Package io.github.jdbcx.driver

Class QueryParser

java.lang.Object

io.github.jdbcx.driver.QueryParser

public final class QueryParser
extends Object

This class parses the given query string to extract discrete parts and executable code blocks. It can only recognize function(with a return value, usually string) "{{[-] [func[(key=value)]:] <...> }}" or procedure(void function) "{%[-] [proc[(key=value)]:] <...> %}". Block starts with "{{-" or "{%-"" will be skipped and replaced with empty string.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static final class	QueryParser.Part

Method Summary

Modifier and Type	Method	Description
static QueryParser.Part	newPart(int endPosition, String escapedString)
static ParsedQuery	parse(String query, Properties vars)	Parses the given query string.
static ParsedQuery	parse(String query, Properties vars, char escapeChar)	Parses the given query string to extract discrete parts and executable code blocks.

Methods inherited from class java.lang.Object

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

Method Details

newPart

public static QueryParser.Part newPart(int endPosition,
 String escapedString)

parse

public static ParsedQuery parse(String query,
 Properties vars)

Parses the given query string. Same as parse(query, vars, '\\').

Parameters:

query - the query string to parse

vars - optional variables for substitution

Returns:

non-null parsed query

parse

public static ParsedQuery parse(String query,
 Properties vars,
 char escapeChar)

Parses the given query string to extract discrete parts and executable code blocks.

Parameters:

query - the query string to parse

vars - optional variables for substitution

escapeChar - the escape character, typically backslash - cannot be percent (%) or brace ({})

Returns:

non-null parsed query