import java.lang.reflect.Constructor;
import java.security.Principal;
import java.sql.Connection;
+import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.ResultSetMetaData;
import java.sql.SQLException;
-import java.sql.Statement;
-import java.util.Iterator;
-import java.util.Properties;
-import java.util.regex.Matcher;
-import java.util.regex.Pattern;
-
-import javax.naming.NamingEnumeration;
-import javax.naming.NamingException;
-import javax.naming.directory.Attribute;
+
import javax.naming.directory.Attributes;
import javax.naming.directory.BasicAttribute;
import javax.naming.directory.BasicAttributes;
import org.apache.commons.dbcp.DriverManagerConnectionFactory;
import org.apache.commons.dbcp.PoolableConnectionFactory;
import org.apache.commons.dbcp.PoolingDataSource;
-import org.apache.commons.pool.ObjectPool;
import org.apache.commons.pool.impl.GenericObjectPool;
+import org.apache.commons.pool.impl.StackKeyedObjectPoolFactory;
import org.apache.log4j.Logger;
import org.apache.log4j.Priority;
import org.w3c.dom.Element;
import edu.internet2.middleware.shibboleth.aa.attrresolv.DataConnectorPlugIn;
import edu.internet2.middleware.shibboleth.aa.attrresolv.Dependencies;
import edu.internet2.middleware.shibboleth.aa.attrresolv.ResolutionPlugInException;
-import edu.internet2.middleware.shibboleth.aa.attrresolv.ResolverAttribute;
/*
* Built at the Canada Institute for Scientific and Technical Information (CISTI
* Data Connector that uses JDBC to access user attributes stored in databases.
*
* @author David Dearman (dearman@cs.dal.ca)
+ * @author Walter Hoehn (wassa@columbia.edu)
+ * @author Scott Cantor
*/
public class JDBCDataConnector extends BaseResolutionPlugIn implements DataConnectorPlugIn {
private static Logger log = Logger.getLogger(JDBCDataConnector.class.getName());
- protected Properties props = new Properties();
protected String searchVal;
protected DataSource dataSource;
protected JDBCAttributeExtractor extractor;
+ protected JDBCStatementCreator statementCreator;
public JDBCDataConnector(Element element) throws ResolutionPlugInException {
super(element);
//Get the query string
- NodeList searchNode = element.getElementsByTagNameNS(AttributeResolver.resolverNamespace, "Search");
- searchVal = ((Element) searchNode.item(0)).getAttribute("query");
-
+ NodeList queryNodes = element.getElementsByTagNameNS(AttributeResolver.resolverNamespace, "Query");
+ Node tnode = queryNodes.item(0).getFirstChild();
+ if (tnode != null && tnode.getNodeType() == Node.TEXT_NODE) {
+ searchVal = tnode.getNodeValue();
+ }
if (searchVal == null || searchVal.equals("")) {
- Node tnode = searchNode.item(0).getFirstChild();
- if (tnode != null && tnode.getNodeType() == Node.TEXT_NODE) {
- searchVal = tnode.getNodeValue();
- }
- if (searchVal == null || searchVal.equals("")) {
- log.error("Search requires a specified query field");
- //TODO stinky error message
- throw new ResolutionPlugInException("mySQLDataConnection requires a \"Search\" specification");
- }
- } else {
- log.debug("Search Query: (" + searchVal + ")");
+ log.error("Database query must be specified.");
+ throw new ResolutionPlugInException("Database query must be specified.");
}
- //Instantiate an attribute extractor, using the default if none is specified
- String aeClassName = ((Element) searchNode.item(0)).getAttribute("attributeExtractor");
- if (aeClassName == null || aeClassName.equals("")) {
- aeClassName = DefaultAE.class.getName();
+ //Load the supplied JDBC driver
+ String dbDriverName = element.getAttribute("dbDriver");
+ if (dbDriverName != null && (!dbDriverName.equals(""))) {
+ loadDriver(dbDriverName);
}
- try {
- Class aeClass = Class.forName(aeClassName);
