com.feedzai.commons.sql.abstraction.engine

Class AbstractTranslator

java.lang.Object

com.feedzai.commons.sql.abstraction.engine.AbstractTranslator

Direct Known Subclasses:

DB2Translator, H2Translator, MySqlTranslator, OracleTranslator, PostgreSqlTranslator, SqlServerTranslator

public abstract class AbstractTranslator
extends Object

Abstract translator to be extended by specific implementations.

This class already provides translations that are common to all databases.

Since:

2.0.0

Author:

Rui Vilao (rui.vilao@feedzai.com)

Field Summary

Fields

Modifier and Type	Field and Description
protected com.google.inject.Injector	injector The Guice injector.
protected PdbProperties	properties The properties in place.

Constructor Summary

Constructors

Constructor and Description
AbstractTranslator()

Method Summary

Modifier and Type	Method and Description
protected void	inject(Collection<? extends Expression> objs) Injects dependencies on the given objects.
protected void	inject(Expression... objs) Injects dependencies on the given objects.
protected String	join(Collection<?> list, String delimiter) Joins a collection of objects given the delimiter.
protected Union	rowsToUnion(List<Expression> rows) Transform values' rows into a union.
abstract String	translate(AlterColumn ac) Translates Name.
String	translate(Between b) Translates Between.
String	translate(Case aCase) Translates Case.
abstract String	translate(Cast cast) Translates Cast.
String	translate(Coalesce c) Translates Coalesce.
String	translate(Concat concat) Transform the concat keyword.
abstract String	translate(DbColumn dc) Translates DbColumn.
String	translate(Delete d) Translates Delete.
abstract String	translate(DropPrimaryKey dpk) Translates DropPrimaryKey.
abstract String	translate(Function f) Translates Function.
String	translate(Join j) Translates Join.
String	translate(K k) Translates K.
String	translate(Literal l) Translates Literal.
String	translate(Modulo m) Translates Modulo.
String	translate(Name n) Translates Name.
abstract String	translate(Query q) Translates Query.
abstract String	translate(Rename r) Translates Rename.
abstract String	translate(RepeatDelimiter rd) Translates RepeatDelimiter.
abstract String	translate(StringAgg stringAgg) Translates StringAgg.
String	translate(SubString subString) Translates SubString SQL function.
String	translate(Truncate t) Translates Truncate.
String	translate(Union union) Translates Union.
String	translate(Update u) Translates Update.
String	translate(Values.Row row) Translates Values.Row.
String	translate(Values values) Translates Values.
abstract String	translate(View v) Translates View.
String	translate(When when) Translates When.
String	translate(With with)
abstract String	translateEscape() Translates the escape character.
abstract String	translateFalse() Translates the boolean false.
abstract String	translateTrue() Translates the boolean true.
protected String	translateUpdate(Update update) Translates Update.
protected String	translateUpdateFrom(Update update) Translates Update considering the FROM clause.
protected String	translateUpdateSetClause(Update update) Translates Update SET clause.

Methods inherited from class java.lang.Object

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

Field Detail

properties

@Inject
protected PdbProperties properties

The properties in place.

injector

@Inject
protected com.google.inject.Injector injector

The Guice injector.

Constructor Detail

AbstractTranslator

public AbstractTranslator()

Method Detail

inject

protected void inject(Expression... objs)

Injects dependencies on the given objects.

Parameters:

objs - The objects to be injected.

inject

protected void inject(Collection<? extends Expression> objs)

Injects dependencies on the given objects.

Parameters:

objs - The objects to be injected.

join

protected String join(Collection<?> list,
                      String delimiter)

Joins a collection of objects given the delimiter.

Parameters:

list - The collection of objects to join.

delimiter - The delimiter.

Returns:

A String representing the given objects separated by the delimiter.

translate

public String translate(Name n)

Translates Name.

Parameters:

n - The object to translate.

Returns:

The string representation of the given object.

translate

public String translate(Between b)

Translates Between.

Parameters:

b - The object to translate.

Returns:

The string representation of the given object.

translate

public String translate(Coalesce c)

Translates Coalesce.

Parameters:

c - The object to translate.

Returns:

The string representation of the given object.

translate

public String translate(Delete d)

Translates Delete.

