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DirectQueryMetadataRepository.java
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/
DirectQueryMetadataRepository.java
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/*
* 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.query.metadata;
import org.teiid.metadata.BaseColumn.NullType;
import org.teiid.metadata.MetadataFactory;
import org.teiid.metadata.MetadataRepository;
import org.teiid.metadata.Procedure;
import org.teiid.metadata.ProcedureParameter;
import org.teiid.metadata.ProcedureParameter.Type;
import org.teiid.translator.ExecutionFactory;
import org.teiid.translator.TranslatorException;
import org.teiid.translator.TypeFacility;
/**
* This Metadata repository adds the "native" procedure to all the execution factories that support them.
*/
public class DirectQueryMetadataRepository extends MetadataRepository {
@Override
public void loadMetadata(MetadataFactory factory, ExecutionFactory executionFactory, Object connectionFactory) throws TranslatorException {
if (executionFactory != null && executionFactory.supportsDirectQueryProcedure()) {
Procedure p = factory.addProcedure(executionFactory.getDirectQueryProcedureName());
p.setAnnotation("Invokes translator with a native query that returns results in array of values"); //$NON-NLS-1$
ProcedureParameter param = factory.addProcedureParameter("request", TypeFacility.RUNTIME_NAMES.STRING, Type.In, p); //$NON-NLS-1$
param.setAnnotation("The native query to execute"); //$NON-NLS-1$
param.setNullType(NullType.No_Nulls);
param = factory.addProcedureParameter("variable", TypeFacility.RUNTIME_NAMES.OBJECT, Type.In, p); //$NON-NLS-1$
param.setAnnotation("Any number of varaibles; usage will vary by translator"); //$NON-NLS-1$
param.setNullType(NullType.Nullable);
param.setVarArg(true);
factory.addProcedureResultSetColumn("tuple", TypeFacility.RUNTIME_NAMES.OBJECT, p); //$NON-NLS-1$
}
}
}