- Constructor constructor = aeClass.getConstructor(null);
- extractor = (JDBCAttributeExtractor) constructor.newInstance(null);
- log.debug("Supplied attributeExtractor class loaded.");
- } catch (ClassNotFoundException e) {
- log.error("The supplied Attribute Extractor class could not be found: " + e);
- throw new ResolutionPlugInException(
- "The supplied Attribute Extractor class could not be found: " + e.getMessage());
- } catch (Exception e) {
- log.error("Unable to instantiate Attribute Extractor implementation: " + e);
- throw new ResolutionPlugInException(
- "Unable to instantiate Attribute Extractor implementation: " + e.getMessage());
- }
+ //Load site-specific implementation classes
+ setupAttributeExtractor(
+ (Element) element.getElementsByTagNameNS(AttributeResolver.resolverNamespace, "AttributeExtractor").item(
+ 0));
+ setupStatementCreator(
+ (Element) element.getElementsByTagNameNS(AttributeResolver.resolverNamespace, "StatementCreator").item(0));
- //Grab all other properties
- NodeList propertiesNode = element.getElementsByTagNameNS(AttributeResolver.resolverNamespace, "Property");
- for (int i = 0; propertiesNode.getLength() > i; i++) {
- Element property = (Element) propertiesNode.item(i);
- String propertiesName = property.getAttribute("name");
- String propertiesValue = property.getAttribute("value");
-
- if (propertiesName != null
- && !propertiesName.equals("")
- && propertiesValue != null
- && !propertiesValue.equals("")) {
- props.setProperty(propertiesName, propertiesValue);
- log.debug("Property: (" + propertiesName + ")");
- log.debug(" Value: (" + propertiesValue + ")");
- } else {
- log.error("Property is malformed.");
- throw new ResolutionPlugInException("Property is malformed.");
+ //Initialize a pooling Data Source
+ int maxActive = 0;
+ int maxIdle = 0;
+ try {
+ if (element.getAttribute("maxActive") != null) {
+ maxActive = Integer.parseInt(element.getAttribute("maxActive"));
+ }
+ if (element.getAttribute("maxIdle") != null) {
+ maxIdle = Integer.parseInt(element.getAttribute("maxIdle"));
}
+ } catch (NumberFormatException e) {
+ log.error("Malformed pooling limits: using defaults.");
}
-
- if (props.getProperty("dbURL") == null) {
+ if (element.getAttribute("dbURL") == null || element.getAttribute("dbURL").equals("")) {
log.error("JDBC connection requires a dbURL property");
throw new ResolutionPlugInException("JDBCDataConnection requires a \"dbURL\" property");
}
+ setupDataSource(element.getAttribute("dbURL"), maxActive, maxIdle);
+ }
- //Load the supplied JDBC driver
- loadDriver((String) props.get("dbDriver"));
-
- //Setup the Pool
- GenericObjectPool genericObjectPool = new GenericObjectPool(null);
+ /**
+ * Initialize a Pooling Data Source
+ */
+ private void setupDataSource(String dbURL, int maxActive, int maxIdle) throws ResolutionPlugInException {
- try {
- if (props.getProperty("maxActiveConnections") != null) {
- genericObjectPool.setMaxActive(Integer.parseInt(props.getProperty("maxActiveConnections")));
- }
- if (props.getProperty("maxIdleConnections") != null) {
- genericObjectPool.setMaxIdle(Integer.parseInt(props.getProperty("maxIdleConnections")));
- }
- } catch (NumberFormatException e) {
- log.error("Malformed pooling configuration settings: using defaults.");
+ GenericObjectPool objectPool = new GenericObjectPool(null);
+
+ if (maxActive > 0) {
+ objectPool.setMaxActive(maxActive);
}
- genericObjectPool.setWhenExhaustedAction(GenericObjectPool.WHEN_EXHAUSTED_BLOCK);
+ if (maxIdle > 0) {
+ objectPool.setMaxIdle(maxIdle);
+ }
+
+ objectPool.setWhenExhaustedAction(GenericObjectPool.WHEN_EXHAUSTED_BLOCK);
- ObjectPool connPool = genericObjectPool;
