?? formula.java
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//$Id: Formula.java 9908 2006-05-08 20:59:20Z max.andersen@jboss.com $package org.hibernate.mapping;import java.io.Serializable;import org.hibernate.dialect.Dialect;import org.hibernate.dialect.function.SQLFunctionRegistry;import org.hibernate.sql.Template;/** * A formula is a derived column value * @author Gavin King */public class Formula implements Selectable, Serializable { private static int formulaUniqueInteger=0; private String formula; private int uniqueInteger; public Formula() { uniqueInteger = formulaUniqueInteger++; } public String getTemplate(Dialect dialect, SQLFunctionRegistry functionRegistry) { return Template.renderWhereStringTemplate(formula, dialect, functionRegistry); } public String getText(Dialect dialect) { return getFormula(); } public String getText() { return getFormula(); } public String getAlias(Dialect dialect) { return "formula" + Integer.toString(uniqueInteger) + '_'; } public String getAlias(Dialect dialect, Table table) { return getAlias(dialect); } public String getFormula() { return formula; } public void setFormula(String string) { formula = string; } public boolean isFormula() { return true; } public String toString() { return this.getClass().getName() + "( " + formula + " )"; }}?? 快捷鍵說明
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