org.apache.hadoop.hive.ql.exec.vector.expressions
Class StringTrim

java.lang.Object
  org.apache.hadoop.hive.ql.exec.vector.expressions.VectorExpression
      org.apache.hadoop.hive.ql.exec.vector.expressions.StringUnaryUDFDirect
          org.apache.hadoop.hive.ql.exec.vector.expressions.StringTrim

All Implemented Interfaces:

Serializable

public class StringTrim
extends StringUnaryUDFDirect

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.hadoop.hive.ql.exec.vector.expressions.VectorExpression

VectorExpression.Type

Field Summary

Fields inherited from class org.apache.hadoop.hive.ql.exec.vector.expressions.VectorExpression

childExpressions, inputTypes, outputType

Constructor Summary

StringTrim()

StringTrim(int inputColumn, int outputColumn)

Method Summary

protected void

func(BytesColumnVector outV, byte[][] vector, int[] start, int[] length, int i) TRIM element i of the vector, eliminating blanks from the left and right sides of the string, and place the result in outV.

Methods inherited from class org.apache.hadoop.hive.ql.exec.vector.expressions.StringUnaryUDFDirect

evaluate, getDescriptor, getInputColumn, getOutputColumn, getOutputType, setInputColumn, setOutputColumn

Methods inherited from class org.apache.hadoop.hive.ql.exec.vector.expressions.VectorExpression

evaluateChildren, getChildExpressions, getInputTypes, setChildExpressions, setInputTypes, setOutputType, toString

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

StringTrim

public StringTrim(int inputColumn,
                  int outputColumn)

StringTrim

public StringTrim()

Method Detail

func

protected void func(BytesColumnVector outV,
                    byte[][] vector,
                    int[] start,
                    int[] length,
                    int i)

TRIM element i of the vector, eliminating blanks from the left and right sides of the string, and place the result in outV. Operate on the data in place, and set the output by reference to improve performance. Ignore null handling. That will be handled separately.

Specified by:

func in class StringUnaryUDFDirect