ConnectionFactory connFactory = null;
PoolableConnectionFactory poolConnFactory = null;
try {
- connFactory = new DriverManagerConnectionFactory(props.getProperty("dbURL"), null);
+ connFactory = new DriverManagerConnectionFactory(dbURL, null);
log.debug("Connection factory initialized.");
} catch (Exception ex) {
log.error(
}
try {
- poolConnFactory = new PoolableConnectionFactory(connFactory, connPool, null, null, false, true);
+ new StackKeyedObjectPoolFactory();
+ poolConnFactory =
+ new PoolableConnectionFactory(
+ connFactory,
+ objectPool,
+ new StackKeyedObjectPoolFactory(),
+ null,
+ false,
+ true);
} catch (Exception ex) {
log.debug("Poolable connection factory error");
}
- dataSource = new PoolingDataSource(connPool);
+ dataSource = new PoolingDataSource(objectPool);
+ log.info("Data Source initialized.");
try {
dataSource.setLogWriter(
new Log4jPrintWriter(Logger.getLogger(JDBCDataConnector.class.getName() + ".Pool"), Priority.DEBUG));
}
}
- protected String substitute(String source, String pattern, boolean quote, Dependencies depends) {
- Matcher m = Pattern.compile(pattern).matcher(source);
- while (m.find()) {
- String field = source.substring(m.start() + 1, m.end() - 1);
- if (field != null && field.length() > 0) {
- StringBuffer buf = new StringBuffer();
-
- //Look for an attribute dependency.
- ResolverAttribute dep = depends.getAttributeResolution(field);
- if (dep != null) {
- Iterator iter = dep.getValues();
- while (iter.hasNext()) {
- if (buf.length() > 0)
- buf = buf.append(',');
- if (quote)
- buf = buf.append("'");
- buf = buf.append(iter.next());
- if (quote)
- buf = buf.append("'");
- }
- }
-
- //If no values found, cycle over the connectors.
- Iterator connDeps = connectorDependencyIds.iterator();
- while (buf.length() == 0 && connDeps.hasNext()) {
- Attributes attrs = depends.getConnectorResolution((String) connDeps.next());
- if (attrs != null) {
- Attribute attr = attrs.get(field);
- if (attr != null) {
- try {
- NamingEnumeration vals = attr.getAll();
- while (vals.hasMore()) {
- if (buf.length() > 0)
- buf = buf.append(',');
- if (quote)
- buf = buf.append("'");
- buf = buf.append(vals.next());
- if (quote)
- buf = buf.append("'");
- }
- } catch (NamingException e) {
- // Auto-generated catch block
- }
- }
- }
- }
-
- if (buf.length() == 0) {
- log.warn(
- "Unable to find any values to substitute in query for "
- + field
- + ", so using the empty string");
- }
- source = source.replaceAll(m.group(), buf.toString());
- m.reset(source);
- }
+ /**
+ * Instantiate an Attribute Extractor, using the default if none was configured
+ */
+ private void setupAttributeExtractor(Element config) throws ResolutionPlugInException {
+
+ String className = null;
+ if (config != null) {
+ className = config.getAttribute("class");
+ }
+ if (className == null || className.equals("")) {
+ log.debug("Using default Attribute Extractor.");
+ className = DefaultAE.class.getName();
+ }
+ try {
+ Class aeClass = Class.forName(className);
+ extractor = (JDBCAttributeExtractor) aeClass.newInstance();
+ log.debug("Attribute Extractor implementation loaded.");
+
+ } catch (ClassNotFoundException e) {
+ log.error("The supplied Attribute Extractor class could not be found: " + e);
+ throw new ResolutionPlugInException(
+ "The supplied Attribute Extractor class could not be found: " + e.getMessage());
+ } catch (Exception e) {
+ log.error("Unable to instantiate Attribute Extractor implementation: " + e);
+ throw new ResolutionPlugInException(
+ "Unable to instantiate Attribute Extractor implementation: " + e.getMessage());
}
- return source;
}
- public Attributes resolve(Principal principal, String requester, Dependencies depends)
