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initial work on DatabaseVersion#isAfter

This commit is contained in:
Steve Ebersole 2021-12-03 13:16:51 -06:00
parent ad48a01e2c
commit 43206b02fc
3 changed files with 76 additions and 76 deletions
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53
hibernate-core/src/main/java/org/hibernate/dialect/DatabaseVersion.java Normal file
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@ -0,0 +1,53 @@
/*
* Hibernate, Relational Persistence for Idiomatic Java
*
* License: GNU Lesser General Public License (LGPL), version 2.1 or later
* See the lgpl.txt file in the root directory or http://www.gnu.org/licenses/lgpl-2.1.html
*/
package org.hibernate.dialect;
/**
* Details about the underlying database, as understood by a Dialect.
*
* Also used in conjunction with {@link org.hibernate.engine.jdbc.dialect.spi.DialectResolutionInfo}
* to help resolve the Dialect to use.
*/
public interface DatabaseVersion {
/**
* Constant used to indicate that no version is defined
*/
int NO_VERSION = -9999;
/**
* Obtain access to the database major version, as returned from
* {@link java.sql.DatabaseMetaData#getDatabaseMajorVersion()} for the target database.
*
* @return The database major version, or {@value #NO_VERSION} to indicate "no version information"
*
* @see java.sql.DatabaseMetaData#getDatabaseMajorVersion()
*/
int getDatabaseMajorVersion();
/**
* Obtain access to the database minor version, as returned from
* {@link java.sql.DatabaseMetaData#getDatabaseMinorVersion()} for the target database.
*
* @return The database minor version, or {@value #NO_VERSION} to indicate "no version information"
*
* @see java.sql.DatabaseMetaData#getDatabaseMinorVersion()
*/
int getDatabaseMinorVersion();
default boolean isAfter(DatabaseVersion other) {
return isAfter( other.getDatabaseMajorVersion(), other.getDatabaseMinorVersion() );
}
default boolean isAfter(int major, int minor) {
return getDatabaseMajorVersion() > major
|| ( getDatabaseMajorVersion() == major && getDatabaseMinorVersion() > minor );
}
default boolean isAfter(Integer major, Integer minor) {
return isAfter( (int) major, minor == null ? NO_VERSION : minor );
}
}

24
hibernate-core/src/main/java/org/hibernate/engine/jdbc/dialect/spi/DialectResolutionInfo.java
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@ -6,6 +6,8 @@
*/
package org.hibernate.engine.jdbc.dialect.spi;
import org.hibernate.dialect.DatabaseVersion;
/**
* Exposes information about the database and JDBC driver that can be used in resolving the appropriate Dialect
* to use.
@ -13,7 +15,7 @@ package org.hibernate.engine.jdbc.dialect.spi;
* The information here mimics part of the JDBC {@link java.sql.DatabaseMetaData} contract, specifically the portions
* about database and driver names and versions.
*/
public interface DialectResolutionInfo extends DialectVersionDetails {
public interface DialectResolutionInfo extends DatabaseVersion {
/**
* Obtain access to the database name, as returned from {@link java.sql.DatabaseMetaData#getDatabaseProductName()}
@ -45,6 +47,26 @@ public interface DialectResolutionInfo extends DialectVersionDetails {
*/
String getDriverName();
/**
* Obtain access to the major version of the JDBC driver, as returned from
* {@link java.sql.DatabaseMetaData#getDriverMajorVersion()} ()} for the target database.
*
* @return The JDBC driver major version, or {@value #NO_VERSION} to indicate "no version information"
*
* @see java.sql.DatabaseMetaData#getDriverMajorVersion()
*/
int getDriverMajorVersion();
/**
* Obtain access to the minor version of the JDBC driver, as returned from
* {@link java.sql.DatabaseMetaData#getDriverMinorVersion()} for the target database.
*
* @return The JDBC driver minor version, or {@value #NO_VERSION} to indicate "no version information"
*
* @see java.sql.DatabaseMetaData#getDriverMinorVersion()
*/
int getDriverMinorVersion();
/**
* Obtain access to the SQL keywords of the JDBC driver, as returned from
* {@link java.sql.DatabaseMetaData#getSQLKeywords()} for the target database.

75
hibernate-core/src/main/java/org/hibernate/engine/jdbc/dialect/spi/DialectVersionDetails.java
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@ -1,75 +0,0 @@
/*
* Hibernate, Relational Persistence for Idiomatic Java
*
* License: GNU Lesser General Public License (LGPL), version 2.1 or later
* See the lgpl.txt file in the root directory or http://www.gnu.org/licenses/lgpl-2.1.html
*/
package org.hibernate.engine.jdbc.dialect.spi;
/**
* @author Steve Ebersole
*/
public interface DialectVersionDetails {
/**
* Constant used to indicate that no version is defined
*/
int NO_VERSION = -9999;
/**
* Obtain access to the database major version, as returned from
* {@link java.sql.DatabaseMetaData#getDatabaseMajorVersion()} for the target database.
*
* @return The database major version, or {@value #NO_VERSION} to indicate "no version information"
*
* @see java.sql.DatabaseMetaData#getDatabaseMajorVersion()
*/
int getDatabaseMajorVersion();
/**
* Obtain access to the database minor version, as returned from
* {@link java.sql.DatabaseMetaData#getDatabaseMinorVersion()} for the target database.
*
* @return The database minor version, or {@value #NO_VERSION} to indicate "no version information"
*
* @see java.sql.DatabaseMetaData#getDatabaseMinorVersion()
*/
int getDatabaseMinorVersion();
/**
* Obtain access to the major version of the JDBC driver, as returned from
* {@link java.sql.DatabaseMetaData#getDriverMajorVersion()} ()} for the target database.
*
* @return The JDBC driver major version, or {@value #NO_VERSION} to indicate "no version information"
*
* @see java.sql.DatabaseMetaData#getDriverMajorVersion()
*/
int getDriverMajorVersion();
/**
* Obtain access to the minor version of the JDBC driver, as returned from
* {@link java.sql.DatabaseMetaData#getDriverMinorVersion()} for the target database.
*
* @return The JDBC driver minor version, or {@value #NO_VERSION} to indicate "no version information"
*
* @see java.sql.DatabaseMetaData#getDriverMinorVersion()
*/
int getDriverMinorVersion();
default boolean isAfterDatabaseVersion(DialectVersionDetails other) {
return isAfterDatabaseVersion( other.getDatabaseMajorVersion(), other.getDatabaseMinorVersion() );
}
default boolean isAfterDatabaseVersion(int major, int minor) {
return getDatabaseMajorVersion() > major
|| ( getDatabaseMajorVersion() == major && getDatabaseMinorVersion() > minor );
}
default boolean isAfterDriverVersion(DialectVersionDetails other) {
return isAfterDriverVersion( other.getDatabaseMajorVersion(), other.getDatabaseMinorVersion() );
}
default boolean isAfterDriverVersion(int major, int minor) {
return getDriverMajorVersion() > major
|| ( getDriverMajorVersion() == major && getDriverMinorVersion() > minor );
}
}