org.hibernate.mapping.Formula.java Source code

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Here is the source code for org.hibernate.mapping.Formula.java

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/*
 * Hibernate, Relational Persistence for Idiomatic Java
 *
 * License: GNU Lesser General Public License (LGPL), version 2.1 or later.
 * See the lgpl.txt file in the root directory or <http://www.gnu.org/licenses/lgpl-2.1.html>.
 */
package org.hibernate.mapping;

import java.io.Serializable;
import java.util.concurrent.atomic.AtomicInteger;

import org.hibernate.dialect.Dialect;
import org.hibernate.dialect.function.SQLFunctionRegistry;
import org.hibernate.internal.util.StringHelper;
import org.hibernate.loader.internal.AliasConstantsHelper;
import org.hibernate.sql.Template;

import static org.hibernate.internal.util.StringHelper.safeInterning;

/**
 * A formula is a derived column value
 * @author Gavin King
 */
public class Formula implements Selectable, Serializable {

    private static final AtomicInteger formulaUniqueInteger = new AtomicInteger();

    private String formula;
    private final int uniqueInteger;

    public Formula() {
        uniqueInteger = formulaUniqueInteger.incrementAndGet();
    }

    public Formula(String formula) {
        this();
        this.formula = formula;
    }

    @Override
    public String getTemplate(Dialect dialect, SQLFunctionRegistry functionRegistry) {
        String template = Template.renderWhereStringTemplate(formula, dialect, functionRegistry);
        return safeInterning(StringHelper.replace(template, "{alias}", Template.TEMPLATE));
    }

    @Override
    public String getText(Dialect dialect) {
        return getFormula();
    }

    @Override
    public String getText() {
        return getFormula();
    }

    @Override
    public String getAlias(Dialect dialect) {
        return "formula" + AliasConstantsHelper.get(uniqueInteger);
    }

    @Override
    public String getAlias(Dialect dialect, Table table) {
        return getAlias(dialect);
    }

    public String getFormula() {
        return formula;
    }

    public void setFormula(String string) {
        formula = string;
    }

    @Override
    public boolean isFormula() {
        return true;
    }

    @Override
    public String toString() {
        return this.getClass().getName() + "( " + formula + " )";
    }
}