- throws ResolutionPlugInException {
+ /**
+ * Instantiate a Statement Creator, using the default if none was configured
+ */
+ private void setupStatementCreator(Element config) throws ResolutionPlugInException {
- log.debug("Resolving connector: (" + getId() + ")");
- log.debug(getId() + " resolving for principal: (" + principal.getName() + ")");
- log.debug("The query string before inserting substitutions: " + searchVal);
+ String scClassName = null;
+ if (config != null) {
+ scClassName = config.getAttribute("class");
+ }
+ if (scClassName == null || scClassName.equals("")) {
+ log.debug("Using default Statement Creator.");
+ scClassName = DefaultStatementCreator.class.getName();
+ }
+ try {
+ Class scClass = Class.forName(scClassName);
- //Replaces %PRINCIPAL% in the query string with its value
- String convertedSearchVal = searchVal.replaceAll("%PRINCIPAL%", principal.getName());
- convertedSearchVal = convertedSearchVal.replaceAll("@PRINCIPAL@", "'" + principal.getName() + "'");
+ Class[] params = new Class[1];
+ params[0] = Class.forName("org.w3c.dom.Element");
+ try {
+ Constructor implementorConstructor = scClass.getConstructor(params);
+ Object[] args = new Object[1];
+ args[0] = config;
+ log.debug("Initializing Statement Creator of type (" + scClass.getName() + ").");
+ statementCreator = (JDBCStatementCreator) implementorConstructor.newInstance(args);
+ } catch (NoSuchMethodException nsme) {
+ log.debug(
+ "Implementation constructor does have a parameterized constructor, attempting to load default.");
+ statementCreator = (JDBCStatementCreator) scClass.newInstance();
+ }
- //Find all delimited substitutions and replace with the named attribute value(s).
- convertedSearchVal = substitute(convertedSearchVal, "%.+%", false, depends);
- convertedSearchVal = substitute(convertedSearchVal, "@.+@", true, depends);
+ log.debug("Statement Creator implementation loaded.");
- //Replace any escaped substitution delimiters.
- convertedSearchVal = convertedSearchVal.replaceAll("\\%", "%");
- convertedSearchVal = convertedSearchVal.replaceAll("\\@", "@");
+ } catch (ClassNotFoundException e) {
+ log.error("The supplied Statement Creator class could not be found: " + e);
+ throw new ResolutionPlugInException(
+ "The supplied Statement Creator class could not be found: " + e.getMessage());
+ } catch (Exception e) {
+ log.error("Unable to instantiate Statement Creator implementation: " + e);
+ throw new ResolutionPlugInException(
+ "Unable to instantiate Statement Creator implementation: " + e.getMessage());
+ }
+ }
- log.debug("The query string after inserting substitutions: " + convertedSearchVal);
+ public Attributes resolve(Principal principal, String requester, Dependencies depends)
+ throws ResolutionPlugInException {
- /**
- * Retrieves a connection from the connection pool
- */
+ log.debug("Resolving connector: (" + getId() + ")");
+
+ //Retrieve a connection from the connection pool
Connection conn = null;
try {
conn = dataSource.getConnection();
throw new ResolutionPlugInException("Pool didn't return a propertly initialized connection.");
}
+ //Setup and execute a (pooled) prepared statement
ResultSet rs = null;
try {
- //Gets the results set for the query
- rs = executeQuery(conn, convertedSearchVal);
- if (!rs.next())
+ PreparedStatement preparedStatement = conn.prepareStatement(searchVal);
+ statementCreator.create(preparedStatement, principal, requester, depends);
+ rs = preparedStatement.executeQuery();
+ preparedStatement.close();
+
+ if (!rs.next()) {
return new BasicAttributes();
+ }
+ } catch (JDBCStatementCreatorException e) {
+ log.error("An ERROR occured while constructing the query");
