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[Draft] Enum databases mappings #159

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97 changes: 96 additions & 1 deletion .../database-cassandra/src/main/java/ru/tinkoff/kora/database/cassandra/CassandraModule.java
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Original file line number Diff line number Diff line change
@@ -1,12 +1,18 @@
package ru.tinkoff.kora.database.cassandra;

import ru.tinkoff.kora.application.graph.TypeRef;
import ru.tinkoff.kora.common.DefaultComponent;
import ru.tinkoff.kora.database.cassandra.mapper.parameter.CassandraParameterColumnMapper;
import ru.tinkoff.kora.database.cassandra.mapper.result.CassandraResultSetMapper;
import ru.tinkoff.kora.database.cassandra.mapper.result.CassandraRowColumnMapper;
import ru.tinkoff.kora.database.cassandra.mapper.result.CassandraRowMapper;
import ru.tinkoff.kora.database.common.DataBaseModule;
import ru.tinkoff.kora.database.common.*;

import java.math.BigDecimal;
import java.nio.ByteBuffer;
import java.sql.Types;
import java.time.*;
import java.util.HashMap;
import java.util.Optional;

public interface CassandraModule extends DataBaseModule {
Expand Down Expand Up @@ -98,4 +104,93 @@ default CassandraRowMapper<Instant> instantCassandraRowMapper() {
? null
: row.getInstant(0);
}

// Parameter
@DefaultComponent
default <T extends Enum<T> & EnumColumnIntMapping> CassandraParameterColumnMapper<T> enumIntJdbcParameterColumnMapper() {
return (stmt, index, o) -> {
if (o == null) {
stmt.setToNull(index);
} else {
stmt.setInt(index, o.valueAsInt());
}
};
}

@DefaultComponent
default <T extends Enum<T> & EnumColumnShortMapping> CassandraParameterColumnMapper<T> enumShortJdbcParameterColumnMapper() {
return (stmt, index, o) -> {
if (o == null) {
stmt.setToNull(index);
} else {
stmt.setShort(index, o.valueAsShort());
}
};
}

@DefaultComponent
default <T extends Enum<T> & EnumColumnStringMapping> CassandraParameterColumnMapper<T> enumStringJdbcParameterColumnMapper() {
return (stmt, index, o) -> {
if (o == null) {
stmt.setToNull(index);
} else {
stmt.setString(index, o.toString());
}
};
}

// RowColumn
@DefaultComponent
default <T extends Enum<T> & EnumColumnIntMapping> CassandraRowColumnMapper<T> enumIntCassandraRowColumnMapper(TypeRef<T> typeRef) {
final T[] enums = typeRef.getRawType().getEnumConstants();
var enumMap = new HashMap<Integer, T>();
for (T e : enums) {
enumMap.put(e.valueAsInt(), e);
}

return (row, index) -> {
if (row.isNull(index)) {
return null;
}

var value = row.getInt(index);
return enumMap.get(value);
};
}

@DefaultComponent
default <T extends Enum<T> & EnumColumnShortMapping> CassandraRowColumnMapper<T> enumShortCassandraRowColumnMapper(TypeRef<T> typeRef) {
final T[] enums = typeRef.getRawType().getEnumConstants();
var enumMap = new HashMap<Short, T>();
for (T e : enums) {
enumMap.put(e.valueAsShort(), e);
}

return (row, index) -> {
if (row.isNull(index)) {
return null;
}

var value = row.getShort(index);
return enumMap.get(value);
};
}

@DefaultComponent
default <T extends Enum<T> & EnumColumnStringMapping> CassandraRowColumnMapper<T> enumStringCassandraRowColumnMapper(TypeRef<T> typeRef) {
final T[] enums = typeRef.getRawType().getEnumConstants();
var enumMap = new HashMap<String, T>();
for (T e : enums) {
enumMap.put(e.toString(), e);
}

return (row, index) -> {
if (row.isNull(index)) {
return null;
}

var value = row.getString(index);
return enumMap.get(value);
};
}
}
9 changes: 9 additions & 0 deletions ...e/database-common/src/main/java/ru/tinkoff/kora/database/common/EnumColumnIntMapping.java
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Original file line number Diff line number Diff line change
@@ -0,0 +1,9 @@
package ru.tinkoff.kora.database.common;

/**
* 4 byte
*/
public interface EnumColumnIntMapping {

int valueAsInt();
}
9 changes: 9 additions & 0 deletions ...database-common/src/main/java/ru/tinkoff/kora/database/common/EnumColumnShortMapping.java
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Original file line number Diff line number Diff line change
@@ -0,0 +1,9 @@
package ru.tinkoff.kora.database.common;

