org.apache.hadoop.hive.metastore.parser

Class ExpressionTree.TreeNode

java.lang.Object

org.apache.hadoop.hive.metastore.parser.ExpressionTree.TreeNode

Direct Known Subclasses:

ExpressionTree.LeafNode

Enclosing class:

ExpressionTree

public static class ExpressionTree.TreeNode
extends Object

The Class representing a Node in the ExpressionTree.

Constructor Summary

Constructors

Constructor and Description
TreeNode()
TreeNode(ExpressionTree.TreeNode lhs, ExpressionTree.LogicalOperator andOr, ExpressionTree.TreeNode rhs)

Method Summary

Modifier and Type	Method and Description
protected void	accept(ExpressionTree.TreeVisitor visitor) Double dispatch for TreeVisitor.
void	generateJDOFilter(org.apache.hadoop.conf.Configuration conf, org.apache.hadoop.hive.metastore.api.Table table, Map<String,Object> params, ExpressionTree.FilterBuilder filterBuffer) Generates a JDO filter statement
ExpressionTree.LogicalOperator	getAndOr()
ExpressionTree.TreeNode	getLhs()
ExpressionTree.TreeNode	getRhs()

Methods inherited from class java.lang.Object

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

Constructor Detail

TreeNode

public TreeNode()

TreeNode

public TreeNode(ExpressionTree.TreeNode lhs,
                ExpressionTree.LogicalOperator andOr,
                ExpressionTree.TreeNode rhs)

Method Detail

getLhs

public ExpressionTree.TreeNode getLhs()

getAndOr

public ExpressionTree.LogicalOperator getAndOr()

getRhs

public ExpressionTree.TreeNode getRhs()

accept

protected void accept(ExpressionTree.TreeVisitor visitor)
               throws org.apache.hadoop.hive.metastore.api.MetaException

Double dispatch for TreeVisitor.

Throws:

org.apache.hadoop.hive.metastore.api.MetaException

generateJDOFilter

public void generateJDOFilter(org.apache.hadoop.conf.Configuration conf,
                              org.apache.hadoop.hive.metastore.api.Table table,
                              Map<String,Object> params,
                              ExpressionTree.FilterBuilder filterBuffer)
                       throws org.apache.hadoop.hive.metastore.api.MetaException

Generates a JDO filter statement

Parameters:

table - The table on which the filter is applied. If table is not null, then this method generates a JDO statement to get all partitions of the table that match the filter. If table is null, then this method generates a JDO statement to get all tables that match the filter.

params - A map of parameter key to values for the filter statement.

filterBuffer - The filter builder that is used to build filter.

Throws:

org.apache.hadoop.hive.metastore.api.MetaException