com.github.adejanovski.cassandra.jdbc.JdbcBoolean Maven / Gradle / Ivy

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JDBC wrapper for the DataStax CQL Java Driver.

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/*
 *
 *   Licensed under the Apache License, Version 2.0 (the "License");
 *   you may not use this file except in compliance with the License.
 *   You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 *   Unless required by applicable law or agreed to in writing, software
 *   distributed under the License is distributed on an "AS IS" BASIS,
 *   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *   See the License for the specific language governing permissions and
 *   limitations under the License.
 */
package com.github.adejanovski.cassandra.jdbc;

import java.nio.ByteBuffer;
import java.sql.Types;


public class JdbcBoolean extends AbstractJdbcType
{
    public static final JdbcBoolean instance = new JdbcBoolean();

    JdbcBoolean() {}

    public boolean isCaseSensitive()
    {
        return false;
    }

    public int getScale(Boolean obj)
    {
        return -1;
    }

    public int getPrecision(Boolean obj)
    {
        return -1;
    }

    public boolean isCurrency()
    {
        return false;
    }

    public boolean isSigned()
    {
        return false;
    }

    public String toString(Boolean obj)
    {
        return obj.toString();
    }

    public boolean needsQuotes()
    {
        return false;
    }

    public String getString(ByteBuffer bytes)
    {
        if (bytes.remaining() == 0)
        {
            return Boolean.FALSE.toString();
        }
        if (bytes.remaining() != 1)
        {
            throw new MarshalException("A boolean is stored in exactly 1 byte: "+bytes.remaining());
        }
        byte value = bytes.get(bytes.position());

        return value ==0 ? Boolean.FALSE.toString(): Boolean.TRUE.toString();
    }

    public Class getType()
    {
        return Boolean.class;
    }

    public int getJdbcType()
    {
        return Types.BOOLEAN;
    }

    public Boolean compose(Object value)
    {
        return (Boolean)value;
    }

    public Object decompose(Boolean value)
    {
      return (value==null) ? null
                           : (Object) value;
    }
}