src/resources/org/apache/cassandra/cql3/functions/JavaSourceUDF.txt

package org.apache.cassandra.cql3.udf.gen;

import java.nio.ByteBuffer;
import java.util.List;
import com.datastax.driver.core.DataType;
import org.apache.cassandra.cql3.ColumnIdentifier;
import org.apache.cassandra.cql3.functions.FunctionName;
import org.apache.cassandra.cql3.functions.JavaSourceUDFFactory;
import org.apache.cassandra.db.marshal.AbstractType;
import org.apache.cassandra.exceptions.FunctionExecutionException;
import org.apache.cassandra.exceptions.InvalidRequestException;

public final class #class_name# extends org.apache.cassandra.cql3.functions.UDFunction
{
    public #class_name#(FunctionName name, List<ColumnIdentifier> argNames, List<AbstractType<?>> argTypes,
                        DataType[] argDataTypes, AbstractType<?> returnType, DataType returnDataType, boolean calledOnNullInput, String body)
    {
        super(name, argNames, argTypes, argDataTypes, returnType, returnDataType, calledOnNullInput, "java", body);
    }

    protected ByteBuffer executeUserDefined(int protocolVersion, List<ByteBuffer> params) throws InvalidRequestException
    {
        try
        {
            #return_type# result = executeInternal(
#arguments#
            );
            return decompose(protocolVersion, result);
        }
        catch (Throwable t)
        {
            logger.debug("Invocation of function '{}' failed", this, t);
            if (t instanceof VirtualMachineError)
                throw (VirtualMachineError)t;
            throw FunctionExecutionException.create(this, t);
        }
    }

    private #return_type# executeInternal(#argument_list#)
    {
#body#
    }
}