Re: [Neo4j] Relationship indexes
Ok, thanks for pointing that out, I was not aware that it was missing.
Will add the implementation.
Michael
Am 04.12.2011 um 16:57 schrieb Frank:
> Peter:
>
> The function I'm calling isn't implemented. I found it in the source code:
>
> public class RestRelationshipIndex extends RestIndex
> implements RelationshipIndex {
>public RestRelationshipIndex( RestRequest restRequest, String
> indexName, RestAPI restApi ) {
>super( restRequest, indexName, restApi );
>}
>
>public Class getEntityType() {
>return Relationship.class;
>}
>
>public org.neo4j.graphdb.index.IndexHits get( String s,
> Object o, Node node, Node node1 ) {
>throw new UnsupportedOperationException();
>}
>
>public org.neo4j.graphdb.index.IndexHits query( String s,
> Object o, Node node, Node node1 ) {
>throw new UnsupportedOperationException();
>}
>
>public org.neo4j.graphdb.index.IndexHits query( Object o,
> Node node, Node node1 ) {
>throw new UnsupportedOperationException();
>}
>
>@Override
>public boolean isWriteable() {
>return true;
>}
> }
>
> On Sun, Dec 4, 2011 at 9:46 AM, Peter Neubauer [via Neo4j Community
> Discussions] wrote:
>
>> Frank,
>> Do you have a minimal test case reproducing this?
>>
>> /peter
>>
>> Sent from my phone, please excuse typos and autocorrection.
>> On Dec 2, 2011 9:12 PM, "Frank" <[hidden
>> email]>
>> wrote:
>>
>>> Thanks for the reply.
>>>
>>> I *think* that what I need is to do is this:
>>>
>>> Relationship relationship = relationshipIndex.get("signature",
>> signature,
>>> lastNode, null).getSingle();
>>>
>>> If I understand the documentation correctly, this should return only the
>>> relationships attached to the node "lastNode" that have the value I'm
>>> asking for.
>>>
>>> Unfortunately, my attempt to use this function results in the following
>>> exception:
>>>
>>> java.lang.UnsupportedOperationException
>>> at
>>>
>> org.neo4j.rest.graphdb.index.RestRelationshipIndex.get(RestRelationshipIndex.java:42)
>>
>>>
>>> I'm kind of stuck at this point. Any ideas?
>>>
>>> Frank
>>>
>>> On Dec 2, 2011, at 1:59 PM, Peter Neubauer [via Neo4j Community
>>> Discussions] wrote:
>>>
Frank,
Either you could put just some of the rels into the index, or maybe
>> have
>>> an
additional property in the index for the direction?
/peter
Sent from my phone, please excuse typos and autocorrection.
On Dec 2, 2011 8:28 PM, "Frank" <[hidden email]> wrote:
> I'm having some trouble understanding relationship indexes.
>
> I plan to have nodes with many (hundreds, sometimes thousands) of
> relationships to other nodes.
>
> Give node N, I want to be able to quickly locate one of those
>>> relationships
> given a key. I want to consider only the outgoing relationships of
>> that
> node, not all nodes.
>
> Can this be accomplished? The problem I'm seeing is that when I try
>> to
>>> look
> up a relationship from a RelationshipIndex, I don't see how to limit
>>> that
> lookup to just the outgoing relationships of one node.
>
> --
> View this message in context:
>
>>>
>> http://neo4j-community-discussions.438527.n3.nabble.com/Relationship-indexes-tp3555465p3555465.html
> Sent from the Neo4j Community Discussions mailing list archive at
> Nabble.com.
> ___
> Neo4j mailing list
> [hidden email]
> https://lists.neo4j.org/mailman/listinfo/user
>
___
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[hidden email]
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If you reply to this email, your message will be added to the
>> discussion
>>> below:
>>>
>> http://neo4j-community-discussions.438527.n3.nabble.com/Relationship-indexes-tp3555465p323.html
To unsubscribe from Relationship indexes, click here.
