xUtils系列之DbUtils-Table注解

Table注解定义:

@Target(ElementType.TYPE)
@Retention(RetentionPolicy.RUNTIME)
public @interface Table {

    String name() default "";

    String execAfterTableCreated() default "";
}

DbUtils解析部分:

public void createTableIfNotExist(Class<?> entityType) throws DbException {
    if (!tableIsExist(entityType)) {
        SqlInfo sqlInfo = SqlInfoBuilder.buildCreateTableSqlInfo(this, entityType);
        execNonQuery(sqlInfo);
        String execAfterTableCreated = TableUtils.getExecAfterTableCreated(entityType);
        if (!TextUtils.isEmpty(execAfterTableCreated)) {
            execNonQuery(execAfterTableCreated);
        }
    }
}

public static SqlInfo buildCreateTableSqlInfo(DbUtils db, Class<?> entityType) throws DbException {
    Table table = Table.get(db, entityType);
    Id id = table.id;

    StringBuffer sqlBuffer = new StringBuffer();
    sqlBuffer.append("CREATE TABLE IF NOT EXISTS ");
    sqlBuffer.append(table.tableName);

注意:
1.@Table不填参数时,表名为类名


用法:

@Table(name = "parent", execAfterTableCreated = "CREATE UNIQUE INDEX index_name ON parent(name,email)")
public class Parent{

	private int id;

	<snip>
}