.setProperties(map)

[Pierre De Wilde]

Hi,

I am trying to set properties using a map:

Vertex.metaClass.setProperties = { HashMap map ->

  for (entry in map ) {

    _().sideEffect{it.setProperty(entry.getKey(), entry.getValue())}

  }

}

gremlin> g.v(1).setProperties([age:30])                                      

==>null

gremlin> g.v(1).age

==>29

Any idea why property is not set properly?

Thanks,

Pierre

[Marko Rodriguez]

Hi Pierre,

Probably because you don't have >> -1 and you are using 'it' instead of 'delegate' (meta methods).

Also, its not necessary to make this a pipeline expression. Simply do:

Vertex.metaClass.setProperties = { Map map ->

  map.each{k,v -> delegate.setProperty(k,v)}

}

See ya,

Marko.

http://markorodriguez.com

[Pierre De Wilde]

Hi Marko,

gremlin> g = TinkerGraphFactory.createTinkerGraph()

==>tinkergraph[vertices:6 edges:6]

gremlin> Vertex.metaClass.setProperties = { Map map ->

gremlin>   map.each{k,v -> delegate.setProperty(k,v)}

gremlin> }

==>groovysh_evaluate$_run_closure1@16881cb3

gremlin> g.v(1).setProperties([age:30])

==>age=30

gremlin> g.v(1).age

==>29

?

Pierre

[Marko Rodriguez]

Pierre,

Dunno. Play around a bit...

Marko.

http://markorodriguez.com

[Marko Rodriguez]

Hey,

In the short term,

Vertex.metaClass.setProps = { Map map ->

  for(entry in map) {

    delegate.setProperty(entry.key, entry.value);

  }

}

gremlin> g.v(1).setProps([age:31])

==>null

gremlin> g.v(1).age

==>31

* NOTE I believe that setProperties() is reserved for Groovy reflection stuff.

HTH,

Marko.

http://markorodriguez.com

[Pierre De Wilde]

Thanks, Marko. You're the master.

Pierre

[Javid Ahammed]

Hello Pierre/Marko,

gremlin> Vertex.metaClass.setProps = { Map map ->for(entry in map) {delegate.property(entry.key, entry.value);}}
==>groovysh_evaluate$_run_closure1@650aa077
gremlin>  g.V(81924240).setProps([age:31])


No signature of method: org.apache.tinkerpop.gremlin.process.traversal.dsl.graph.DefaultGraphTraversal.setProps() is applicable for argument types: (java.util.LinkedHashMap) values: [[age:31]]
Possible solutions: setGraph(org.apache.tinkerpop.gremlin.structure.Graph), getGraph(), getSteps(), setParent(org.apache.tinkerpop.gremlin.process.traversal.step.TraversalParent)
Display stack trace? [yN]

Any idea what was the wrong thing I am doing?

Regards
Javid

Enter code here...

[Stephen Mallette]

wow - old post....not sure why it's not behaving for you. works for me:

gremlin> Vertex.metaClass.setProps = { Map map ->

gremlin>   for(entry in map) {

gremlin>     delegate.setProperty(entry.key, entry.value);

gremlin>   }

gremlin> }

==>groovysh_evaluate$_run_closure1@401f7633

gremlin> g = new TinkerGraph()

==>tinkergraph[vertices:0 edges:0]

gremlin> g.addVertex()

==>v[0]

gremlin> g.v(0).setProps([age:31])

==>null

gremlin> g.v(0).map

==>{age=31}

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[Javid Ahammed]

Hello Stephen,

Thanks for the reply,

Is it because I am using the latest version of Titan (titan-1.0.0-hadoop1) ?

delegate.setProperty(entry.key, entry.value)

is changed to

 

delegate.property(entry.key, entry.value)

Here is the stackTrace

 g2.V(122884200).setProps([age:31])

No signature of method: org.apache.tinkerpop.gremlin.process.traversal.dsl.graph.DefaultGraphTraversal.setProps() is applicable for argument types: (java.util.LinkedHashMap) values: [[age:31]]

Possible solutions: setGraph(org.apache.tinkerpop.gremlin.structure.Graph), getGraph(), getSteps(), setParent(org.apache.tinkerpop.gremlin.process.traversal.step.TraversalParent)

Display stack trace? [yN] y

groovy.lang.MissingMethodException: No signature of method: org.apache.tinkerpop.gremlin.process.traversal.dsl.graph.DefaultGraphTraversal.setProps() is applicable for argument types: (java.util.LinkedHashMap) values: [[age:31]]

