Java Doc for CriteriaTranslator.java in  » J2EE » Mdarad » org » mdarad » framework » expr » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » J2EE » Mdarad » org.mdarad.framework.expr   Source Cross Reference   Class Diagram   Java Document (Java Doc)   java.lang.Object    org.mdarad.framework.expr.CriteriaTranslator All known Subclasses:   org.mdarad.framework.expr.HibernateCriteriaTranslator, CriteriaTranslator abstract public class CriteriaTranslator (Code) This abstract class is used to translate criteria objects from the MDARAD framework to criteria objects of the persistence framework used. To be used, a class must be derived and the methods getExpressionStatement() and getCriterionObject() must be implemented. At this moment, the only supported translator is for the Hibernate framework (http://www.hibernate.org) author:    Philippe Brouillette version:    1.0 Field Summary final public static  String HIBERNATE_TRANSLATOR      Constructor Summary protected   CriteriaTranslator()      Method Summary abstract public  Object getCriterionObject(Class entity, Collection criteria)      Method that returns the expression statement as an object. abstract public  String getExpressionStatement(Class entity, Collection criteria)      Method that returns the expression statement as a string. public static  CriteriaTranslator getInstance(String translatorType)      Method that create an instance of the CriteriaTranslator selected by the translatorType argument. Field Detail HIBERNATE_TRANSLATOR final public static String HIBERNATE_TRANSLATOR(Code) Constant needed to instanciate the Hibernate Translator Constructor Detail CriteriaTranslator protected CriteriaTranslator()(Code) Default constructor Method Detail getCriterionObject abstract public Object getCriterionObject(Class entity, Collection criteria)(Code) Method that returns the expression statement as an object. Usually, it will returns a SQL statement as a object from the persistence framework. As an example, the object returned for the Hibernate framework is a DetachedCriteria object. Parameters:   entity - persistence type Parameters:   criteria - collection of the criteria Return the expression statement as an object. getExpressionStatement abstract public String getExpressionStatement(Class entity, Collection criteria)(Code) Method that returns the expression statement as a string. Usually, it will returns a SQL statement as a string. Parameters:   entity - persistence type Parameters:   criteria - collection of the criteria The string expression representing the statement (SQL, XML, etc) getInstance public static CriteriaTranslator getInstance(String translatorType) throws InvalidTranslatorTypeException(Code) Method that create an instance of the CriteriaTranslator selected by the translatorType argument. Parameters:   translatorType - The translator type to be instanciated, must be one ofthe constants of this class an instance of the selected translator throws:   InvalidTranslatorTypeException - if the translator type doesn't exist Methods inherited from java.lang.Object native protected Object clone() throws CloneNotSupportedException(Code)(Java Doc) public boolean equals(Object obj)(Code)(Java Doc) protected void finalize() throws Throwable(Code)(Java Doc) final native public Class getClass()(Code)(Java Doc) native public int hashCode()(Code)(Java Doc) final native public void notify()(Code)(Java Doc) final native public void notifyAll()(Code)(Java Doc) public String toString()(Code)(Java Doc) final native public void wait(long timeout) throws InterruptedException(Code)(Java Doc) final public void wait(long timeout, int nanos) throws InterruptedException(Code)(Java Doc) final public void wait() throws InterruptedException(Code)(Java Doc)