NAML
>>>
>>>
>>>
>>> --
>>> View this message in context:
>>>
>> http://neo4j-community-discussions.438527.n3.nabble.com/Relationship-indexes-tp3555465p347.html
>>
>>> Sent from the Neo4j Community Discussions mailing list archive at
>>> Nabble.com.
>>> ___
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>>>
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>>
>>
>> --
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>> To unsubscribe from Rel
Re: [Neo4j] Relationship indexes
Peter:
The function I'm calling isn't implemented. I found it in the source code:
public class RestRelationshipIndex extends RestIndex
implements RelationshipIndex {
public RestRelationshipIndex( RestRequest restRequest, String
indexName, RestAPI restApi ) {
super( restRequest, indexName, restApi );
}
public Class getEntityType() {
return Relationship.class;
}
public org.neo4j.graphdb.index.IndexHits get( String s,
Object o, Node node, Node node1 ) {
throw new UnsupportedOperationException();
}
public org.neo4j.graphdb.index.IndexHits query( String s,
Object o, Node node, Node node1 ) {
throw new UnsupportedOperationException();
}
public org.neo4j.graphdb.index.IndexHits query( Object o,
Node node, Node node1 ) {
throw new UnsupportedOperationException();
}
@Override
public boolean isWriteable() {
return true;
}
}
On Sun, Dec 4, 2011 at 9:46 AM, Peter Neubauer [via Neo4j Community
Discussions] wrote:
> Frank,
> Do you have a minimal test case reproducing this?
>
> /peter
>
> Sent from my phone, please excuse typos and autocorrection.
> On Dec 2, 2011 9:12 PM, "Frank" <[hidden
> email]>
> wrote:
>
> > Thanks for the reply.
> >
> > I *think* that what I need is to do is this:
> >
> > Relationship relationship = relationshipIndex.get("signature",
> signature,
> > lastNode, null).getSingle();
> >
> > If I understand the documentation correctly, this should return only the
> > relationships attached to the node "lastNode" that have the value I'm
> > asking for.
> >
> > Unfortunately, my attempt to use this function results in the following
> > exception:
> >
> > java.lang.UnsupportedOperationException
> >at
> >
> org.neo4j.rest.graphdb.index.RestRelationshipIndex.get(RestRelationshipIndex.java:42)
>
> >
> > I'm kind of stuck at this point. Any ideas?
> >
> > Frank
> >
> > On Dec 2, 2011, at 1:59 PM, Peter Neubauer [via Neo4j Community
> > Discussions] wrote:
> >
> > > Frank,
> > > Either you could put just some of the rels into the index, or maybe
> have
> > an
> > > additional property in the index for the direction?
> > >
> > > /peter
> > >
> > > Sent from my phone, please excuse typos and autocorrection.
> > > On Dec 2, 2011 8:28 PM, "Frank" <[hidden email]> wrote:
> > >
> > > > I'm having some trouble understanding relationship indexes.
> > > >
> > > > I plan to have nodes with many (hundreds, sometimes thousands) of
> > > > relationships to other nodes.
> > > >
> > > > Give node N, I want to be able to quickly locate one of those
> > relationships
> > > > given a key. I want to consider only the outgoing relationships of
> that
> > > > node, not all nodes.
> > > >
> > > > Can this be accomplished? The problem I'm seeing is that when I try
> to
> > look
> > > > up a relationship from a RelationshipIndex, I don't see how to limit
> > that
> > > > lookup to just the outgoing relationships of one node.
> > > >
> > > > --
> > > > View this message in context:
> > > >
> >
> http://neo4j-community-discussions.438527.n3.nabble.com/Relationship-indexes-tp3555465p3555465.html
> > > > Sent from the Neo4j Community Discussions mailing list archive at
> > > > Nabble.com.
> > > > ___
> > > > Neo4j mailing list
> > > > [hidden email]
> > > > https://lists.neo4j.org/mailman/listinfo/user
> > > >
> > > ___
> > > Neo4j mailing list
> > > [hidden email]
> > > https://lists.neo4j.org/mailman/listinfo/user
> > >
> > >
> > > If you reply to this email, your message will be added to the
> discussion
> > below:
> > >
> >
> http://neo4j-community-discussions.438527.n3.nabble.com/Relationship-indexes-tp3555465p323.html
> > > To unsubscribe from Relationship indexes, click here.