Possible solutions: setGraph(org.apache.tinkerpop.gremlin.structure.Graph), getGraph(), getSteps(), setParent(org.apache.tinkerpop.gremlin.process.traversal.step.TraversalParent)

        at org.codehaus.groovy.runtime.ScriptBytecodeAdapter.unwrap(ScriptBytecodeAdapter.java:56)

        at org.codehaus.groovy.runtime.callsite.PojoMetaClassSite.call(PojoMetaClassSite.java:46)

        at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(CallSiteArray.java:45)

        at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:110)

        at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:122)

        at groovysh_evaluate.run(groovysh_evaluate:3)

        at org.codehaus.groovy.vmplugin.v7.IndyInterface.selectMethod(IndyInterface.java:215)

        at org.codehaus.groovy.tools.shell.Interpreter.evaluate(Interpreter.groovy:69)

        at org.codehaus.groovy.tools.shell.Groovysh.execute(Groovysh.groovy:185)

        at org.codehaus.groovy.tools.shell.Shell.leftShift(Shell.groovy:119)

        at org.codehaus.groovy.tools.shell.ShellRunner.work(ShellRunner.groovy:94)

        at org.codehaus.groovy.tools.shell.InteractiveShellRunner.super$2$work(InteractiveShellRunner.groovy)

        at sun.reflect.GeneratedMethodAccessor32.invoke(Unknown Source)

        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)

        at java.lang.reflect.Method.invoke(Method.java:497)

        at org.codehaus.groovy.reflection.CachedMethod.invoke(CachedMethod.java:90)

        at groovy.lang.MetaMethod.doMethodInvoke(MetaMethod.java:324)

        at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:1207)

        at org.codehaus.groovy.runtime.ScriptBytecodeAdapter.invokeMethodOnSuperN(ScriptBytecodeAdapter.java:130)

        at org.codehaus.groovy.runtime.ScriptBytecodeAdapter.invokeMethodOnSuper0(ScriptBytecodeAdapter.java:150)

        at org.codehaus.groovy.tools.shell.InteractiveShellRunner.work(InteractiveShellRunner.groovy:123)

        at org.codehaus.groovy.tools.shell.ShellRunner.run(ShellRunner.groovy:58)

        at org.codehaus.groovy.tools.shell.InteractiveShellRunner.super$2$run(InteractiveShellRunner.groovy)

        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)

        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)

        at java.lang.reflect.Method.invoke(Method.java:497)

        at org.codehaus.groovy.reflection.CachedMethod.invoke(CachedMethod.java:90)

        at groovy.lang.MetaMethod.doMethodInvoke(MetaMethod.java:324)

        at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:1207)

        at org.codehaus.groovy.runtime.ScriptBytecodeAdapter.invokeMethodOnSuperN(ScriptBytecodeAdapter.java:130)

        at org.codehaus.groovy.runtime.ScriptBytecodeAdapter.invokeMethodOnSuper0(ScriptBytecodeAdapter.java:150)

        at org.codehaus.groovy.tools.shell.InteractiveShellRunner.run(InteractiveShellRunner.groovy:82)

        at org.codehaus.groovy.vmplugin.v7.IndyInterface.selectMethod(IndyInterface.java:215)

        at org.apache.tinkerpop.gremlin.console.Console.<init>(Console.groovy:144)

        at org.codehaus.groovy.vmplugin.v7.IndyInterface.selectMethod(IndyInterface.java:215)

        at org.apache.tinkerpop.gremlin.console.Console.main(Console.groovy:303)

[Jason Plurad]

Javi, how about iterating on the map instead?

gremlin> graph = TinkerGraph.open()

==>tinkergraph[vertices:0 edges:0]

gremlin> g = graph.traversal()
==>graphtraversalsource[tinkergraph[vertices:0 edges:0], standard]
gremlin> v = g.addV().next()
==>v[0]
gremlin> m = ['name':'javid','num':123456]
==>name=javid
==>num=123456
gremlin> m.each{ key, value -> v.property(key, value) }
==>name=javid
==>num=123456
gremlin> v.properties()
==>vp[num->123456]
==>vp[name->javid]

[Stephen Mallette]

still works ok for me with 1.0:

gremlin> Vertex.metaClass.setProps = { Map map ->

gremlin>   for(entry in map) {

gremlin>     delegate.property(entry.key, entry.value)

gremlin>   }

gremlin> }

==>groovysh_evaluate$_run_closure1@6d91790b

gremlin> graph = TitanFactory.open('conf/titan-berkeleyje.properties')

==>standardtitangraph[berkeleyje:/home/smallette/jvm/titan-1.0.0-SNAPSHOT-hadoop1/conf/../db/berkeley]

gremlin> v = graph.addVertex()

==>v[4264]

gremlin> v.setProps([age:31])

==>null

gremlin> graph.tx().commit()

==>null

gremlin> graph.vertices(4264).next().properties()

==>vp[age->31]

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[Javid Ahammed]

Hello Jason,

Thanks a lot ,it worked with map iteration.

Cheers !!!

Regards
Javid