Parameters:

d - The object to translate.

Returns:

The string representation of the given object.

translate

public String translate(Join j)

Translates Join.

Parameters:

j - The object to translate.

Returns:

The string representation of the given object.

translate

public String translate(K k)

Translates K.

Parameters:

k - The object to translate.

Returns:

The string representation of the given object.

translate

public String translate(Literal l)

Translates Literal.

Parameters:

l - The object to translate.

Returns:

The string representation of the given object.

translate

public String translate(Truncate t)

Translates Truncate.

Parameters:

t - The object to translate.

Returns:

The string representation of the given object.

translate

public String translate(Update u)

Translates Update.

Parameters:

u - The object to translate.

Returns:

The string representation of the given object.

translateUpdate

protected String translateUpdate(Update update)

Translates Update.

Parameters:

update - The update to translate.

Returns:

The string representation of the given object.

translateUpdateFrom

protected String translateUpdateFrom(Update update)

Translates Update considering the FROM clause.

Parameters:

update - The update to translate.

Returns:

The string representation of the given object.

translateUpdateSetClause

protected String translateUpdateSetClause(Update update)

Translates Update SET clause.

Parameters:

update - The update to translate.

Returns:

The string representation of the SET clause.

translate

public String translate(With with)

translate

public String translate(When when)

Translates When.

Parameters:

when - a when.

Returns:

when translation.

translate

public String translate(Case aCase)

Translates Case.

Parameters:

aCase - a case.

Returns:

case translation.

translate

public abstract String translate(Cast cast)

Translates Cast.

Parameters:

cast - a cast expression.

Returns:

cast translation.

translate

public String translate(Union union)

Translates Union.

Parameters:

union - a union.

Returns:

union translation.

translate

public String translate(Values values)

Translates Values.

Parameters:

values - a values.

Returns:

values translation.

translate

public String translate(Values.Row row)

Translates Values.Row.

Parameters:

row - a values.row.

Returns:

values.row translation.

rowsToUnion

protected Union rowsToUnion(List<Expression> rows)

Transform values' rows into a union.

Parameters:

rows - the values' rows

Returns:

the resulting union

translate

public String translate(Concat concat)

Transform the concat keyword.

Parameters:

concat - the concat.

Returns:

the translated concat.

translateEscape

public abstract String translateEscape()

Translates the escape character.

Returns:

The string representation of the escape character.

translateTrue

public abstract String translateTrue()

Translates the boolean true.

Returns:

The string representation of the true keyword.

translateFalse

public abstract String translateFalse()

Translates the boolean false.

Returns:

The string representation of the false keyword.

translate

public abstract String translate(AlterColumn ac)

Translates Name.

Parameters:

ac - The object to translate.

Returns:

The string representation of the given object.

translate

public abstract String translate(DropPrimaryKey dpk)

Translates DropPrimaryKey.

Parameters:

dpk - The object to translate.

Returns:

The string representation of the given object.

translate

public abstract String translate(Function f)

Translates Function.

Parameters:

f - The object to translate.

Returns:

The string representation of the given object.

translate

public String translate(Modulo m)

Translates Modulo.

Parameters:

m - The object to translate.

Returns:

The string representation of the given object.

translate

public abstract String translate(Rename r)

Translates Rename.

Parameters:

r - The object to translate.

Returns:

The string representation of the given object.

translate

public abstract String translate(RepeatDelimiter rd)

Translates RepeatDelimiter.

Parameters:

rd - The object to translate.

Returns:

The string representation of the given object.

translate

public abstract String translate(Query q)

Translates Query.

Parameters:

q - The object to translate.

Returns:

The string representation of the given object.

translate

public abstract String translate(View v)

Translates View.

Parameters:

v - The object to translate.

Returns:

The string representation of the given object.

translate

public abstract String translate(DbColumn dc)

Translates DbColumn.

Parameters:

dc - The object to translate.

Returns:

The string representation of the given object.

translate

public abstract String translate(StringAgg stringAgg)

Translates StringAgg.

Parameters:

stringAgg - The object to translate.

Returns:

The string representation of the given object.

translate

public String translate(SubString subString)

Translates SubString SQL function.

Parameters:

subString - The SubString expression to translate.

Returns:

The string representation of the given expression.