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DialectChecks.java
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DialectChecks.java
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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.testing;
import org.hibernate.dialect.AbstractHANADialect;
import org.hibernate.dialect.CockroachDialect;
import org.hibernate.dialect.DB2Dialect;
import org.hibernate.dialect.DerbyDialect;
import org.hibernate.dialect.Dialect;
import org.hibernate.dialect.MySQLDialect;
import org.hibernate.dialect.NationalizationSupport;
import org.hibernate.dialect.PostgreSQLDialect;
import org.hibernate.testing.orm.junit.DialectFeatureCheck;
/**
* Container class for different implementation of the {@link DialectCheck} interface.
*
* @author Hardy Ferentschik
* @author Steve Ebersole
*/
abstract public class DialectChecks {
public static class SupportsSequences implements DialectCheck {
public boolean isMatch(Dialect dialect) {
return dialect.getSequenceSupport().supportsSequences();
}
}
public static class SupportsExpectedLobUsagePattern implements DialectCheck {
public boolean isMatch(Dialect dialect) {
return dialect.supportsExpectedLobUsagePattern();
}
}
public static class UsesInputStreamToInsertBlob implements DialectCheck {
public boolean isMatch(Dialect dialect) {
return dialect.useInputStreamToInsertBlob();
}
}
public static class SupportsIdentityColumns implements DialectCheck {
public boolean isMatch(Dialect dialect) {
return dialect.getIdentityColumnSupport().supportsIdentityColumns();
}
}
public static class SupportsColumnCheck implements DialectCheck {
public boolean isMatch(Dialect dialect) {
return dialect.supportsColumnCheck();
}
}
public static class SupportsResultSetPositioningOnForwardOnlyCursorCheck implements DialectCheck {
public boolean isMatch(Dialect dialect) {
return dialect.supportsResultSetPositionQueryMethodsOnForwardOnlyCursor();
}
}
public static class SupportsCascadeDeleteCheck implements DialectCheck {
public boolean isMatch(Dialect dialect) {
return dialect.supportsCascadeDelete();
}
}
public static class SupportsCircularCascadeDeleteCheck implements DialectCheck {
public boolean isMatch(Dialect dialect) {
return dialect.supportsCircularCascadeDeleteConstraints();
}
}
public static class SupportsUnboundedLobLocatorMaterializationCheck implements DialectCheck {
public boolean isMatch(Dialect dialect) {
return dialect.supportsExpectedLobUsagePattern() && dialect.supportsUnboundedLobLocatorMaterialization();
}
}
public static class SupportSubqueryAsLeftHandSideInPredicate implements DialectCheck {
public boolean isMatch(Dialect dialect) {
return dialect.supportsSubselectAsInPredicateLHS();
}
}
public static class SupportLimitCheck implements DialectCheck {
public boolean isMatch(Dialect dialect) {
return dialect.getLimitHandler().supportsLimit();
}
}
public static class SupportLimitAndOffsetCheck implements DialectCheck {
public boolean isMatch(Dialect dialect) {
return dialect.getLimitHandler().supportsLimit() && dialect.getLimitHandler().supportsLimitOffset();
}
}
public static class SupportsParametersInInsertSelectCheck implements DialectCheck {
public boolean isMatch(Dialect dialect) {
return dialect.supportsParametersInInsertSelect();
}
}
public static class HasSelfReferentialForeignKeyBugCheck implements DialectCheck {
public boolean isMatch(Dialect dialect) {
return dialect.hasSelfReferentialForeignKeyBug();
}
}
public static class SupportsRowValueConstructorSyntaxCheck implements DialectCheck {
public boolean isMatch(Dialect dialect) {
return dialect instanceof AbstractHANADialect
|| dialect instanceof CockroachDialect
|| dialect instanceof MySQLDialect
|| dialect instanceof PostgreSQLDialect;
}
}
public static class DoesReadCommittedCauseWritersToBlockReadersCheck implements DialectCheck {
public boolean isMatch(Dialect dialect) {
return dialect.doesReadCommittedCauseWritersToBlockReaders();
}
}
public static class DoesReadCommittedNotCauseWritersToBlockReadersCheck implements DialectCheck {
public boolean isMatch(Dialect dialect) {
return ! dialect.doesReadCommittedCauseWritersToBlockReaders();
}
}
public static class DoesRepeatableReadCauseReadersToBlockWritersCheck implements DialectCheck {
public boolean isMatch(Dialect dialect) {
return dialect.doesRepeatableReadCauseReadersToBlockWriters();
}
}