+ throw new ResolutionPlugInException("An ERROR occured while constructing the query: " + e.getMessage());
} catch (SQLException e) {
log.error("An ERROR occured while executing the query");
throw new ResolutionPlugInException("An ERROR occured while executing the query: " + e.getMessage());
}
+ //Extract attributes from the ResultSet
try {
return extractor.extractAttributes(rs);
log.debug("Driver loaded.");
}
- /**
- * Execute the users query
- * @param query The query the user wishes to execute
- * @return The result of the users <code>query</code>
- * @return null if an error occurs during execution
- * @throws SQLException If an error occurs while executing the query
- */
- public ResultSet executeQuery(Connection conn, String query) throws SQLException {
- log.debug("Users Query: " + query);
- Statement stmt = conn.createStatement();
- return stmt.executeQuery(query);
- }
-
private class Log4jPrintWriter extends PrintWriter {
private Priority level;
}
}
}
-
/**
* The default attribute extractor.
*/
private static Logger log = Logger.getLogger(DefaultAE.class.getName());
- // Constructor
- public DefaultAE() {
- }
-
/**
* Method of extracting the attributes from the supplied result set.
*
public BasicAttributes extractAttributes(ResultSet rs) throws JDBCAttributeExtractorException {
BasicAttributes attributes = new BasicAttributes();
- log.debug("Using default Attribute Extractor");
-
try {
ResultSetMetaData rsmd = rs.getMetaData();
int numColumns = rsmd.getColumnCount();
return attributes;
}
}
+
+class DefaultStatementCreator implements JDBCStatementCreator {
+
+ private static Logger log = Logger.getLogger(DefaultStatementCreator.class.getName());
+
+ public void create(
+ PreparedStatement preparedStatement,
+ Principal principal,
+ String requester,
+ Dependencies depends)
+ throws JDBCStatementCreatorException {
+
+ try {
+ log.debug("Creating prepared statement. Substituting principal: (" + principal.getName() + ")");
+ preparedStatement.setString(1, principal.getName());
+ } catch (SQLException e) {
+ log.error("Encountered an error while creating prepared statement: " + e);
+ throw new JDBCStatementCreatorException(
+ "Encountered an error while creating prepared statement: " + e.getMessage());
+ }
+ }
+}
+
+
+
+
+
--- /dev/null
+/*
+ * The Shibboleth License, Version 1.
+ * Copyright (c) 2002
+ * University Corporation for Advanced Internet Development, Inc.
+ * All rights reserved
+ *
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * Redistributions of source code must retain the above copyright notice, this
+ * list of conditions and the following disclaimer.
+ *
+ * Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution, if any, must include
+ * the following acknowledgment: "This product includes software developed by
+ * the University Corporation for Advanced Internet Development
+ * <http://www.ucaid.edu>Internet2 Project. Alternately, this acknowledegement
+ * may appear in the software itself, if and wherever such third-party
+ * acknowledgments normally appear.
+ *
+ * Neither the name of Shibboleth nor the names of its contributors, nor
+ * Internet2, nor the University Corporation for Advanced Internet Development,
+ * Inc., nor UCAID may be used to endorse or promote products derived from this
+ * software without specific prior written permission. For written permission,
+ * please contact shibboleth@shibboleth.org
+ *
+ * Products derived from this software may not be called Shibboleth, Internet2,
+ * UCAID, or the University Corporation for Advanced Internet Development, nor
+ * may Shibboleth appear in their name, without prior written permission of the
+ * University Corporation for Advanced Internet Development.
