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#367 - Polishing.

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Simplified the NamingStrategy by replacing parts of it with Table and Column annotations.
This commit is contained in:
Jens Schauder
2018-05-24 09:38:07 +02:00
parent 3248cda95c
commit 0a9a8f4e60
3 changed files with 7 additions and 11 deletions
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4
jdbc/basics/README.adoc
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@@ -14,9 +14,9 @@ This example demonstrate basic usage of JDBC based repositories.
This example demonstrates various ways to bend what the standard mapping of Spring Data JDBC can do. This example demonstrates various ways to bend what the standard mapping of Spring Data JDBC can do.
* `AggregateContext.idSetting()` registers an `ApplicationListener` to implement a custom id generation strategy for `LegoSet` and `Manual`. * `AggregateConfiguration.idSetting()` registers an `ApplicationListener` to implement a custom id generation strategy for `LegoSet` and `Manual`.
* `AggregateContext.namingStrategy()` registers a custom `NamingStrategy` in order to map property and class names to database columns and tables. * `AggregateConfiguration.namingStrategy()` registers a custom `NamingStrategy` in order to map property and class names to database columns and tables.
* The `minimumAge` and `maximumAge` properties show a way to use types which don't have direct mapping to a SQL type, by marking them with `@Transient` and having converted properties for Spring Data JDBC to use. * The `minimumAge` and `maximumAge` properties show a way to use types which don't have direct mapping to a SQL type, by marking them with `@Transient` and having converted properties for Spring Data JDBC to use.

10
jdbc/basics/src/main/java/example/springdata/jdbc/basics/aggregate/AggregateConfiguration.java
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@@ -38,6 +38,7 @@ import org.springframework.lang.Nullable;
@Configuration @Configuration
@EnableJdbcRepositories @EnableJdbcRepositories
public class AggregateConfiguration { public class AggregateConfiguration {
final AtomicInteger id = new AtomicInteger(0); final AtomicInteger id = new AtomicInteger(0);
@Bean @Bean
@@ -67,13 +68,9 @@ public class AggregateConfiguration {
@Bean @Bean
public NamingStrategy namingStrategy() { public NamingStrategy namingStrategy() {
Map<String, String> tableAliases = new HashMap<String, String>();
tableAliases.put("manual", "handbuch");
Map<String, String> columnAliases = new HashMap<String, String>(); Map<String, String> columnAliases = new HashMap<String, String>();
columnAliases.put("lego_set.int_maximum_age", "max_age"); columnAliases.put("lego_set.int_maximum_age", "max_age");
columnAliases.put("lego_set.int_minimum_age", "min_age"); columnAliases.put("lego_set.int_minimum_age", "min_age");
columnAliases.put("handbuch.id", "handbuch_id");
Map<String, String> reverseColumnAliases = new HashMap<String, String>(); Map<String, String> reverseColumnAliases = new HashMap<String, String>();
reverseColumnAliases.put("manual", "handbuch_id"); reverseColumnAliases.put("manual", "handbuch_id");
@@ -91,11 +88,6 @@ public class AggregateConfiguration {
return columnAliases.computeIfAbsent(key, __ -> defaultName); return columnAliases.computeIfAbsent(key, __ -> defaultName);
} }
@Override
public String getTableName(Class<?> type) {
return tableAliases.computeIfAbsent(NamingStrategy.super.getTableName(type), key -> key);
}
@Override @Override
public String getReverseColumnName(JdbcPersistentProperty property) { public String getReverseColumnName(JdbcPersistentProperty property) {
return reverseColumnAliases.computeIfAbsent(property.getName(), return reverseColumnAliases.computeIfAbsent(property.getName(),

4
jdbc/basics/src/main/java/example/springdata/jdbc/basics/aggregate/Manual.java
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@@ -18,6 +18,8 @@ package example.springdata.jdbc.basics.aggregate;
import lombok.Data; import lombok.Data;
import org.springframework.data.annotation.Id; import org.springframework.data.annotation.Id;
import org.springframework.data.jdbc.core.mapping.Column;
import org.springframework.data.jdbc.core.mapping.Table;
/** /**
* A manual instructing how to assemble a {@link LegoSet}. * A manual instructing how to assemble a {@link LegoSet}.
@@ -25,8 +27,10 @@ import org.springframework.data.annotation.Id;
* @author Jens Schauder * @author Jens Schauder
*/ */
@Data @Data
@Table("handbuch")
public class Manual { public class Manual {
@Column("handbuch_id")
private @Id Long id; private @Id Long id;
private String author, text; private String author, text;