Java tutorial
/** * Copyright (c) 2000-2012 Liferay, Inc. All rights reserved. * * This library is free software; you can redistribute it and/or modify it under * the terms of the GNU Lesser General Public License as published by the Free * Software Foundation; either version 2.1 of the License, or (at your option) * any later version. * * This library is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS * FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more * details. */ package com.liferay.portlet.mobiledevicerules.service.persistence; import com.liferay.portal.kernel.dao.orm.QueryPos; import com.liferay.portal.kernel.dao.orm.QueryUtil; import com.liferay.portal.kernel.dao.orm.SQLQuery; import com.liferay.portal.kernel.dao.orm.Session; import com.liferay.portal.kernel.dao.orm.Type; import com.liferay.portal.kernel.exception.SystemException; import com.liferay.portal.kernel.util.StringPool; import com.liferay.portal.kernel.util.Validator; import com.liferay.portal.service.persistence.impl.BasePersistenceImpl; import com.liferay.portlet.mobiledevicerules.model.MDRRuleGroup; import com.liferay.portlet.mobiledevicerules.model.impl.MDRRuleGroupImpl; import com.liferay.util.dao.orm.CustomSQLUtil; import java.util.Iterator; import java.util.List; /** * @author Edward Han * @author Eduardo Lundgren */ public class MDRRuleGroupFinderImpl extends BasePersistenceImpl<MDRRuleGroup> implements MDRRuleGroupFinder { public static String COUNT_BY_G_N = MDRRuleGroupFinder.class.getName() + ".countByG_N"; public static String FIND_BY_G_N = MDRRuleGroupFinder.class.getName() + ".findByG_N"; public int countByKeywords(long groupId, String keywords) throws SystemException { String[] names = null; boolean andOperator = false; if (Validator.isNotNull(keywords)) { names = CustomSQLUtil.keywords(keywords); } else { andOperator = true; } return countByG_N(groupId, names, andOperator); } public int countByG_N(long groupId, String name, boolean andOperator) throws SystemException { String[] names = CustomSQLUtil.keywords(name); return countByG_N(groupId, names, andOperator); } public int countByG_N(long groupId, String[] names, boolean andOperator) throws SystemException { names = CustomSQLUtil.keywords(names); Session session = null; try { session = openSession(); String sql = CustomSQLUtil.get(COUNT_BY_G_N); sql = CustomSQLUtil.replaceKeywords(sql, "lower(name)", StringPool.LIKE, true, names); sql = CustomSQLUtil.replaceAndOperator(sql, false); SQLQuery q = session.createSQLQuery(sql); q.addScalar(COUNT_COLUMN_NAME, Type.LONG); QueryPos qPos = QueryPos.getInstance(q); qPos.add(groupId); qPos.add(names, 2); Iterator<Long> itr = q.iterate(); if (itr.hasNext()) { Long count = itr.next(); if (count != null) { return count.intValue(); } } return 0; } catch (Exception e) { throw new SystemException(e); } finally { closeSession(session); } } public List<MDRRuleGroup> findByKeywords(long groupId, String keywords, int start, int end) throws SystemException { String[] names = null; boolean andOperator = false; if (Validator.isNotNull(keywords)) { names = CustomSQLUtil.keywords(keywords); } else { andOperator = true; } return findByG_N(groupId, names, andOperator, start, end); } public List<MDRRuleGroup> findByG_N(long groupId, String name, boolean andOperator) throws SystemException { return findByG_N(groupId, name, andOperator, QueryUtil.ALL_POS, QueryUtil.ALL_POS); } public List<MDRRuleGroup> findByG_N(long groupId, String name, boolean andOperator, int start, int end) throws SystemException { String[] names = CustomSQLUtil.keywords(name); return findByG_N(groupId, names, andOperator, start, end); } public List<MDRRuleGroup> findByG_N(long groupId, String[] names, boolean andOperator, int start, int end) throws SystemException { names = CustomSQLUtil.keywords(names); Session session = null; try { session = openSession(); String sql = CustomSQLUtil.get(FIND_BY_G_N); sql = CustomSQLUtil.replaceKeywords(sql, "lower(name)", StringPool.LIKE, true, names); sql = CustomSQLUtil.replaceAndOperator(sql, andOperator); SQLQuery q = session.createSQLQuery(sql); q.addEntity("MDRRuleGroup", MDRRuleGroupImpl.class); QueryPos qPos = QueryPos.getInstance(q); qPos.add(groupId); qPos.add(names, 2); return (List<MDRRuleGroup>) QueryUtil.list(q, getDialect(), start, end); } catch (Exception e) { throw new SystemException(e); } finally { closeSession(session); } } }