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/*
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 *
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 * and Distribution License("CDDL") (collectively, the "License").  You
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 * obtain a copy of the License at
 * https://glassfish.dev.java.net/public/CDDL+GPL_1_1.html
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package org.glassfish.ha.store.criteria;

import org.glassfish.ha.store.criteria.spi.*;
import org.glassfish.ha.store.spi.AttributeMetadata;

/**
 * A Class to construct portable Criteria objects
 *
 * @author [email protected]
 *
 */
public class ExpressionBuilder {

    Class entryClazz;

    public ExpressionBuilder(Class entryClazz) {
        this.entryClazz = entryClazz;
    }

    public Criteria setCriteria(Expression expr) {
        Criteria c = new Criteria(entryClazz);
        c.setExpression(expr);

        return c;
    }

    public  AttributeAccessNode attr(AttributeMetadata meta) {
        return new AttributeAccessNode(meta);
    }

    public  LiteralNode literal(Class type, T value) {
        return new LiteralNode(type, value);
    }

    public  LogicalExpressionNode eq(T value, AttributeMetadata meta) {
        return new LogicalExpressionNode(Opcode.EQ,
                new LiteralNode(meta.getAttributeType(), value),
                new AttributeAccessNode(meta));
    }

    public  LogicalExpressionNode eq(AttributeMetadata meta, T value) {
        return new LogicalExpressionNode(Opcode.EQ,
                new AttributeAccessNode(meta),
                new LiteralNode(meta.getAttributeType(), value));
    }

    public  LogicalExpressionNode eq(AttributeMetadata meta1,
                                           AttributeMetadata meta2) {
        return new LogicalExpressionNode(Opcode.EQ,
                new AttributeAccessNode(meta1),
                new AttributeAccessNode(meta2));
    }

    public  LogicalExpressionNode eq(ExpressionNode expr1, ExpressionNode expr2) {
        return new LogicalExpressionNode(Opcode.EQ, expr1, expr2);
    }

    public  LogicalExpressionNode eq(LiteralNode value, AttributeMetadata meta) {
        return new LogicalExpressionNode(Opcode.EQ,
                value, new AttributeAccessNode(meta));
    }

    public  LogicalExpressionNode eq(AttributeMetadata meta, LiteralNode value) {
        return new LogicalExpressionNode(Opcode.EQ,
                new AttributeAccessNode(meta), value);
    }

}