Examples of LoopingAlphabetReader

org.apache.derbyTesting.functionTests.util.streams.LoopingAlphabetReader
A stream returning characters by looping over an alphabet.

Examples of org.apache.derbyTesting.functionTests.util.streams.LoopingAlphabetReader

        int clobLength = 5009;


        // insert a streaming column
        PreparedStatement ps = prepareStatement(
                "insert into testClob (a) values(?)");
        Reader streamReader = new LoopingAlphabetReader(
                clobLength, CharAlphabet.tamil());
        ps.setCharacterStream(1, streamReader, clobLength);
        //DERBY-4312 make sure commit() doesn't interfere
        commit();
        ps.executeUpdate();
        streamReader.close();
        ps.close();
        commit();


        Statement stmt = createStatement();
        ResultSet rs = stmt.executeQuery("SELECT a FROM testClob");
        while (rs.next()) {
            Clob clob = rs.getClob(1);
            assertEquals("FAIL - wrong clob length", clobLength, clob.length());
            Reader clobValue = clob.getCharacterStream();
            Reader origValue = new LoopingAlphabetReader(
                    clobLength, CharAlphabet.tamil());


            assertTrue("New clob value did not match",
                    compareReaders(origValue, clobValue));
            origValue.close();
            clobValue.close();
        }
        rs.close();
        stmt.close();

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Examples of org.apache.derbyTesting.functionTests.util.streams.LoopingAlphabetReader

                            unicodeStrings[arrayIndex],
                            new String(buff));
                    assertEquals("Expected end of stream",
                            -1, clobValue.read());
                } else {
                    Reader origValue = new LoopingAlphabetReader(
                            clobLength, CharAlphabet.tamil());
                    compareReaders(origValue, clobValue);
                }
            } else {
                assertTrue("Clob was null but length was not 0",

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Examples of org.apache.derbyTesting.functionTests.util.streams.LoopingAlphabetReader

        getConnection().setAutoCommit(false);


        PreparedStatement ps = prepareStatement(
                "insert into testClob(b, a) values(?,?)");
        for (int i = 0; i < 3; i++) {
            Reader fis = new LoopingAlphabetReader(300000);
            ps.setInt(1, i);
            ps.setCharacterStream(2, fis, 300000);
            ps.executeUpdate();
            fis.close();
        }
        commit();


        getConnection().setAutoCommit(true);

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Examples of org.apache.derbyTesting.functionTests.util.streams.LoopingAlphabetReader

            PreparedStatement ps,
            CharAlphabet alphabet,
            int lobLength)
        throws Exception
    {
        ps.setCharacterStream(1, new LoopingAlphabetReader(lobLength, alphabet),
                lobLength);
        ps.setInt(2, lobLength);
        ps.setLong(3, -1);
        ps.executeUpdate();
    }

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Examples of org.apache.derbyTesting.functionTests.util.streams.LoopingAlphabetReader

        int clobLength = 5009;


        // insert a streaming column
        PreparedStatement ps = prepareStatement(
                "insert into testClob (a) values(?)");
        Reader streamReader = new LoopingAlphabetReader(
                clobLength, CharAlphabet.tamil());
        ps.setCharacterStream(1, streamReader, clobLength);
        //DERBY-4312 make sure commit() doesn't interfere
        commit();
        ps.executeUpdate();
        streamReader.close();
        ps.close();
        commit();


        Statement stmt = createStatement();
        ResultSet rs = stmt.executeQuery("SELECT a FROM testClob");
        while (rs.next()) {
            Clob clob = rs.getClob(1);
            assertEquals("FAIL - wrong clob length", clobLength, clob.length());
            Reader clobValue = clob.getCharacterStream();
            Reader origValue = new LoopingAlphabetReader(
                    clobLength, CharAlphabet.tamil());


            assertTrue("New clob value did not match",
                    compareReaders(origValue, clobValue));
            origValue.close();
            clobValue.close();
        }
        rs.close();
        stmt.close();

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Examples of org.apache.derbyTesting.functionTests.util.streams.LoopingAlphabetReader

                            unicodeStrings[arrayIndex],
                            new String(buff));
                    assertEquals("Expected end of stream",
                            -1, clobValue.read());
                } else {
                    Reader origValue = new LoopingAlphabetReader(
                            clobLength, CharAlphabet.tamil());
                    compareReaders(origValue, clobValue);
                }
            } else {
                assertTrue("Clob was null but length was not 0",

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Examples of org.apache.derbyTesting.functionTests.util.streams.LoopingAlphabetReader

        getConnection().setAutoCommit(false);


        PreparedStatement ps = prepareStatement(
                "insert into testClob(b, a) values(?,?)");
        for (int i = 0; i < 3; i++) {
            Reader fis = new LoopingAlphabetReader(300000);
            ps.setInt(1, i);
            ps.setCharacterStream(2, fis, 300000);
            ps.executeUpdate();
            fis.close();
        }
        commit();


        getConnection().setAutoCommit(true);

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Examples of org.apache.derbyTesting.functionTests.util.streams.LoopingAlphabetReader

            PreparedStatement ps,
            CharAlphabet alphabet,
            int lobLength)
        throws Exception
    {
        ps.setCharacterStream(1, new LoopingAlphabetReader(lobLength, alphabet),
                lobLength);
        ps.setInt(2, lobLength);
        ps.setLong(3, -1);
        ps.executeUpdate();
    }

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Examples of org.apache.derbyTesting.functionTests.util.streams.LoopingAlphabetReader

     * \u0000 at positions after the size of the internal buffer.
     */
    public void testGetSubString_BiggerThanInternalBuffer()
            throws IOException, SQLException {
        int stringLength = 1*1024*1024; // 1 M characters
        transferData(new LoopingAlphabetReader(stringLength),
                     this.clob.setCharacterStream(1L),
                     TRANSFER_BUFFER_SIZE);
        String obtained = this.clob.getSubString(1, stringLength);
        assertEquals("Incorrect string length",
            stringLength, obtained.length());
        // Obtain the string we inserted for comparison.
        CharArrayWriter charWriter = new CharArrayWriter();
        transferData(new LoopingAlphabetReader(stringLength), charWriter,
                                               TRANSFER_BUFFER_SIZE);
        assertEquals("String do not match",
            charWriter.toString(), obtained);
    }

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Examples of org.apache.derbyTesting.functionTests.util.streams.LoopingAlphabetReader

        PreparedStatement ps = prepareStatement(
                "insert into ClobTestData values (?,?)");
        int initalSize = 128*1024;
        ps.setInt(1, 2);
        ps.setCharacterStream(
                2, new LoopingAlphabetReader(initalSize), initalSize);
        ps.executeUpdate();


        // Select the Clob, and change one character.
        PreparedStatement psSelect = prepareStatement(
                "select dClob from ClobTestData where id = ?");

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