> > > NAML
> >
> >
> >
> > --
> > View this message in context:
> >
> http://neo4j-community-discussions.438527.n3.nabble.com/Relationship-indexes-tp3555465p347.html
>
> > Sent from the Neo4j Community Discussions mailing list archive at
> > Nabble.com.
> > ___
> > Neo4j mailing list
> > [hidden email]
> > https://lists.neo4j.org/mailman/listinfo/user
> >
> ___
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> https://lists.neo4j.org/mailman/listinfo/user
>
>
> --
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> below:
>
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> To unsubscribe from Relationship indexes, click
> here
Re: [Neo4j] Relationship indexes
Frank,
Do you have a minimal test case reproducing this?
/peter
Sent from my phone, please excuse typos and autocorrection.
On Dec 2, 2011 9:12 PM, "Frank" wrote:
> Thanks for the reply.
>
> I *think* that what I need is to do is this:
>
> Relationship relationship = relationshipIndex.get("signature", signature,
> lastNode, null).getSingle();
>
> If I understand the documentation correctly, this should return only the
> relationships attached to the node "lastNode" that have the value I'm
> asking for.
>
> Unfortunately, my attempt to use this function results in the following
> exception:
>
> java.lang.UnsupportedOperationException
>at
> org.neo4j.rest.graphdb.index.RestRelationshipIndex.get(RestRelationshipIndex.java:42)
>
> I'm kind of stuck at this point. Any ideas?
>
> Frank
>
> On Dec 2, 2011, at 1:59 PM, Peter Neubauer [via Neo4j Community
> Discussions] wrote:
>
> > Frank,
> > Either you could put just some of the rels into the index, or maybe have
> an
> > additional property in the index for the direction?
> >
> > /peter
> >
> > Sent from my phone, please excuse typos and autocorrection.
> > On Dec 2, 2011 8:28 PM, "Frank" <[hidden email]> wrote:
> >
> > > I'm having some trouble understanding relationship indexes.
> > >
> > > I plan to have nodes with many (hundreds, sometimes thousands) of
> > > relationships to other nodes.
> > >
> > > Give node N, I want to be able to quickly locate one of those
> relationships
> > > given a key. I want to consider only the outgoing relationships of that
> > > node, not all nodes.
> > >
> > > Can this be accomplished? The problem I'm seeing is that when I try to
> look
> > > up a relationship from a RelationshipIndex, I don't see how to limit
> that
> > > lookup to just the outgoing relationships of one node.
> > >
> > > --
> > > View this message in context:
> > >
> http://neo4j-community-discussions.438527.n3.nabble.com/Relationship-indexes-tp3555465p3555465.html
> > > Sent from the Neo4j Community Discussions mailing list archive at
> > > Nabble.com.
> > > ___
> > > Neo4j mailing list
> > > [hidden email]
> > > https://lists.neo4j.org/mailman/listinfo/user
> > >
> > ___
> > Neo4j mailing list
> > [hidden email]
> > https://lists.neo4j.org/mailman/listinfo/user
> >
> >
> > If you reply to this email, your message will be added to the discussion
> below:
> >
> http://neo4j-community-discussions.438527.n3.nabble.com/Relationship-indexes-tp3555465p323.html
> > To unsubscribe from Relationship indexes, click here.
> > NAML
>
>
>
> --
> View this message in context:
> http://neo4j-community-discussions.438527.n3.nabble.com/Relationship-indexes-tp3555465p347.html
> Sent from the Neo4j Community Discussions mailing list archive at
> Nabble.com.
> ___
> Neo4j mailing list
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>
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Re: [Neo4j] Relationship indexes
Thanks for the reply.
I *think* that what I need is to do is this:
Relationship relationship = relationshipIndex.get("signature", signature,
lastNode, null).getSingle();
If I understand the documentation correctly, this should return only the
relationships attached to the node "lastNode" that have the value I'm asking
for.
