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Backend for the W3C CSS Validation Service

There is a newer version: 1.0.8

// $Id$
// @author Yves Lafon 
//
// (c) COPYRIGHT MIT, ERCIM and Keio University, 2012.
// Please first read the full copyright statement in file COPYRIGHT.html

package org.w3c.css.values;

import org.w3c.css.properties.css.CssProperty;
import org.w3c.css.util.ApplContext;
import org.w3c.css.util.InvalidParamException;

import java.math.BigDecimal;

public abstract class CssCheckableValue extends CssValue {

    abstract public boolean isPositive();

    abstract public void checkPositiveness(ApplContext ac, CssProperty property)
            throws InvalidParamException;

    abstract public boolean isStrictlyPositive();

    abstract public boolean isZero();

    abstract public void checkStrictPositiveness(ApplContext ac, CssProperty property)
            throws InvalidParamException;

    abstract public void warnPositiveness(ApplContext ac, CssProperty property);

    abstract public void checkEqualsZero(ApplContext ac, CssProperty property)
            throws InvalidParamException;

    abstract public void warnEqualsZero(ApplContext ac, CssProperty property);

    public boolean isInteger() {
        return false;
    }

    /**
     * check if the value is an integer
     *
     * @param ac       the validation context
     * @param property the property the value is defined in
     * @throws InvalidParamException
     */
    public void checkInteger(ApplContext ac, CssProperty property)
            throws InvalidParamException {
    }


    /**
     * set the native value
     *
     * @param v the BigDecimal
     */
    public abstract void setValue(BigDecimal v);

    /**
     * Get this value as acheckable value
     *
     * @return
     */
    public CssCheckableValue getCheckableValue() {
        return this;
    }
}