |
|
|
#my $h = $self->{COREHANDLE}->remote($query->{node}); |
471 |
|
|
#my $res = $self->{COREHANDLE}->select($h, $h->{); |
472 |
|
|
return $self->createCursor($query->{node}); |
473 |
joko |
1.7 |
} |
474 |
|
|
|
475 |
|
|
sub eraseAll { |
476 |
|
|
my $self = shift; |
477 |
|
|
my $classname = shift; |
478 |
joko |
1.13 |
my $remote = $self->{_COREHANDLE}->remote($classname); |
479 |
|
|
my @objs = $self->{_COREHANDLE}->select($remote); |
480 |
|
|
$self->{_COREHANDLE}->erase(@objs); |
481 |
joko |
1.8 |
} |
482 |
|
|
|
483 |
|
|
sub createDb { |
484 |
|
|
my $self = shift; |
485 |
|
|
my $storage = $self->_getSubLayerHandle(); |
486 |
|
|
return $storage->createDb(); |
487 |
joko |
1.9 |
} |
488 |
|
|
|
489 |
|
|
sub getObject { |
490 |
|
|
my $self = shift; |
491 |
|
|
my $oid = shift; |
492 |
jonen |
1.14 |
my $options = shift; |
493 |
|
|
# TODO: create a deep_unload method |
494 |
|
|
# unload($oid) will only unload object, not deep object hashes |
495 |
|
|
$self->{_COREHANDLE}->unload() if($options->{destroy}); |
496 |
joko |
1.9 |
# TODO: review this |
497 |
|
|
#if (!$self->{COREHANDLE}) { return; } |
498 |
joko |
1.13 |
return $self->{_COREHANDLE}->load($oid); |
499 |
joko |
1.9 |
} |
500 |
|
|
|
501 |
|
|
sub getObjectAsHash { |
502 |
|
|
my $self = shift; |
503 |
|
|
my $oid = shift; |
504 |
|
|
my $options = shift; |
505 |
jonen |
1.14 |
my $obj = $self->getObject($oid, $options); |
506 |
joko |
1.9 |
my $deref = var_deref($obj); |
507 |
|
|
var2utf8($deref) if ($options->{utf8}); |
508 |
jonen |
1.14 |
#$obj->clear_refs; |
509 |
|
|
#$self->{COREHANDLE}->unload($obj) if($options->{destroy}); |
510 |
|
|
#$obj->DESTROY; |
511 |
|
|
#undef($obj) if($options->{destroy}); |
512 |
joko |
1.9 |
return $deref; |
513 |
joko |
1.12 |
} |
514 |
|
|
|
515 |
|
|
sub getSchema { |
516 |
|
|
return $schema_tangram; |
517 |
joko |
1.13 |
} |
518 |
|
|
|
519 |
|
|
sub getCOREHANDLE { |
520 |
|
|
my $self = shift; |
521 |
|
|
return $self->{_COREHANDLE}; |
522 |
cvsjoko |
1.1 |
} |
523 |
|
|
|
524 |
|
|
1; |