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Posted to dev@phoenix.apache.org by faisal moeen <fm...@gmail.com> on 2014/05/29 22:56:11 UTC
How to convert double[] to PDataType.DOUBLE_ARRAY?
Hi,
I am writing a custom function which return a double[]. How to do it?
I am doing the following but double[] is not castable to PhoenixArray :
ptr.set( PDataType.DOUBLE_ARRAY.toBytes(mydoubleArray) );
but this throws an exception:
java.lang.ClassCastException: [D cannot be cast to
org.apache.phoenix.schema.PhoenixArray
at org.apache.phoenix.schema.PArrayDataType.toBytes(PArrayDataType.java:54)
at org.apache.phoenix.schema.PDataType$35.toBytes(PDataType.java:4112)
at org.apache.phoenix.schema.PDataType$35.toBytes(PDataType.java:4107)
at
de.tuberlin.dima.hbasealgebra.test.PhoenixTests.testtest(PhoenixTests.java:28)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at
org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:44)
at
org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
at
org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:41)
at
org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:20)
at
org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:28)
at
org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:31)
at
org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:70)
at
org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:44)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:180)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:41)
at org.junit.runners.ParentRunner$1.evaluate(ParentRunner.java:173)
at
org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:28)
at
org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:31)
at org.junit.runners.ParentRunner.run(ParentRunner.java:220)
at
org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:50)
at
org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
at
org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:467)
at
org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683)
at
org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390)
at
org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197)
--
Regards
Faisal Moeen
Re: How to convert double[] to PDataType.DOUBLE_ARRAY?
Posted by James Taylor <ja...@apache.org>.
Based on a cursory look, it seems like either will work, since all you're
doing is converting to bytes anyway.
Thanks,
James
On Thu, May 29, 2014 at 2:52 PM, faisal moeen <fm...@gmail.com> wrote:
> Is it a correction James?
> Because your previous code is working fine as well.
>
> Regards
>
>
> On Thu, May 29, 2014 at 11:44 PM, James Taylor <ja...@apache.org>
> wrote:
>
> > One correction, you need to instantiate the correct kind of array:
> >
> > // Use Apache commons to convert from double[] to Double[]
> > Double[] doubleArray = ArrayUtils.toObject(mydoubleArray);
> > ptr.set( PDataType.DOUBLE_ARRAY.toByte(
> > new PhoenixArray.PrimitiveDoublePhoenixArray(
> > PDataType.DOUBLE, doubleArray) );
> >
> > This could be made simpler.
> >
> > Thanks,
> > James
> >
> >
> >
> >
> > On Thu, May 29, 2014 at 2:29 PM, James Taylor <ja...@apache.org>
> > wrote:
> >
> > > Hi Faisal,
> > > You need to pass through a PhoenixArray to the toBytes method, like
> this:
> > >
> > > // Use Apache commons to convert from double[] to Double[]
> > > Double[] doubleArray = ArrayUtils.toObject(mydoubleArray);
> > > ptr.set( PDataType.DOUBLE_ARRAY.toBytes(new
> > > PhoenixArray(PDataType.DOUBLE, doubleArray) );
> > >
> > > Note that underneath, the Double[] is going to stored as a double[], so
> > > it' be pretty trivial to add new constructors for PhoenixArray that
> take
> > > an array of a primitive type.
> > >
> > > Thanks,
> > > James
> > >
> > >
> > > On Thu, May 29, 2014 at 1:56 PM, faisal moeen <fm...@gmail.com>
> > wrote:
> > >
> > >> Hi,
> > >>
> > >> I am writing a custom function which return a double[]. How to do it?
