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A library for relational-database-based persistence in Java.

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//
// Depot library - a Java relational persistence library
// http://code.google.com/p/depot/source/browse/trunk/LICENSE

package com.samskivert.depot.impl.expression;

import com.samskivert.depot.expression.SQLExpression;
import com.samskivert.depot.impl.FragmentVisitor;
import com.samskivert.depot.impl.expression.Function.ManyArgFun;

public abstract class ConditionalFun
{
    public static class Coalesce extends ManyArgFun {
        public Coalesce (SQLExpression... args) {
            super(args);
        }
        public Coalesce (SQLExpression arg1, SQLExpression arg2) {
            super(arg1, arg2);
        }
        public Object accept (FragmentVisitor visitor) {
            return visitor.visit(this);
        }
        public String getCanonicalFunctionName () {
            return "coalesce";
        }
    }

    public static class Greatest extends ManyArgFun {
        public Greatest (SQLExpression... args) {
            super(args);
        }
        public Greatest (SQLExpression arg1, SQLExpression arg2) {
            super(arg1, arg2);
        }
        public Object accept (FragmentVisitor visitor) {
            return visitor.visit(this);
        }
        public String getCanonicalFunctionName () {
            return "greatest";
        }
    }

    public static class Least extends ManyArgFun {
        public Least (SQLExpression... args) {
            super(args);
        }
        public Least (SQLExpression arg1, SQLExpression arg2) {
            super(arg1, arg2);
        }
        public Object accept (FragmentVisitor visitor) {
            return visitor.visit(this);
        }
        public String getCanonicalFunctionName () {
            return "least";
        }
    }
}