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 <jamestay...@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 <fmorak...@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
>>
>
>
