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/*
* 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.
*
* @see org.hibernate.engine.jdbc.dialect.spi.DialectResolutionInfo
*/
public interface DatabaseVersion {
/**
* Constant used to indicate that no version is defined
*/
int NO_VERSION = -9999;
/**
* Factory for DatabaseVersion based on major version (minor and micro set to zero)
*/
static DatabaseVersion make(Integer major) {
return make( major, 0 );
}
/**
* Factory for DatabaseVersion based on major and minor version (micro set to zero)
*/
static DatabaseVersion make(Integer major, Integer minor) {
return make( major, minor, 0 );
}
/**
* Factory for DatabaseVersion based on major, minor and micro
*/
static DatabaseVersion make(Integer major, Integer minor, Integer micro) {
return new SimpleDatabaseVersion( major, minor, micro );
}
/**
* 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 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()
*/
default int getDatabaseMicroVersion() {
return 0;
}
/**
* Simpler naming
*
* @see #getDatabaseMajorVersion()
*/
default int getMajor() {
return getDatabaseMajorVersion();
}
/**
* Simpler naming
*
* @see #getDatabaseMinorVersion()
*/
default int getMinor() {
return getDatabaseMinorVersion();
}
/**
* Simpler naming
*
* @see #getDatabaseMicroVersion()
*/
default int getMicro() {
return getDatabaseMicroVersion();
}
/**
* Make a simple copy of this version object,
* unless this version object has {@link #NO_VERSION no version information},
* in which case just return the given {@code defaultVersion}.
* @param defaultVersion The default version, to be returned if
* this version object has {@link #NO_VERSION no version information}.
* @return The copy, or {@code defaultVersion}.
*/
default DatabaseVersion makeCopyOrDefault(DatabaseVersion defaultVersion) {
if ( getMajor() == NO_VERSION && getMinor() == NO_VERSION && getMicro() == NO_VERSION ) {
return defaultVersion;
}
return makeCopy();
}
/**
* Make a simple copy of this version object
* @deprecated In dialect implementations, prefer {@link #makeCopyOrDefault(DatabaseVersion)} to gracefully default
* to the minimum supported version.
*/
@Deprecated
default DatabaseVersion makeCopy() {
return new SimpleDatabaseVersion( this );
}
/**
* Make a copy of this version object, possibly converting {@link #NO_VERSION}
* to zero
* @deprecated In dialect implementations, prefer {@link #makeCopyOrDefault(DatabaseVersion)} to gracefully default
* to the minimum supported version.
*/
@Deprecated
default DatabaseVersion makeCopy(boolean noVersionAsZero) {
return new SimpleDatabaseVersion( this, noVersionAsZero );
}
/**
* Determine if the versions are the same/equal.
*/
default boolean isSame(DatabaseVersion other) {
return isSame( other.getDatabaseMajorVersion(), other.getDatabaseMinorVersion(), other.getDatabaseMicroVersion() );
}
/**
* Determine if this version matches the passed one.
*/
default boolean isSame(int otherMajor) {
return getDatabaseMajorVersion() == otherMajor;
}
/**
* Determine if this version matches the passed one.
*/
default boolean isSame(int otherMajor, int otherMinor) {
return isSame( otherMajor ) && getDatabaseMinorVersion() == otherMinor;
}
/**
* Determine if this version matches the passed one.
*/
default boolean isSame(int otherMajor, int otherMinor, int otherMicro) {
return isSame( otherMajor, otherMinor ) && getDatabaseMicroVersion() == otherMicro;
}
/**
* {@link #isSame} or {@link #isAfter}
*/
default boolean isSameOrAfter(DatabaseVersion other) {
return isSameOrAfter( other.getDatabaseMajorVersion(), other.getDatabaseMinorVersion() );
}
/**
* {@link #isSame} or {@link #isAfter}
*/
default boolean isSameOrAfter(Integer otherMajor, Integer otherMinor) {
return isSameOrAfter(
(int) otherMajor,
otherMinor == null ? NO_VERSION : otherMinor
);
}
/**
* {@link #isSame} or {@link #isAfter}
*/
default boolean isSameOrAfter(int otherMajor) {
final int major = getDatabaseMajorVersion();
return major >= otherMajor;
}
/**
* {@link #isSame} or {@link #isAfter}
*/
default boolean isSameOrAfter(int otherMajor, int otherMinor) {
final int major = getDatabaseMajorVersion();
final int minor = getDatabaseMinorVersion();
return major > otherMajor
|| ( major == otherMajor && minor >= otherMinor );
}
/**
* {@link #isSame} or {@link #isAfter}
*/
default boolean isSameOrAfter(int otherMajor, int otherMinor, int otherMicro) {
final int major = getDatabaseMajorVersion();
final int minor = getDatabaseMinorVersion();
final int micro = getDatabaseMicroVersion();
return major > otherMajor
|| ( major == otherMajor && minor > otherMinor )
|| ( major == otherMajor && minor == otherMinor && micro >= otherMicro );
}
/**
* Determine whether this version comes after the passed one
*/
default boolean isAfter(DatabaseVersion other) {
return isAfter( other.getDatabaseMajorVersion(), other.getDatabaseMinorVersion() );
}
/**
* Determine whether this version after the passed one
*/
default boolean isAfter(Integer major, Integer minor) {
return isAfter( (int) major, minor == null ? NO_VERSION : minor );
}
/**
* Determine whether this version after the passed one
*/
default boolean isAfter(int major) {
return getDatabaseMajorVersion() > major;
}
/**
* Determine whether this version after the passed one
*/
default boolean isAfter(int major, int minor) {
return getDatabaseMajorVersion() > major
|| ( getDatabaseMajorVersion() == major && getDatabaseMinorVersion() > minor );
}
/**
* Determine whether this version after the passed one
*/
default boolean isAfter(int otherMajor, int otherMinor, int otherMicro) {
final int major = getDatabaseMajorVersion();
final int minor = getDatabaseMinorVersion();
final int micro = getDatabaseMicroVersion();
return major > otherMajor
|| ( major == otherMajor && minor > otherMinor )
|| ( major == otherMajor && minor == otherMinor && otherMicro > micro );
}
/**
* Determine whether this version comes before the passed one
*/
default boolean isBefore(DatabaseVersion other) {
return isBefore( other.getDatabaseMajorVersion(), other.getDatabaseMinorVersion() );
}
/**
* Determine whether this version before the passed one
*/
default boolean isBefore(int major, int minor) {
return ! isSameOrAfter( major, minor );
}
/**
* Determine whether this version before the passed one
*/
default boolean isBefore(int major) {
return ! isSameOrAfter( major );
}
/**
* Determine whether this version before the passed one
*/
default boolean isBefore(Integer major, Integer minor) {
return isBefore( (int) major, minor == null ? NO_VERSION : minor );
}
/**
* Determine whether this version before the passed one
*/
default boolean isBefore(int otherMajor, int otherMinor, int otherMicro) {
return ! isSameOrAfter( otherMajor, otherMinor, otherMicro );
}
}
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