> > >> I am doing the following but double[] is not castable to PhoenixArray
> :
> > >>
> > >> ptr.set( PDataType.DOUBLE_ARRAY.toBytes(mydoubleArray) );
> > >>
> > >> but this throws an exception:
> > >>
> > >> java.lang.ClassCastException: [D cannot be cast to
> > >> org.apache.phoenix.schema.PhoenixArray
> > >> at
> > >>
> org.apache.phoenix.schema.PArrayDataType.toBytes(PArrayDataType.java:54)
> > >> at org.apache.phoenix.schema.PDataType$35.toBytes(PDataType.java:4112)
> > >> at org.apache.phoenix.schema.PDataType$35.toBytes(PDataType.java:4107)
> > >> at
> > >>
> > >>
> >
> de.tuberlin.dima.hbasealgebra.test.PhoenixTests.testtest(PhoenixTests.java:28)
> > >> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> > >> at
> > >>
> > >>
> >
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
> > >> at
> > >>
> > >>
> >
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> > >> at java.lang.reflect.Method.invoke(Method.java:606)
> > >> at
> > >>
> > >>
> >
> org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:44)
> > >> at
> > >>
> > >>
> >
> org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
> > >> at
> > >>
> > >>
> >
> org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:41)
> > >> at
> > >>
> > >>
> >
> org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:20)
> > >> at
> > >>
> > >>
> >
> org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:28)
> > >> at
> > >>
> > >>
> >
> org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:31)
> > >> at
> > >>
> > >>
> >
> org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:70)
> > >> at
> > >>
> > >>
> >
> org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:44)
> > >> at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:180)
> > >> at org.junit.runners.ParentRunner.access$000(ParentRunner.java:41)
> > >> at org.junit.runners.ParentRunner$1.evaluate(ParentRunner.java:173)
> > >> at
> > >>
> > >>
> >
> org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:28)
> > >> at
> > >>
> > >>
> >
> org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:31)
> > >> at org.junit.runners.ParentRunner.run(ParentRunner.java:220)
> > >> at
> > >>
> > >>
> >
> org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:50)
> > >> at
> > >>
> > >>
> >
> org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
> > >> at
> > >>
> > >>
> >
> org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:467)
> > >> at
> > >>
> > >>
> >
> org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683)
> > >> at
> > >>
> > >>
> >
> org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390)
> > >> at
> > >>
> > >>
> >
> org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197)
> > >>
> > >>
> > >>
> > >> --
> > >>
> > >> Regards
> > >> Faisal Moeen
> > >>
> > >
> > >
> >
>
>
>
> --
>
> Regards
> Faisal Moeen
>
Re: How to convert double[] to PDataType.DOUBLE_ARRAY?
Posted by faisal moeen <fm...@gmail.com>.
Is it a correction James?
Because your previous code is working fine as well.
Regards
On Thu, May 29, 2014 at 11:44 PM, James Taylor <ja...@apache.org>
wrote:
> One correction, you need to instantiate the correct kind of array:
>
> // Use Apache commons to convert from double[] to Double[]
> Double[] doubleArray = ArrayUtils.toObject(mydoubleArray);
> ptr.set( PDataType.DOUBLE_ARRAY.toByte(
> new PhoenixArray.PrimitiveDoublePhoenixArray(
> PDataType.DOUBLE, doubleArray) );
>
> This could be made simpler.
>
> Thanks,
> James
>
>
>
>
> On Thu, May 29, 2014 at 2:29 PM, James Taylor <ja...@apache.org>
> wrote:
>
> > Hi Faisal,
> > You need to pass through a PhoenixArray to the toBytes method, like this:
> >
> > // Use Apache commons to convert from double[] to Double[]
> > Double[] doubleArray = ArrayUtils.toObject(mydoubleArray);
> > ptr.set( PDataType.DOUBLE_ARRAY.toBytes(new
> > PhoenixArray(PDataType.DOUBLE, doubleArray) );
> >
> > Note that underneath, the Double[] is going to stored as a double[], so
> > it' be pretty trivial to add new constructors for PhoenixArray that take
> > an array of a primitive type.
> >
> > Thanks,
> > James
> >
> >
> > On Thu, May 29, 2014 at 1:56 PM, faisal moeen <fm...@gmail.com>
> wrote:
> >
> >> Hi,
> >>
> >> I am writing a custom function which return a double[]. How to do it?
> >> I am doing the following but double[] is not castable to PhoenixArray :
> >>
> >> ptr.set( PDataType.DOUBLE_ARRAY.toBytes(mydoubleArray) );
> >>
> >> but this throws an exception:
> >>
> >> java.lang.ClassCastException: [D cannot be cast to
> >> org.apache.phoenix.schema.PhoenixArray
> >> at
> >> org.apache.phoenix.schema.PArrayDataType.toBytes(PArrayDataType.java:54)
> >> at org.apache.phoenix.schema.PDataType$35.toBytes(PDataType.java:4112)
> >> at org.apache.phoenix.schema.PDataType$35.toBytes(PDataType.java:4107)
> >> at
> >>
> >>
> de.tuberlin.dima.hbasealgebra.test.PhoenixTests.testtest(PhoenixTests.java:28)
> >> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> >> at
> >>
> >>
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
> >> at
> >>
> >>
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> >> at java.lang.reflect.Method.invoke(Method.java:606)
> >> at
> >>
> >>
> org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:44)
> >> at
> >>
> >>
> org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
> >> at
> >>
> >>
> org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:41)
> >> at
> >>
> >>
> org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:20)
> >> at
> >>
> >>
> org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:28)
> >> at
> >>
> >>
> org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:31)
> >> at
> >>
> >>
> org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:70)
> >> at
> >>
> >>
> org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:44)
> >> at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:180)
> >> at org.junit.runners.ParentRunner.access$000(ParentRunner.java:41)
> >> at org.junit.runners.ParentRunner$1.evaluate(ParentRunner.java:173)
> >> at
> >>
> >>
> org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:28)
> >> at
> >>
> >>
> org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:31)
> >> at org.junit.runners.ParentRunner.run(ParentRunner.java:220)
> >> at
> >>
> >>
> org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:50)
> >> at
> >>
> >>
> org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
> >> at
> >>
> >>
> org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:467)
> >> at
> >>
> >>
> org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683)
> >> at
> >>
> >>
> org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390)
> >> at
> >>
> >>
> org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197)
> >>
> >>
> >>
> >> --
> >>
> >> Regards
> >> Faisal Moeen
> >>
> >
> >
>
--
Regards
Faisal Moeen
Re: How to convert double[] to PDataType.DOUBLE_ARRAY?
