Java tutorial
/******************************************************************************* * * Copyright 2012 Impetus Infotech. * * * * 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.impetus.kundera.property.accessor; import java.sql.Date; import org.apache.commons.lang.StringUtils; import org.slf4j.Logger; import org.slf4j.LoggerFactory; import com.impetus.kundera.property.PropertyAccessException; import com.impetus.kundera.property.PropertyAccessor; /** * The Class SQLDateAccessor. * * @author amresh.singh */ public class SQLDateAccessor implements PropertyAccessor<Date> { public static Logger log = LoggerFactory.getLogger(SQLDateAccessor.class); /* * (non-Javadoc) * * @see com.impetus.kundera.property.PropertyAccessor#fromBytes(byte[]) */ @Override public Date fromBytes(Class targetClass, byte[] b) { try { if (b == null) { return null; } // In case date.getTime() is stored in DB. LongAccessor longAccessor = new LongAccessor(); return new Date(longAccessor.fromBytes(targetClass, b)); } catch (Exception e) { log.error("Error occured, Caused by {}.", e); throw new PropertyAccessException(e); } } /* * (non-Javadoc) * * @see * com.impetus.kundera.property.PropertyAccessor#toBytes(java.lang.Object) */ @Override public byte[] toBytes(Object object) { try { if (object == null) { return null; } LongAccessor longAccessor = new LongAccessor(); return longAccessor.toBytes(((Date) object).getTime()); // return DATE_FORMATTER.format(((Date) // date)).getBytes(Constants.ENCODING); } catch (Exception e) { log.error("Error occured, Caused by {}.", e); throw new PropertyAccessException(e); } } /* * (non-Javadoc) * * @see * com.impetus.kundera.property.PropertyAccessor#toString(java.lang.Object) */ @Override public String toString(Object object) { Date date = (Date) object; if (date == null) { return null; } return String.valueOf(date.getTime())/*date.toString()*/; } /* * (non-Javadoc) * * @see * com.impetus.kundera.property.PropertyAccessor#fromString(java.lang.String * ) */ @Override public Date fromString(Class targetClass, String s) { if (s == null) { return null; } if (StringUtils.isNumeric(s)) { return new Date(Long.parseLong(s)); } Date d = Date.valueOf(s); return d; } @Override public Date getCopy(Object object) { Date d = (Date) object; return d != null ? new Date(d.getTime()) : null; } public Date getInstance(Class<?> clazz) { return new Date(Integer.MAX_VALUE); } }