public static class DoesRepeatableReadNotCauseReadersToBlockWritersCheck implements DialectCheck {
public boolean isMatch(Dialect dialect) {
return ! dialect.doesRepeatableReadCauseReadersToBlockWriters();
}
}
public static class SupportsExistsInSelectCheck implements DialectCheck {
public boolean isMatch(Dialect dialect) {
return dialect.supportsExistsInSelect();
}
}
public static class SupportsLobValueChangePropagation implements DialectCheck {
public boolean isMatch(Dialect dialect) {
return dialect.supportsLobValueChangePropagation();
}
}
public static class SupportsLockTimeouts implements DialectCheck {
public boolean isMatch(Dialect dialect) {
return dialect.supportsLockTimeouts();
}
}
public static class SupportsSkipLocked implements DialectCheck {
public boolean isMatch(Dialect dialect) {
return dialect.supportsSkipLocked();
}
}
public static class DoubleQuoteQuoting implements DialectCheck {
@Override
public boolean isMatch(Dialect dialect) {
return '\"' == dialect.openQuote() && '\"' == dialect.closeQuote();
}
}
public static class SupportSchemaCreation implements DialectCheck {
public boolean isMatch(Dialect dialect) {
return dialect.canCreateSchema();
}
}
public static class SupportCatalogCreation implements DialectCheck {
public boolean isMatch(Dialect dialect) {
return dialect.canCreateCatalog();
}
}
public static class DoesNotSupportFollowOnLocking implements DialectCheck {
public boolean isMatch(Dialect dialect) {
return !dialect.useFollowOnLocking( null, null );
}
}
public static class SupportPartitionBy implements DialectCheck {
public boolean isMatch(Dialect dialect) {
return dialect.supportsPartitionBy();
}
}
public static class SupportSkipLocked implements DialectCheck {
public boolean isMatch(Dialect dialect) {
return dialect.supportsSkipLocked();
}
}
public static class SupportNoWait implements DialectCheck {
public boolean isMatch(Dialect dialect) {
return dialect.supportsNoWait();
}
}
public static class SupportWait implements DialectCheck {
public boolean isMatch(Dialect dialect) {
return dialect.supportsWait();
}
}
public static class SupportDropConstraints implements DialectCheck {
public boolean isMatch(Dialect dialect) {
return dialect.dropConstraints();
}
}
public static class ForceLobAsLastValue implements DialectCheck {
public boolean isMatch(Dialect dialect) {
return dialect.forceLobAsLastValue();
}
}
public static class SupportsJdbcDriverProxying implements DialectCheck {
public boolean isMatch(Dialect dialect) {
return !( dialect instanceof DB2Dialect ) && !( dialect instanceof DerbyDialect );
}
}
public static class SupportsNoColumnInsert implements DialectCheck {
public boolean isMatch(Dialect dialect) {
return dialect.supportsNoColumnsInsert();
}
}
public static class SupportsNClob implements DialectCheck {
@Override
public boolean isMatch(Dialect dialect) {
return dialect.getNationalizationSupport() == NationalizationSupport.EXPLICIT;
// return !(
// dialect instanceof DB2Dialect ||
// dialect instanceof PostgreSQL81Dialect ||
// dialect instanceof SybaseDialect ||
// dialect instanceof MySQLDialect ||
// dialect instanceof CockroachDialect
// );
}
}
public static class SupportsTemporaryTable implements DialectCheck {
public boolean isMatch(Dialect dialect) {
return dialect.supportsTemporaryTables();
}
}
public static class SupportsUnionInSubquery implements DialectCheck {
public boolean isMatch(Dialect dialect) {
return dialect.supportsUnionInSubquery();
}
}
public static class SupportsSubqueryInSelect implements DialectCheck {
public boolean isMatch(Dialect dialect) {
return dialect.supportsSubqueryInSelect();
}
}
public static class SupportsTemporaryTableIdentity implements DialectCheck {
public boolean isMatch(Dialect dialect) {
return dialect.supportsTemporaryTablePrimaryKey();
}
}
public static class SupportsValuesListForInsert implements DialectCheck {
public boolean isMatch(Dialect dialect) {
return dialect.supportsValuesListForInsert();
}
}
public static class SupportsArrayDataTypes implements DialectCheck {
public boolean isMatch(Dialect dialect) {
return dialect.supportsStandardArrays();
}
}
public static class SupportsOrderByInCorrelatedSubquery implements DialectCheck {
public boolean isMatch(Dialect dialect) {
return dialect.supportsOrderByInSubquery()
// For some reason, HANA doesn't support order by in correlated subqueries...
&& !( dialect instanceof AbstractHANADialect );
}
}
}