ru.yandex.clickhouse.jdbc.parser

Class ParseHandler

java.lang.Object

ru.yandex.clickhouse.jdbc.parser.ParseHandler

public abstract class ParseHandler
extends Object

Constructor Summary

Constructors

Constructor and Description
ParseHandler()

Method Summary

Modifier and Type	Method and Description
String	handleMacro(String name, List<String> parameters) Handle macro like "#include('/tmp/template.sql')".
String	handleParameter(String cluster, String database, String table, int columnIndex) Handle parameter.
ClickHouseSqlStatement	handleStatement(String sql, StatementType stmtType, String cluster, String database, String table, String format, String outfile, List<Integer> parameters, Map<String,Integer> positions) Hanlde statemenet.

Methods inherited from class java.lang.Object

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

Constructor Detail

ParseHandler

public ParseHandler()

Method Detail

handleMacro

public String handleMacro(String name,
                          List<String> parameters)

Handle macro like "#include('/tmp/template.sql')".

Parameters:

name - name of the macro

parameters - parameters

Returns:

output of the macro, could be null or empty string

handleParameter

public String handleParameter(String cluster,
                              String database,
                              String table,
                              int columnIndex)

Handle parameter.

Parameters:

cluster - cluster

database - database

table - table

columnIndex - columnIndex(starts from 1 not 0)

Returns:

parameter value

handleStatement

public ClickHouseSqlStatement handleStatement(String sql,
                                              StatementType stmtType,
                                              String cluster,
                                              String database,
                                              String table,
                                              String format,
                                              String outfile,
                                              List<Integer> parameters,
                                              Map<String,Integer> positions)

Hanlde statemenet.

Parameters:

sql - sql statement

stmtType - statement type

cluster - cluster

database - database

table - table

format - format

outfile - outfile

parameters - positions of parameters

positions - keyword positions

Returns:

sql statement, or null means no change