/**
* 2 byte
*/
public interface EnumColumnShortMapping {

short valueAsShort();
}
9 changes: 9 additions & 0 deletions ...atabase-common/src/main/java/ru/tinkoff/kora/database/common/EnumColumnStringMapping.java
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Original file line number Diff line number Diff line change
@@ -0,0 +1,9 @@
package ru.tinkoff.kora.database.common;

/**
* depends on varchar length
*/
public interface EnumColumnStringMapping {

String toString();
}
91 changes: 90 additions & 1 deletion database/database-jdbc/src/main/java/ru/tinkoff/kora/database/jdbc/JdbcModule.java
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Original file line number Diff line number Diff line change
@@ -1,7 +1,8 @@
package ru.tinkoff.kora.database.jdbc;

import ru.tinkoff.kora.application.graph.TypeRef;
import ru.tinkoff.kora.common.DefaultComponent;
import ru.tinkoff.kora.database.common.DataBaseModule;
import ru.tinkoff.kora.database.common.*;
import ru.tinkoff.kora.database.jdbc.mapper.parameter.JdbcParameterColumnMapper;
import ru.tinkoff.kora.database.jdbc.mapper.result.JdbcResultColumnMapper;
import ru.tinkoff.kora.database.jdbc.mapper.result.JdbcResultSetMapper;
Expand All @@ -10,6 +11,7 @@
import java.math.BigDecimal;
import java.sql.Types;
import java.time.*;
import java.util.HashMap;
import java.util.Optional;
import java.util.UUID;

Expand Down Expand Up @@ -254,6 +256,39 @@ default JdbcParameterColumnMapper<OffsetDateTime> offsetDateTimeJdbcParameterCol
};
}

@DefaultComponent
default <T extends Enum<T> & EnumColumnIntMapping> JdbcParameterColumnMapper<T> enumIntJdbcParameterColumnMapper() {
return (stmt, index, o) -> {
if (o == null) {
stmt.setNull(index, Types.INTEGER);
} else {
stmt.setInt(index, o.valueAsInt());
}
};
}

@DefaultComponent
default <T extends Enum<T> & EnumColumnShortMapping> JdbcParameterColumnMapper<T> enumShortJdbcParameterColumnMapper() {
return (stmt, index, o) -> {
if (o == null) {
stmt.setNull(index, Types.SMALLINT);
} else {
stmt.setShort(index, o.valueAsShort());
}
};
}

@DefaultComponent
default <T extends Enum<T> & EnumColumnStringMapping> JdbcParameterColumnMapper<T> enumStringJdbcParameterColumnMapper() {
return (stmt, index, o) -> {
if (o == null) {
stmt.setNull(index, Types.VARCHAR);
} else {
stmt.setString(index, o.toString());
}
};
}

// Result Mappers
@DefaultComponent
default JdbcResultColumnMapper<BigDecimal> bigDecimalJdbcResultColumnMapper() {
Expand Down Expand Up @@ -331,4 +366,58 @@ default JdbcResultColumnMapper<OffsetDateTime> offsetDateTimeJdbcColumnMapper()
return value;
};
}

@DefaultComponent
default <T extends Enum<T> & EnumColumnIntMapping> JdbcResultColumnMapper<T> enumIntJdbcColumnMapper(TypeRef<T> typeRef) {
final T[] enums = typeRef.getRawType().getEnumConstants();
var enumMap = new HashMap<Integer, T>();
for (T e : enums) {
enumMap.put(e.valueAsInt(), e);
}

return (row, index) -> {
var value = row.getInt(index);
if (row.wasNull()) {
return null;
}

return enumMap.get(value);
};
}

@DefaultComponent
default <T extends Enum<T> & EnumColumnShortMapping> JdbcResultColumnMapper<T> enumShortJdbcColumnMapper(TypeRef<T> typeRef) {
final T[] enums = typeRef.getRawType().getEnumConstants();
var enumMap = new HashMap<Short, T>();
for (T e : enums) {
enumMap.put(e.valueAsShort(), e);
}

return (row, index) -> {
var value = row.getObject(index, Short.class);
if (row.wasNull()) {
return null;
}

return enumMap.get(value);
};
}

@DefaultComponent
default <T extends Enum<T> & EnumColumnStringMapping> JdbcResultColumnMapper<T> enumStringJdbcColumnMapper(TypeRef<T> typeRef) {
final T[] enums = typeRef.getRawType().getEnumConstants();
var enumMap = new HashMap<String, T>();
for (T e : enums) {
enumMap.put(e.toString(), e);
}

return (row, index) -> {
var value = row.getString(index);
if (row.wasNull()) {
return null;
}