+ *
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND WITH ALL FAULTS. ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
+ * PARTICULAR PURPOSE, AND NON-INFRINGEMENT ARE DISCLAIMED AND THE ENTIRE RISK
+ * OF SATISFACTORY QUALITY, PERFORMANCE, ACCURACY, AND EFFORT IS WITH LICENSEE.
+ * IN NO EVENT SHALL THE COPYRIGHT OWNER, CONTRIBUTORS OR THE UNIVERSITY
+ * CORPORATION FOR ADVANCED INTERNET DEVELOPMENT, INC. BE LIABLE FOR ANY DIRECT,
+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+package edu.internet2.middleware.shibboleth.aa.attrresolv.provider;
+
+import java.security.Principal;
+import java.sql.PreparedStatement;
+
+import edu.internet2.middleware.shibboleth.aa.attrresolv.Dependencies;
+
+/**
+ * Definition for the JDBC Statement Creator. Implementations are responsible for
+ * setting all parameters on the specified prepared statement.
+ *
+ * @author Walter Hoehn (wassa@columbia.edu)
+ */
+public interface JDBCStatementCreator {
+
+ void create(PreparedStatement preparedStatement, Principal principal, String requester, Dependencies depends) throws JDBCStatementCreatorException;
+
+}
--- /dev/null
+/*
+ * The Shibboleth License, Version 1.
+ * Copyright (c) 2002
+ * University Corporation for Advanced Internet Development, Inc.
+ * All rights reserved
+ *
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * Redistributions of source code must retain the above copyright notice, this
+ * list of conditions and the following disclaimer.
+ *
+ * Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution, if any, must include
+ * the following acknowledgment: "This product includes software developed by
+ * the University Corporation for Advanced Internet Development
+ * <http://www.ucaid.edu>Internet2 Project. Alternately, this acknowledegement
+ * may appear in the software itself, if and wherever such third-party
+ * acknowledgments normally appear.
+ *
+ * Neither the name of Shibboleth nor the names of its contributors, nor
+ * Internet2, nor the University Corporation for Advanced Internet Development,
+ * Inc., nor UCAID may be used to endorse or promote products derived from this
+ * software without specific prior written permission. For written permission,
+ * please contact shibboleth@shibboleth.org
+ *
+ * Products derived from this software may not be called Shibboleth, Internet2,
+ * UCAID, or the University Corporation for Advanced Internet Development, nor
+ * may Shibboleth appear in their name, without prior written permission of the
+ * University Corporation for Advanced Internet Development.
+ *
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND WITH ALL FAULTS. ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
+ * PARTICULAR PURPOSE, AND NON-INFRINGEMENT ARE DISCLAIMED AND THE ENTIRE RISK
+ * OF SATISFACTORY QUALITY, PERFORMANCE, ACCURACY, AND EFFORT IS WITH LICENSEE.
+ * IN NO EVENT SHALL THE COPYRIGHT OWNER, CONTRIBUTORS OR THE UNIVERSITY
+ * CORPORATION FOR ADVANCED INTERNET DEVELOPMENT, INC. BE LIABLE FOR ANY DIRECT,
+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+package edu.internet2.middleware.shibboleth.aa.attrresolv.provider;
+
+/**
+ * Exception thrown by implementations of <code>JDBCStatementCreator</code> to signal that an error
+ * occurred while creating a prepared statement.
+ *
+ * @author Walter Hoehn (wassa@columbia.edu)
+ */
+public class JDBCStatementCreatorException extends Exception {
+
+ public JDBCStatementCreatorException() {
+ super();
+ }
+
+ public JDBCStatementCreatorException(String s) {
+ super(s);
+ }
+}
projects / java-idp.git / commitdiff