org.apache.hadoop.hive.metastore

Class PartFilterExprUtil

java.lang.Object

org.apache.hadoop.hive.metastore.PartFilterExprUtil

public class PartFilterExprUtil
extends Object

Utility functions for working with partition filter expressions

Constructor Summary

Constructors

Constructor and Description
PartFilterExprUtil()

Method Summary

Modifier and Type	Method and Description
static PartitionExpressionProxy	createExpressionProxy(org.apache.hadoop.conf.Configuration conf) Creates the proxy used to evaluate expressions.
static ExpressionTree	makeExpressionTree(PartitionExpressionProxy expressionProxy, byte[] expr, String defaultPartitionName, org.apache.hadoop.conf.Configuration conf)
static ExpressionTree	parseFilterTree(String filter)

Methods inherited from class java.lang.Object

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

Constructor Detail

PartFilterExprUtil

public PartFilterExprUtil()

Method Detail

makeExpressionTree

public static ExpressionTree makeExpressionTree(PartitionExpressionProxy expressionProxy,
                                                byte[] expr,
                                                String defaultPartitionName,
                                                org.apache.hadoop.conf.Configuration conf)
                                         throws MetaException

Throws:

MetaException

createExpressionProxy

public static PartitionExpressionProxy createExpressionProxy(org.apache.hadoop.conf.Configuration conf)

Creates the proxy used to evaluate expressions. This is here to prevent circular dependency - ql -> metastore client <-> metastore server -> ql. If server and client are split, this can be removed.

Parameters:

conf - Configuration.

Returns:

The partition expression proxy.

parseFilterTree

public static ExpressionTree parseFilterTree(String filter)
                                      throws MetaException

Throws:

MetaException