Examples of org.apache.tapestry.contrib.jdbc.IStatement

Package org.apache.tapestry.contrib.jdbc

Examples of org.apache.tapestry.contrib.jdbc.IStatement

org.apache.tapestry.contrib.jdbc.IStatement
A wrapper around {@link java.sql.Statement} or {@link java.sql.PreparedStatement} which hides the differencesbetween the two. @version $Id: IStatement.java 243791 2004-02-19 17:38:13Z hlship $ @author Howard Lewis Ship @see org.apache.tapestry.contrib.jdbc.StatementAssembly#createStatement(Connection)

    }


    public Publisher[] getPublishers()
    {
        Connection connection = null;
        IStatement statement = null;
        ResultSet set = null;


        List list = new ArrayList();


        try
        {
            connection = getConnection();


            StatementAssembly assembly = new StatementAssembly();


            assembly.newLine("SELECT PUBLISHER_ID, NAME");
            assembly.newLine("FROM PUBLISHER");
            assembly.newLine("ORDER BY NAME");


            statement = assembly.createStatement(connection);


            set = statement.executeQuery();


            while(set.next())
            {
                Integer primaryKey = (Integer) set.getObject(1);
                String name = set.getString(2);

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     */


    public Person[] getPersons()
    {
        Connection connection = null;
        IStatement statement = null;
        ResultSet set = null;


        List list = new ArrayList();


        try
        {
            connection = getConnection();


            StatementAssembly assembly = buildBasePersonQuery();
            assembly.newLine("ORDER BY LAST_NAME, FIRST_NAME");


            statement = assembly.createStatement(connection);


            set = statement.executeQuery();


            Object[] columns = new Object[Person.NUM_COLUMNS];


            while(set.next())
            {

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    public Person getPerson(Integer personId)
        throws FinderException
    {
        Connection connection = null;
        IStatement statement = null;
        ResultSet set = null;


        Person result = null;


        try
        {
            connection = getConnection();


            StatementAssembly assembly = buildBasePersonQuery();
            assembly.newLine("WHERE ");
            assembly.add("PERSON_ID = ");
            assembly.addParameter(personId);
            assembly.newLine("ORDER BY LAST_NAME, FIRST_NAME");


            statement = assembly.createStatement(connection);


            set = statement.executeQuery();


            if (!set.next())
                throw new FinderException("Person #" + personId
                        + " does not exist.");

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    public Book getBook(Integer bookId)
        throws FinderException
    {
        Connection connection = null;
        IStatement statement = null;
        ResultSet set = null;


        Book result = null;


        try
        {
            connection = getConnection();


            StatementAssembly assembly = buildBaseBookQuery();
            assembly.addSep(" AND ");
            assembly.add("book.BOOK_ID = ");
            assembly.addParameter(bookId);


            statement = assembly.createStatement(connection);


            set = statement.executeQuery();


            if (!set.next())
                throw new FinderException("Book " + bookId + " does not exist.");


            Object[] columns = new Object[Book.NUM_COLUMNS];

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    private void executeUpdate(StatementAssembly assembly)
        throws XRemoveException
    {
        Connection connection = null;
        IStatement statement = null;


        try
        {
            connection = getConnection();


            statement = assembly.createStatement(connection);


            statement.executeUpdate();


            statement.close();
            statement = null;


            connection.close();
            connection = null;
        }

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    private void validateUniquePerson(String firstName, String lastName,
            String email)
        throws RegistrationException
    {
        Connection connection = null;
        IStatement statement = null;
        ResultSet set = null;


        String trimmedEmail = email.trim().toLowerCase();
        String trimmedLastName = lastName.trim().toLowerCase();
        String trimmedFirstName = firstName.trim().toLowerCase();


        try
        {
            connection = getConnection();


            StatementAssembly assembly = new StatementAssembly();
            assembly.newLine("SELECT PERSON_ID");
            assembly.newLine("FROM PERSON");
            assembly.newLine("WHERE ");


            assembly.add("LOWER(EMAIL) = ");
            assembly.addParameter(trimmedEmail);


            statement = assembly.createStatement(connection);
            set = statement.executeQuery();


            if (set.next())
                throw new RegistrationException(
                        "Email address is already in use by another user.");


            close(null, statement, set);


            assembly = new StatementAssembly();
            assembly.newLine("SELECT PERSON_ID");
            assembly.newLine("FROM PERSON");
            assembly.newLine("WHERE ");


            assembly.add("LOWER(FIRST_NAME) = ");
            assembly.addParameter(trimmedFirstName);
            assembly.addSep(" AND ");
            assembly.add("LOWER(LAST_NAME) = ");
            assembly.addParameter(trimmedLastName);


            statement = assembly.createStatement(connection);
            set = statement.executeQuery();


            if (set.next())
                throw new RegistrationException(
                        "Name provided is already in use by another user.");

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     * The master query is for querying by some mixture of title, author and publisher.
     */


    public int masterQuery(MasterQueryParameters parameters, SortOrdering sortOrdering)
    {
        IStatement statement = null;
        Connection connection = null;


        // Forget any current results.


        _results = null;

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     * Queries on books owned by a given person, sorted by title.
     */


    public int ownerQuery(Integer ownerId, SortOrdering sortOrdering)
    {
        IStatement statement = null;
        Connection connection = null;


        // Forget any current results.


        _results = null;

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     * Queries on books held (borrowed) by a given person, sorted by title.
     */


    public int holderQuery(Integer holderId, SortOrdering sortOrdering)
    {
        IStatement statement = null;
        Connection connection = null;


        // Forget any current results.


        _results = null;

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        return getResultCount();
    }


    public int borrowerQuery(Integer borrowerId, SortOrdering sortOrdering)
    {
        IStatement statement = null;
        Connection connection = null;


        // Forget any current results.


        _results = null;

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Related Classes of org.apache.tapestry.contrib.jdbc.IStatement

org.apache.tapestry.vlib.ejb.impl.BookQueryBean

org.apache.tapestry.vlib.ejb.impl.OperationsBean

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