Posted by James Taylor <ja...@apache.org>.
One correction, you need to instantiate the correct kind of array:
// Use Apache commons to convert from double[] to Double[]
Double[] doubleArray = ArrayUtils.toObject(mydoubleArray);
ptr.set( PDataType.DOUBLE_ARRAY.toByte(
new PhoenixArray.PrimitiveDoublePhoenixArray(
PDataType.DOUBLE, doubleArray) );
This could be made simpler.
Thanks,
James
On Thu, May 29, 2014 at 2:29 PM, James Taylor <ja...@apache.org>
wrote:
> Hi Faisal,
> You need to pass through a PhoenixArray to the toBytes method, like this:
>
> // Use Apache commons to convert from double[] to Double[]
> Double[] doubleArray = ArrayUtils.toObject(mydoubleArray);
> ptr.set( PDataType.DOUBLE_ARRAY.toBytes(new
> PhoenixArray(PDataType.DOUBLE, doubleArray) );
>
> Note that underneath, the Double[] is going to stored as a double[], so
> it' be pretty trivial to add new constructors for PhoenixArray that take
> an array of a primitive type.
>
> Thanks,
> James
>
>
> On Thu, May 29, 2014 at 1:56 PM, faisal moeen <fm...@gmail.com> wrote:
>
>> Hi,
>>
>> I am writing a custom function which return a double[]. How to do it?
>> I am doing the following but double[] is not castable to PhoenixArray :
>>
>> ptr.set( PDataType.DOUBLE_ARRAY.toBytes(mydoubleArray) );
>>
>> but this throws an exception:
>>
>> java.lang.ClassCastException: [D cannot be cast to
>> org.apache.phoenix.schema.PhoenixArray
>> at
>> org.apache.phoenix.schema.PArrayDataType.toBytes(PArrayDataType.java:54)
>> at org.apache.phoenix.schema.PDataType$35.toBytes(PDataType.java:4112)
>> at org.apache.phoenix.schema.PDataType$35.toBytes(PDataType.java:4107)
>> at
>>
>> de.tuberlin.dima.hbasealgebra.test.PhoenixTests.testtest(PhoenixTests.java:28)
>> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>> at
>>
>> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
>> at
>>
>> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
>> at java.lang.reflect.Method.invoke(Method.java:606)
>> at
>>
>> org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:44)
>> at
>>
>> org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
>> at
>>
>> org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:41)
>> at
>>
>> org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:20)
>> at
>>
>> org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:28)
>> at
>>
>> org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:31)
>> at
>>
>> org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:70)
>> at
>>
>> org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:44)
>> at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:180)
>> at org.junit.runners.ParentRunner.access$000(ParentRunner.java:41)
>> at org.junit.runners.ParentRunner$1.evaluate(ParentRunner.java:173)
>> at
>>
>> org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:28)
>> at
>>
>> org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:31)
>> at org.junit.runners.ParentRunner.run(ParentRunner.java:220)
>> at
>>
>> org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:50)
>> at
>>
>> org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
>> at
>>
>> org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:467)
>> at
>>
>> org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683)
>> at
>>
>> org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390)
>> at
>>
>> org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197)
>>
>>
>>
>> --
>>
>> Regards
>> Faisal Moeen
>>
>
>
Re: How to convert double[] to PDataType.DOUBLE_ARRAY?
Posted by faisal moeen <fm...@gmail.com>.
Thanks James.
On Thu, May 29, 2014 at 11:29 PM, James Taylor <ja...@apache.org>
wrote:
> Hi Faisal,
> You need to pass through a PhoenixArray to the toBytes method, like this:
>
> // Use Apache commons to convert from double[] to Double[]
> Double[] doubleArray = ArrayUtils.toObject(mydoubleArray);
> ptr.set( PDataType.DOUBLE_ARRAY.toBytes(new PhoenixArray(PDataType.DOUBLE,
> doubleArray) );
>
> Note that underneath, the Double[] is going to stored as a double[], so it'
> be pretty trivial to add new constructors for PhoenixArray that take an
> array of a primitive type.
