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Triples in the Resource Index
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h2. Triples in the Resource Index
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{column:width=80%}The resource index stores system and user-controlled metadata about each object in the repository in the form of RDF triples. The number and type of triples stored depends on the content of the object. This document describes the triples that may exist in the resource index for a given object. The color of each row indicates how many of each kind of RDF triple can be expected. See the key on the right.
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Namespaces Used
For brevity, the URIs used in this document are shown in abbreviated form. To determine the unabbreviated form of any such URI, replace the Prefix with the associated Namespace URI below.
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{column} {section} h2. Namespaces Used For brevity, the URIs used in this document are shown in abbreviated form. To determine the unabbreviated form of any such URI, replace the *Prefix* with the associated *Namespace URI* below. {table:border=1|cellspacing=1|cellpadding=4|rules=all} {tr:align=center|bgcolor=#c0c0c0} {td}{*}Prefix{*}{td}{td}{*}Namespace URI{*}{td} {tr}{tr} {td}dc:{td}{td}{nl}[http://purl.org/dc/elements/1.1/]{nl}{td} {tr}{tr} {td}fedora-model:{td}{td}{nl}info:fedora/fedora-system:def/model#{nl}{td} {tr}{tr} {td}fedora-view:{td}{td}{nl}info:fedora/fedora-system:def/view#{nl}{td} {tr}{tr} {td}rdf:{td}{td}{nl}[http://www.w3.org/1999/02/22-rdf-syntax-ns#]{nl}{td} {tr} {table} h2. Breakdown h4. Base Triples The following |
Breakdown
Base Triples
The following triples will exist for any object, irrespective of its Datastream content.
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triples will exist for any object, irrespective of its Datastream content. {table:border=1|cellspacing=1|cellpadding=4|rules=all} {tr:align=center|bgcolor=#c0c0c0} {td}{*}Subject{*}{td}{td}{*}Predicate{*}{td}{td}{*}Object{*}{td}{td}{*}Cardinality{*}{td} {tr}{tr:bgcolor=#90EE90} {td:valign=top}info:fedora/$PID{td}{td}fedora-model:createdDate{td}{td}(date created in UTC){td}{td}Exactly One{td} {tr}{tr:bgcolor=#90EE90} {td:valign=top}info:fedora/$PID{td}{td:valign=top}fedora-view:lastModifiedDate{td}{td:valign=top}(date modified in UTC){td}{td:valign=top}Exactly One{td} {tr}{tr:bgcolor=#90EE90} {td:valign=top}info:fedora/$PID{td}{td:valign=top}fedora-model:state{td}{td:valign=top}fedora-model:Active \\ fedora-model:Inactive \\ fedora-model:Deleted{td}{td:valign=top}Exactly One{td} {tr}{tr:bgcolor=#90EE90} {td:valign=top}info:fedora/$PID{td}{td:valign=top}fedora-model:owner{td}{td:valign=top}(not used){td}{td:valign=top}Exactly One{td} {tr}{tr:bgcolor=#90EE90} {td:valign=top}info:fedora/$PID{td}{td:valign=top}fedora-model:label{td}{td:valign=top}(any string){td}{td:valign=top}Exactly One{td} {tr} {table} h4. |
Dublin
...
Core
...
Triples
...
Every
...
object
...
in
...
Fedora
...
has
...
a
...
Dublin
...
Core
...
("DC")
...
Datastream.
...
The
...
following
...
triples
...
are
...
derived
...
from
...
its
...
content,
...
which
...
may
...
consist
...
of
...
any
...
number
...
of
...
each
...
of
...
the
...
15
...
unqualified
...
Dublin
...
Core
...
elements.
...
If
...
unprovided
...
at
...
ingest,
...
the
...
DC
...
Datastream
...
will
...
be
...
automatically
...
created
...
with
...
minimal
...
information
...
(a
...
dc:title
...
and
...
a
...
dc:identifier
...
).
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{table:border=1|cellspacing=1|cellpadding=4|rules=all} {tr:align=center|bgcolor=#c0c0c0} {td}{*}Subject{*}{td}{td}{*}Predicate{*}{td}{td}{*}Object{*}{td}{td}{*}Cardinality{*}{td} {tr}{tr:bgcolor=#FFCC99} {td}info:fedora/$PID{td}{td}dc:title{td}{td}(any string){td}{td}One or More{td} {tr}{tr:bgcolor=#FFCC99} {td}info:fedora/$PID{td}{td}dc:identifier{td}{td}(any string){td}{td}One or More{td} {tr}{tr:bgcolor=#ffff00} {td}info:fedora/$PID{td}{td}(any other dc predicate){td}{td}(any string){td}{td}Zero or More{td} {tr} {table} h4. |
RELS-EXT
...
and
...
RELS-INT Triples
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Triples {table:border=1|cellspacing=1|cellpadding=4|rules=all} {tr:align=center|bgcolor=#c0c0c0} {td}{*}Subject{*}{td}{td}{*}Predicate{*}{td}{td}{*}Object{*}{td}{td}{*}Cardinality{*}{td} {tr}{tr:bgcolor=#ffff00} {td}info:fedora/$PID{td}{td}(any non-reserved predicate){td}{td}(any URI or literal){td}{td}Zero or More{td} {tr} {table} h4. |
Content
...
Model
...
Architecture
...
Triples
...
Note:
...
If
...
not
...
explicitly
...
provided
...
the
...
Fedora
...
Repository
...
will
...
assume
...
there
...
is
...
a
...
fedora-model:hasModel
...
relation
...
asserted
...
from
...
a
...
Data
...
