org.apache.hadoop.hive.ql.exec.vector.expressions
Class FuncLongToString
java.lang.Object
org.apache.hadoop.hive.ql.exec.vector.expressions.VectorExpression
org.apache.hadoop.hive.ql.exec.vector.expressions.FuncLongToString
- All Implemented Interfaces:
- Serializable
- Direct Known Subclasses:
- FuncBin, FuncHex
public abstract class FuncLongToString
- extends VectorExpression
Superclass to support vectorized functions that take a long
and return a string, optionally with additional configuraiton arguments.
Used for bin(long), hex(long) etc.
- See Also:
- Serialized Form
evaluate
public void evaluate(VectorizedRowBatch batch)
- Description copied from class:
VectorExpression
- This is the primary method to implement expression logic.
- Specified by:
evaluate
in class VectorExpression
getOutputColumn
public int getOutputColumn()
- Description copied from class:
VectorExpression
- Returns the index of the output column in the array
of column vectors. If not applicable, -1 is returned.
- Specified by:
getOutputColumn
in class VectorExpression
- Returns:
- Index of the output column
getOutputCol
public int getOutputCol()
setOutputCol
public void setOutputCol(int outputCol)
getInputCol
public int getInputCol()
setInputCol
public void setInputCol(int inputCol)
getOutputType
public String getOutputType()
- Description copied from class:
VectorExpression
- Returns type of the output column.
- Overrides:
getOutputType
in class VectorExpression
getDescriptor
public VectorExpressionDescriptor.Descriptor getDescriptor()
- Specified by:
getDescriptor
in class VectorExpression
Copyright © 2014 The Apache Software Foundation. All rights reserved.