>
> Thanks,
> James
>
>
> On Thu, May 29, 2014 at 1:56 PM, faisal moeen <fm...@gmail.com> wrote:
>
> > Hi,
> >
> > I am writing a custom function which return a double[]. How to do it?
> > I am doing the following but double[] is not castable to PhoenixArray :
> >
> > ptr.set( PDataType.DOUBLE_ARRAY.toBytes(mydoubleArray) );
> >
> > but this throws an exception:
> >
> > java.lang.ClassCastException: [D cannot be cast to
> > org.apache.phoenix.schema.PhoenixArray
> > at
> org.apache.phoenix.schema.PArrayDataType.toBytes(PArrayDataType.java:54)
> > at org.apache.phoenix.schema.PDataType$35.toBytes(PDataType.java:4112)
> > at org.apache.phoenix.schema.PDataType$35.toBytes(PDataType.java:4107)
> > at
> >
> >
> de.tuberlin.dima.hbasealgebra.test.PhoenixTests.testtest(PhoenixTests.java:28)
> > at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> > at
> >
> >
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
> > at
> >
> >
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> > at java.lang.reflect.Method.invoke(Method.java:606)
> > at
> >
> >
> org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:44)
> > at
> >
> >
> org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
> > at
> >
> >
> org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:41)
> > at
> >
> >
> org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:20)
> > at
> >
> >
> org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:28)
> > at
> >
> org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:31)
> > at
> >
> >
> org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:70)
> > at
> >
> >
> org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:44)
> > at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:180)
> > at org.junit.runners.ParentRunner.access$000(ParentRunner.java:41)
> > at org.junit.runners.ParentRunner$1.evaluate(ParentRunner.java:173)
> > at
> >
> >
> org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:28)
> > at
> >
> org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:31)
> > at org.junit.runners.ParentRunner.run(ParentRunner.java:220)
> > at
> >
> >
> org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:50)
> > at
> >
> >
> org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
> > at
> >
> >
> org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:467)
> > at
> >
> >
> org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683)
> > at
> >
> >
> org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390)
> > at
> >
> >
> org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197)
> >
> >
> >
> > --
> >
> > Regards
> > Faisal Moeen
> >
>
--
Regards
Faisal Moeen
Re: How to convert double[] to PDataType.DOUBLE_ARRAY?
Posted by James Taylor <ja...@apache.org>.
Hi Faisal,
You need to pass through a PhoenixArray to the toBytes method, like this:
// Use Apache commons to convert from double[] to Double[]
Double[] doubleArray = ArrayUtils.toObject(mydoubleArray);
ptr.set( PDataType.DOUBLE_ARRAY.toBytes(new PhoenixArray(PDataType.DOUBLE,
doubleArray) );
Note that underneath, the Double[] is going to stored as a double[], so it'
be pretty trivial to add new constructors for PhoenixArray that take an
array of a primitive type.
Thanks,
James
On Thu, May 29, 2014 at 1:56 PM, faisal moeen <fm...@gmail.com> wrote:
> Hi,
>
> I am writing a custom function which return a double[]. How to do it?
> I am doing the following but double[] is not castable to PhoenixArray :
>
> ptr.set( PDataType.DOUBLE_ARRAY.toBytes(mydoubleArray) );
>
> but this throws an exception:
>
> java.lang.ClassCastException: [D cannot be cast to
> org.apache.phoenix.schema.PhoenixArray
> at org.apache.phoenix.schema.PArrayDataType.toBytes(PArrayDataType.java:54)
> at org.apache.phoenix.schema.PDataType$35.toBytes(PDataType.java:4112)
> at org.apache.phoenix.schema.PDataType$35.toBytes(PDataType.java:4107)
> at
>
> de.tuberlin.dima.hbasealgebra.test.PhoenixTests.testtest(PhoenixTests.java:28)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at
>
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
> at
>
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> at java.lang.reflect.Method.invoke(Method.java:606)
> at
>
> org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:44)
> at
>
> org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
> at
>
> org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:41)
> at
>
> org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:20)
> at
>
> org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:28)
> at
> org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:31)
> at
>
> org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:70)
> at
>
> org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:44)
> at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:180)
> at org.junit.runners.ParentRunner.access$000(ParentRunner.java:41)
> at org.junit.runners.ParentRunner$1.evaluate(ParentRunner.java:173)
> at
>
> org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:28)
> at
> org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:31)
> at org.junit.runners.ParentRunner.run(ParentRunner.java:220)
> at
>
> org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:50)
> at
>
> org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
> at
>
> org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:467)
> at
>
> org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683)
> at
>
> org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390)
> at
>
> org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197)
>
>
>
> --
>
> Regards
> Faisal Moeen
>