return enumMap.get(value);
};
}
}
89 changes: 89 additions & 0 deletions database/database-r2dbc/src/main/java/ru/tinkoff/kora/database/r2dbc/R2dbcModule.java
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Original file line number Diff line number Diff line change
Expand Up @@ -2,8 +2,12 @@

import reactor.core.publisher.Flux;
import reactor.core.publisher.Mono;
import ru.tinkoff.kora.application.graph.TypeRef;
import ru.tinkoff.kora.common.DefaultComponent;
import ru.tinkoff.kora.database.common.DataBaseModule;
import ru.tinkoff.kora.database.common.EnumColumnIntMapping;
import ru.tinkoff.kora.database.common.EnumColumnShortMapping;
import ru.tinkoff.kora.database.common.EnumColumnStringMapping;
import ru.tinkoff.kora.database.r2dbc.mapper.parameter.R2dbcParameterColumnMapper;
import ru.tinkoff.kora.database.r2dbc.mapper.result.R2dbcResultColumnMapper;
import ru.tinkoff.kora.database.r2dbc.mapper.result.R2dbcResultFluxMapper;
Expand All @@ -12,6 +16,7 @@
import java.math.BigDecimal;
import java.math.BigInteger;
import java.time.*;
import java.util.HashMap;
import java.util.List;
import java.util.UUID;

Expand Down Expand Up @@ -170,6 +175,39 @@ default R2dbcParameterColumnMapper<OffsetDateTime> OffsetDateTimeR2dbcParameterC
};
}

@DefaultComponent
default <T extends Enum<T> & EnumColumnIntMapping> R2dbcParameterColumnMapper<T> enumIntJdbcParameterColumnMapper() {
return (stmt, index, o) -> {
if (o == null) {
stmt.bindNull(index, Integer.class);
} else {
stmt.bind(index, o.valueAsInt());
}
};
}

@DefaultComponent
default <T extends Enum<T> & EnumColumnShortMapping> R2dbcParameterColumnMapper<T> enumShortJdbcParameterColumnMapper() {
return (stmt, index, o) -> {
if (o == null) {
stmt.bindNull(index, Short.class);
} else {
stmt.bind(index, o.valueAsShort());
}
};
}

@DefaultComponent
default <T extends Enum<T> & EnumColumnStringMapping> R2dbcParameterColumnMapper<T> enumStringJdbcParameterColumnMapper() {
return (stmt, index, o) -> {
if (o == null) {
stmt.bindNull(index, String.class);
} else {
stmt.bind(index, o.toString());
}
};
}

// Result Column Mappers
@DefaultComponent
default R2dbcResultColumnMapper<BigDecimal> bigDecimalR2dbcResultColumnMapper() {
Expand Down Expand Up @@ -205,4 +243,55 @@ default R2dbcResultColumnMapper<OffsetTime> offsetTimeR2dbcResultColumnMapper()
default R2dbcResultColumnMapper<OffsetDateTime> offsetDateTimeR2dbcResultColumnMapper() {
return (row, label) -> row.get(label, OffsetDateTime.class);
}

@DefaultComponent
default <T extends Enum<T> & EnumColumnIntMapping> R2dbcResultColumnMapper<T> enumIntR2dbcRowColumnMapper(TypeRef<T> typeRef) {
final T[] enums = typeRef.getRawType().getEnumConstants();
var enumMap = new HashMap<Integer, T>();
for (T e : enums) {
enumMap.put(e.valueAsInt(), e);
}

return (row, index) -> {
var value = row.get(index, Integer.class);
if (value == null) {
return null;
}
return enumMap.get(value);
};
}

@DefaultComponent
default <T extends Enum<T> & EnumColumnShortMapping> R2dbcResultColumnMapper<T> enumShortR2dbcRowColumnMapper(TypeRef<T> typeRef) {
final T[] enums = typeRef.getRawType().getEnumConstants();
var enumMap = new HashMap<Short, T>();
for (T e : enums) {
enumMap.put(e.valueAsShort(), e);
}

return (row, index) -> {
var value = row.get(index, Short.class);
if (value == null) {
return null;
}
return enumMap.get(value);
};
}

@DefaultComponent
default <T extends Enum<T> & EnumColumnStringMapping> R2dbcResultColumnMapper<T> enumStringR2dbcRowColumnMapper(TypeRef<T> typeRef) {
final T[] enums = typeRef.getRawType().getEnumConstants();
var enumMap = new HashMap<String, T>();
for (T e : enums) {
enumMap.put(e.toString(), e);
}

return (row, index) -> {
var value = row.get(index, String.class);
if (value == null) {
return null;
}
return enumMap.get(value);
};
}
}
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