Package app.babylon.table.transform.dsl

Class TransformDslParser

java.lang.Object

app.babylon.table.transform.dsl.TransformDslParser

public final class TransformDslParser
extends Object

Parses a single transformation DSL statement into a Transform.

The first word is always the command. Later keywords introduce named clauses: using supplies transform-specific configuration such as a date format or concat separator, by supplies a parse/search strategy such as firstIn, lastIn, onlyIn, or exact, and into names the output column. Quoted values are literals; parser rules use literals for free text and patterns where punctuation or spaces should be preserved.

Method Summary

Modifier and Type	Method	Description
Transform	parse(TokenStream tokens)
Transform	parse(String line)
List<Transform>	parseScript(CharSequence script)
String	readStatement(TokenStream tokens)
static TransformDslParser	standard()
TransformDslParser	with(String command, TransformCommandParser parser)
TransformDslParser	with(Map<String,TransformCommandParser> parsers)
<T> TransformDslParser	withRoundScale(Class<T> type, ToIntFunction<T> roundScale)
TransformDslParser	withType(String name, Column.Type type)
TransformDslParser	withTypes(Map<String,Column.Type> types)

Methods inherited from class java.lang.Object

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

Method Details

standard

public static TransformDslParser standard()

with

public TransformDslParser with(String command,
 TransformCommandParser parser)

with

public TransformDslParser with(Map<String,TransformCommandParser> parsers)

withType

public TransformDslParser withType(String name,
 Column.Type type)

withTypes

public TransformDslParser withTypes(Map<String,Column.Type> types)

withRoundScale

public <T> TransformDslParser withRoundScale(Class<T> type,
 ToIntFunction<T> roundScale)

parse

public Transform parse(String line)

parseScript

public List<Transform> parseScript(CharSequence script)

readStatement

public String readStatement(TokenStream tokens)

parse

public Transform parse(TokenStream tokens)