Object
...
to
...
a
...
system-supplied
...
base
...
CModel
...
Object
...
satisfying
...
the
...
cardinality
...
constraint.
...
This
...
relation
...
should
...
be
...
explicitly
...
stated
...
in
...
the
...
REL-EXT
...
Datastream
...
as
...
a
...
recommended
...
practice.
...
Also
...
note
...
that,
...
while
...
CModel,
...
SDef,
...
and
...
SDep
...
objects
...
may
...
be
...
created
...
without
...
asserting
...
their
...
respective
...
relations,
...
they
...
will
...
not
...
perform
...
their
...
functions
...
without
...
them.
...
Note:
...
In
...
Fedora
...
3.0,
...
though
...
permitted,
...
it
...
is
...
not
...
recommended
...
that
...
one
...
SDep
...
object
...
be
...
used
...
to
...
deploy
...
a
...
service
...
for
...
more
...
than
...
one
...
CModel-SDef
...
pair.
...
Future
...
versions
...
of
...
Fedora
...
are
...
likely
...
to
...
provide
...
better
...
support
...
for
...
this
...
configuration.
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{table:border=1|cellspacing=1|cellpadding=4|rules=all} {tr:align=center|bgcolor=#c0c0c0} {td}{*}Subject{*}{td}{td}{*}Predicate{*}{td}{td}{*}Object{*}{td}{td}{*}Cardinality{*}{td} {tr}{tr:bgcolor=#FFCC99} {td}info:fedora/$PID{td}{td}fedora-model:hasModel{td}{td}info:fedora/$CMODEL_PID{td}{td}One or More{td} {tr}{tr:bgcolor=#ffff00} {td}info:fedora/$CMODEL_PID{td}{td}fedora-model:hasService{td}{td}info:fedora/$SDEF_PID{td}{td}Zero or More{td} {tr}{tr:bgcolor=#ffff00} {td}info:fedora/$SDEP_PID{td}{td}fedora-model:isDeploymentOf{td}{td}info:fedora/$SDEF_PID{td}{td}Zero or More{td} {tr}{tr:bgcolor=#ffff00} {td}info:fedora/$SDEP_PID{td}{td}fedora-model:isContractorOf{td}{td}info:fedora/$CMODEL_PID{td}{td}Zero or More{td} {tr} {table} h4. |
Datastream Triples
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Triples {table:border=1|cellspacing=1|cellpadding=4|rules=all} {tr:align=center|bgcolor=#c0c0c0} {td}{*}Subject{*}{td}{td}{*}Predicate{*}{td}{td}{*}Object{*}{td}{td}{*}Cardinality{*}{td} {tr}{tr:bgcolor=#90EE90} {td:valign=top}info:fedora/$PID{td}{td:valign=top}fedora-view:disseminates{td}{td:valign=top}info:fedora/$PID/$DSID{td}{td:valign=top}Exactly One{td} {tr}{tr:bgcolor=#90EE90} {td:valign=top}info:fedora/$PID/$DSID{td}{td:valign=top}fedora-view:disseminationType{td}{td:valign=top}info:fedora/*/$DSID{td}{td:valign=top}Exactly One{td} {tr}{tr:bgcolor=#90EE90} {td:valign=top}info:fedora/$PID/$DSID{td}{td:valign=top}fedora-view:mimeType{td}{td:valign=top}(any mime type string){td}{td:valign=top}Exactly One{td} {tr}{tr:bgcolor=#90EE90} {td:valign=top}info:fedora/$PID/$DSID{td}{td:valign=top}fedora-view:lastModifiedDate{td}{td:valign=top}(date modified in UTC){td}{td:valign=top}Exactly One{td} {tr}{tr:bgcolor=#90EE90} {td:valign=top}info:fedora/$PID/$DSID{td}{td:valign=top}fedora-model:state{td}{td:valign=top}fedora-model:Active \\ fedora-model:Inactive \\ fedora-model:Deleted{td}{td:valign=top}Exactly One{td} {tr}{tr:bgcolor=#90EE90} {td:valign=top}info:fedora/$PID/$DSID{td}{td:valign=top}fedora-view:isVolatile{td}{td:valign=top}(true if R or E, false if M or X){td}{td:valign=top}Exactly One{td} {tr} {table} h2. * |
Calculating
...
Triples/Object
...
You
...
can
...
use
...
the
...
following
...
table
...
to
...
estimate
...
the
...
number
...
of
...
triples
...
for
...
each
...
kind
...
of
...
object
...
in
...
your
...
Fedora
...
repository.
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{table:border=1|cellspacing=1|cellpadding=4|rules=all} {tr:align=center|bgcolor=#c0c0c0} {td}{*}Calculation Method{*}{td}{td}*\# Triples{*}{td} {tr}{tr:bgcolor=#ffffff} {td} Every object automatically gets the following triples: * Base: *6* * Dublin Core (dc:title and dc:identifier): *2* * Content Model Architecture (fedora-model:hasContentModel): *1* * Datastream Triples (for DC): *6* {td}{td:align=center}{*}15{*}{td} {tr}{tr:bgcolor=#ffffff} {td}If the DC datastream has any elements besides the standard dc:title and dc:identifier, *add 1* for each additional element.{td}{td} {td} {tr}{tr:bgcolor=#ffffff} {td}If the object has a RELS-EXT and/or a RELS-INT datastream, *add 7*, then *add 1* for each statement asserted therein (except fedora-model:hasContentModel which has been counted above).{td}{td} {td} {tr}{tr:bgcolor=#ffffff} {td}For each additional datastream, *add 7*.{td}{td} {td} {tr} {table} {include: |
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