Unfortunately, my attempt to use this function results in the following
exception:
java.lang.UnsupportedOperationException
at
org.neo4j.rest.graphdb.index.RestRelationshipIndex.get(RestRelationshipIndex.java:42)
I'm kind of stuck at this point. Any ideas?
Frank
On Dec 2, 2011, at 1:59 PM, Peter Neubauer [via Neo4j Community Discussions]
wrote:
> Frank,
> Either you could put just some of the rels into the index, or maybe have an
> additional property in the index for the direction?
>
> /peter
>
> Sent from my phone, please excuse typos and autocorrection.
> On Dec 2, 2011 8:28 PM, "Frank" <[hidden email]> wrote:
>
> > I'm having some trouble understanding relationship indexes.
> >
> > I plan to have nodes with many (hundreds, sometimes thousands) of
> > relationships to other nodes.
> >
> > Give node N, I want to be able to quickly locate one of those relationships
> > given a key. I want to consider only the outgoing relationships of that
> > node, not all nodes.
> >
> > Can this be accomplished? The problem I'm seeing is that when I try to look
> > up a relationship from a RelationshipIndex, I don't see how to limit that
> > lookup to just the outgoing relationships of one node.
> >
> > --
> > View this message in context:
> > http://neo4j-community-discussions.438527.n3.nabble.com/Relationship-indexes-tp3555465p3555465.html
> > Sent from the Neo4j Community Discussions mailing list archive at
> > Nabble.com.
> > ___
> > Neo4j mailing list
> > [hidden email]
> > https://lists.neo4j.org/mailman/listinfo/user
> >
> ___
> Neo4j mailing list
> [hidden email]
> https://lists.neo4j.org/mailman/listinfo/user
>
>
> If you reply to this email, your message will be added to the discussion
> below:
> http://neo4j-community-discussions.438527.n3.nabble.com/Relationship-indexes-tp3555465p323.html
> To unsubscribe from Relationship indexes, click here.
> NAML
--
View this message in context:
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Re: [Neo4j] Relationship indexes
Frank, Either you could put just some of the rels into the index, or maybe have an additional property in the index for the direction? /peter Sent from my phone, please excuse typos and autocorrection. On Dec 2, 2011 8:28 PM, "Frank" wrote: > I'm having some trouble understanding relationship indexes. > > I plan to have nodes with many (hundreds, sometimes thousands) of > relationships to other nodes. > > Give node N, I want to be able to quickly locate one of those relationships > given a key. I want to consider only the outgoing relationships of that > node, not all nodes. > > Can this be accomplished? The problem I'm seeing is that when I try to look > up a relationship from a RelationshipIndex, I don't see how to limit that > lookup to just the outgoing relationships of one node. > > -- > View this message in context: > http://neo4j-community-discussions.438527.n3.nabble.com/Relationship-indexes-tp3555465p3555465.html > Sent from the Neo4j Community Discussions mailing list archive at > Nabble.com. > ___ > Neo4j mailing list > User@lists.neo4j.org > https://lists.neo4j.org/mailman/listinfo/user > ___ Neo4j mailing list User@lists.neo4j.org https://lists.neo4j.org/mailman/listinfo/user
[Neo4j] Relationship indexes
I'm having some trouble understanding relationship indexes. I plan to have nodes with many (hundreds, sometimes thousands) of relationships to other nodes. Give node N, I want to be able to quickly locate one of those relationships given a key. I want to consider only the outgoing relationships of that node, not all nodes. Can this be accomplished? The problem I'm seeing is that when I try to look up a relationship from a RelationshipIndex, I don't see how to limit that lookup to just the outgoing relationships of one node. -- View this message in context: http://neo4j-community-discussions.438527.n3.nabble.com/Relationship-indexes-tp3555465p3555465.html Sent from the Neo4j Community Discussions mailing list archive at Nabble.com. ___ Neo4j mailing list User@lists.neo4j.org https://lists.neo4j.org/mailman/listinfo/user
