Java tutorial
/* * Copyright 2008 biaoping.yin * * 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.frameworkset.orm.engine.model; /* * * 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. */ import java.io.Serializable; import org.apache.commons.lang.StringUtils; import org.xml.sax.Attributes; import com.frameworkset.orm.platform.Platform; /** * A Class for holding data about a column used in an Application. * * @author <a href="mailto:mpoeschl@marmot.at>Martin Poeschl</a> * @version $Id: Domain.java,v 1.7 2004/02/22 06:27:19 jmcnally Exp $ */ public class Domain implements Serializable { private String name; private String description; private String size; private String scale; /** type as defined in schema.xml */ private SchemaType torqueType; private String sqlType; private String defaultValue; /** * Creates a new instance with a <code>null</code> name. */ public Domain() { this.name = null; } /** * Creates a new Domain and set the name * * @param name column name */ public Domain(String name) { this.name = name; } /** * Creates a new Domain and set the name */ public Domain(SchemaType type) { this.name = null; this.torqueType = type; this.sqlType = type.getName(); } /** * Creates a new Domain and set the name */ public Domain(SchemaType type, String sqlType) { this.name = null; this.torqueType = type; this.sqlType = sqlType; } /** * Creates a new Domain and set the name */ public Domain(SchemaType type, String sqlType, String size, String scale) { this.name = null; this.torqueType = type; this.sqlType = sqlType; this.size = size; this.scale = scale; } /** * Creates a new Domain and set the name */ public Domain(SchemaType type, String sqlType, String size) { this.name = null; this.torqueType = type; this.sqlType = sqlType; this.size = size; } public Domain(Domain domain) { copy(domain); } public void copy(Domain domain) { this.defaultValue = domain.getDefaultValue(); this.description = domain.getDescription(); this.name = domain.getName(); this.scale = domain.getScale(); this.size = domain.getSize(); this.sqlType = domain.getSqlType(); this.torqueType = domain.getType(); } /** * Imports a column from an XML specification */ public void loadFromXML(Attributes attrib, Platform platform) { SchemaType schemaType = SchemaType.getEnum(attrib.getValue("type")); copy(platform.getDomainForSchemaType(schemaType)); //Name name = attrib.getValue("name"); //Default column value. defaultValue = attrib.getValue("default"); size = attrib.getValue("size"); scale = attrib.getValue("scale"); description = attrib.getValue("description"); } /** * @return Returns the description. */ public String getDescription() { return description; } /** * @param description The description to set. */ public void setDescription(String description) { this.description = description; } /** * @return Returns the name. */ public String getName() { return name; } /** * @param name The name to set. */ public void setName(String name) { this.name = name; } /** * @return Returns the scale. */ public String getScale() { return scale; } /** * @param scale The scale to set. */ public void setScale(String scale) { this.scale = scale; } /** * Replaces the size if the new value is not null. * * @param value The size to set. */ public void replaceScale(String value) { this.scale = StringUtils.defaultString(value, getScale()); } /** * @return Returns the size. */ public String getSize() { return size; } /** * @param size The size to set. */ public void setSize(String size) { this.size = size; } /** * Replaces the size if the new value is not null. * * @param value The size to set. */ public void replaceSize(String value) { this.size = StringUtils.defaultString(value, getSize()); } /** * @return Returns the torqueType. */ public SchemaType getType() { return torqueType; } /** * @param torqueType The torqueType to set. */ public void setType(SchemaType torqueType) { this.torqueType = torqueType; } /** * @param torqueType The torqueType to set. */ public void setType(String torqueType) { this.torqueType = SchemaType.getEnum(torqueType); } /** * Replaces the default value if the new value is not null. * * @param value The defaultValue to set. */ public void replaceType(String value) { this.torqueType = SchemaType.getEnum(StringUtils.defaultString(value, getType().getName())); } /** * @return Returns the defaultValue. */ public String getDefaultValue() { return defaultValue; } /** * Return a string that will give this column a default value. * @deprecated */ public String getDefaultSetting() { StringBuffer dflt = new StringBuffer(0); if (getDefaultValue() != null) { dflt.append("default "); if (TypeMap.isTextType(getType())) { // TODO: Properly SQL-escape the text. dflt.append('\'').append(getDefaultValue()).append('\''); } else { dflt.append(getDefaultValue()); } } return dflt.toString(); } /** * @param defaultValue The defaultValue to set. */ public void setDefaultValue(String defaultValue) { this.defaultValue = defaultValue; } /** * Replaces the default value if the new value is not null. * * @param value The defaultValue to set. */ public void replaceDefaultValue(String value) { this.defaultValue = StringUtils.defaultString(value, getDefaultValue()); } /** * @return Returns the sqlType. */ public String getSqlType() { return sqlType; } /** * @param sqlType The sqlType to set. */ public void setSqlType(String sqlType) { this.sqlType = sqlType; } /** * Return the size and scale in brackets for use in an sql schema. * * @return size and scale or an empty String if there are no values * available. */ public String printSize() { if (size != null && scale != null) { return '(' + size + ',' + scale + ')'; } else if (size != null) { return '(' + size + ')'; } else { return ""; } } }