/*
* JBoss, Home of Professional Open Source.
* See the COPYRIGHT.txt file distributed with this work for information
* regarding copyright ownership. Some portions may be licensed
* to Red Hat, Inc. under one or more contributor license agreements.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
* 02110-1301 USA.
*/
package org.teiid.translator.jpa;
import java.util.*;
import javax.persistence.EntityManager;
import javax.persistence.EntityManagerFactory;
import org.teiid.language.Argument;
import org.teiid.language.Call;
import org.teiid.language.Command;
import org.teiid.language.QueryExpression;
import org.teiid.language.visitor.SQLStringVisitor;
import org.teiid.metadata.RuntimeMetadata;
import org.teiid.translator.*;
import org.teiid.translator.jdbc.AliasModifier;
import org.teiid.translator.jdbc.FunctionModifier;
@Translator(name="jpa2", description="A translator for JPA2 based entities")
public class JPA2ExecutionFactory extends ExecutionFactory<EntityManagerFactory, EntityManager> {
private Map<String, FunctionModifier> functionModifiers = new TreeMap<String, FunctionModifier>(String.CASE_INSENSITIVE_ORDER);
@Override
public void start() throws TranslatorException {
super.start();
setSupportsInnerJoins(true);
setSupportsOrderBy(true);
setSupportsSelectDistinct(true);
setSupportedJoinCriteria(SupportedJoinCriteria.KEY);
setSupportsOuterJoins(true);
registerFunctionModifier(SourceSystemFunctions.LCASE, new AliasModifier("lower")); //$NON-NLS-1$
registerFunctionModifier(SourceSystemFunctions.UCASE, new AliasModifier("upper")); //$NON-NLS-1$
registerFunctionModifier(SourceSystemFunctions.CURDATE, new AliasModifier("current_date")); //$NON-NLS-1$
registerFunctionModifier(SourceSystemFunctions.CURTIME, new AliasModifier("current_time")); //$NON-NLS-1$
}
@Override
public EntityManager getConnection(EntityManagerFactory factory, ExecutionContext executionContext) throws TranslatorException {
if (factory == null) {
return null;
}
return factory.createEntityManager();
}
@Override
public void closeConnection(EntityManager connection, EntityManagerFactory factory) {
connection.close();
}
@Override
public ResultSetExecution createResultSetExecution(QueryExpression command, ExecutionContext executionContext, RuntimeMetadata metadata, EntityManager connection) throws TranslatorException {
return new JPQLQueryExecution(this, command, executionContext, metadata, connection);
}
@Override
public ProcedureExecution createProcedureExecution(Call command, ExecutionContext executionContext, RuntimeMetadata metadata, EntityManager connection) throws TranslatorException {
String nativeQuery = command.getMetadataObject().getProperty(SQLStringVisitor.TEIID_NATIVE_QUERY, false);
if (nativeQuery != null) {
return new JPQLDirectQueryExecution(command.getArguments(), command, executionContext, metadata, connection, nativeQuery, false);
}
throw new TranslatorException("Missing native-query extension metadata."); //$NON-NLS-1$
}
@Override
public UpdateExecution createUpdateExecution(Command command, ExecutionContext executionContext, RuntimeMetadata metadata, EntityManager connection) throws TranslatorException {
return new JPQLUpdateExecution(command, executionContext, metadata, connection);
}
@Override
public ProcedureExecution createDirectExecution(List<Argument> arguments, Command command, ExecutionContext executionContext, RuntimeMetadata metadata, EntityManager connection) throws TranslatorException {
return new JPQLDirectQueryExecution(arguments.subList(1, arguments.size()), command, executionContext, metadata, connection, (String)arguments.get(0).getArgumentValue().getValue(), true);
}
@Override
public MetadataProcessor<EntityManager> getMetadataProcessor(){
return new JPAMetadataProcessor();
}
@Override
public boolean supportsSelectExpression() {
return true;
}
@Override
public boolean supportsAliasedTable() {
return true;
}
@Override
public boolean supportsInlineViews() {
return true;
}
@Override
public boolean supportsCompareCriteriaEquals() {
return true;
}
@Override
public boolean supportsCompareCriteriaOrdered() {
return true;
}
@Override
public boolean supportsLikeCriteria() {
return true;
}
@Override
public boolean supportsInCriteria() {
return true;
}
@Override
public boolean supportsInCriteriaSubquery() {
return false;
}
@Override
public boolean supportsIsNullCriteria() {
return true;
}
@Override
public boolean supportsOrCriteria() {
return true;
}
@Override
public boolean supportsNotCriteria() {
return true;
}
@Override
public boolean supportsExistsCriteria() {
return true;
}
@Override
public boolean supportsGroupBy() {
return true;
}
@Override
public boolean supportsHaving() {
return true;
}
@Override
public boolean supportsAggregatesSum() {
return true;
}
@Override
public boolean supportsAggregatesAvg() {
return true;
}
@Override
public boolean supportsAggregatesMin() {
return true;
}
@Override
public boolean supportsAggregatesMax() {
return true;
}
@Override
public boolean supportsAggregatesCount() {
return true;
}
@Override
public boolean supportsAggregatesCountStar() {
return true;
}
@Override
public boolean supportsAggregatesDistinct() {
return true;
}
@Override
public boolean supportsScalarSubqueries() {
return true;
}
@Override
public boolean useAnsiJoin() {
return true;
}
@Override
public boolean supportsDependentJoins() {
return true;
}
@Override
public boolean supportsSelfJoins() {
return true;
}
@Override
public List<String> getSupportedFunctions() {
List<String> supportedFunctions = new ArrayList<String>();
supportedFunctions.addAll(getDefaultSupportedFunctions());
// String functions
supportedFunctions.add(SourceSystemFunctions.CONCAT);
supportedFunctions.add(SourceSystemFunctions.SUBSTRING);
supportedFunctions.add(SourceSystemFunctions.TRIM);
supportedFunctions.add(SourceSystemFunctions.LCASE);
supportedFunctions.add(SourceSystemFunctions.UCASE);
supportedFunctions.add(SourceSystemFunctions.LENGTH);
supportedFunctions.add(SourceSystemFunctions.LOCATE);
// airthamatic functions
supportedFunctions.add(SourceSystemFunctions.ABS);
supportedFunctions.add(SourceSystemFunctions.SQRT);
supportedFunctions.add(SourceSystemFunctions.MOD);
supportedFunctions.add(SourceSystemFunctions.CURDATE);
supportedFunctions.add(SourceSystemFunctions.CURTIME);
supportedFunctions.add(SourceSystemFunctions.COALESCE);
supportedFunctions.add(SourceSystemFunctions.NULLIF);
return supportedFunctions;
}
/**
* Return a map of function name to FunctionModifier.
* @return Map of function name to FunctionModifier.
*/
public Map<String, FunctionModifier> getFunctionModifiers() {
return functionModifiers;
}
/**
* Add the {@link FunctionModifier} to the set of known modifiers.
* @param name
* @param modifier
*/
public void registerFunctionModifier(String name, FunctionModifier modifier) {
this.functionModifiers.put(name, modifier);
}
public List<String> getDefaultSupportedFunctions(){
return Arrays.asList(new String[] { "+", "-", "*", "/" }); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$
}
}