Package io.debezium.antlr

Class DataTypeResolver

java.lang.Object

io.debezium.antlr.DataTypeResolver

@ThreadSafe
@Immutable
public class DataTypeResolver
extends Object

A resolver for DBMS data types. Its main purpose is to match corresponding JDBC data type, resolve a name of parsed data type, and optionally predefine default values for length and scale for DBMS data type.

Author:

Roman Kuchár <kucharrom@gmail.com>.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	DataTypeResolver.Builder
static class	DataTypeResolver.DataTypeEntry	DTO class for definition of data type.

Field Summary

Fields

Modifier and Type	Field	Description
private final Map<String,List<DataTypeResolver.DataTypeEntry>>	contextDataTypesMap

Constructor Summary

Constructors

Modifier	Constructor	Description
private	DataTypeResolver(Map<String,List<DataTypeResolver.DataTypeEntry>> contextDataTypesMap)

Method Summary

Modifier and Type	Method	Description
private void	addOptionalSuffixToName(org.antlr.v4.runtime.ParserRuleContext dataTypeContext, DataTypeResolver.DataTypeEntry dataTypeEntry, DataTypeBuilder dataTypeBuilder)
private DataType	buildDataType(org.antlr.v4.runtime.ParserRuleContext dataTypeContext, DataTypeResolver.DataTypeEntry dataTypeEntry, DataTypeBuilder dataTypeBuilder)
DataType	resolveDataType(org.antlr.v4.runtime.ParserRuleContext dataTypeContext)	Resolves a data type from given parsed context.

Methods inherited from class java.lang.Object

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

Field Details

contextDataTypesMap

private final Map<String,List<DataTypeResolver.DataTypeEntry>> contextDataTypesMap

Constructor Details

DataTypeResolver

private DataTypeResolver(Map<String,List<DataTypeResolver.DataTypeEntry>> contextDataTypesMap)

Method Details

resolveDataType

public DataType resolveDataType(org.antlr.v4.runtime.ParserRuleContext dataTypeContext)

Resolves a data type from given parsed context.

Parameters:

dataTypeContext - parse context; may not e null

Returns:

instance of DataType, which will holds matched JDBC type, name and default values for length and scale.

buildDataType

private DataType buildDataType(org.antlr.v4.runtime.ParserRuleContext dataTypeContext,
 DataTypeResolver.DataTypeEntry dataTypeEntry,
 DataTypeBuilder dataTypeBuilder)

addOptionalSuffixToName

private void addOptionalSuffixToName(org.antlr.v4.runtime.ParserRuleContext dataTypeContext,
 DataTypeResolver.DataTypeEntry dataTypeEntry,
 DataTypeBuilder dataTypeBuilder)