com.chadekin.jadys.commons.expression.SqlExpressionBuilder.java Source code

Introduction

Here is the source code for com.chadekin.jadys.commons.expression.SqlExpressionBuilder.java

Source

/**
 *                     GNU General Public License (GPL)
 *                        version 3.0, 29 June 2007
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as
 * published by the Free Software Foundation, either version 3 of the
 * License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public
 * License along with this program.  If not, see
 * <http://www.gnu.org/licenses/gpl-3.0.html>.
 *
 * Copyright (C) 2017 Marc Mamiah.
 * License GPLv3+: GNU GPL version 3
 */
package com.chadekin.jadys.commons.expression;

import java.lang.reflect.Array;
import java.util.Collection;
import com.chadekin.jadys.commons.JadysBuilder;
import com.chadekin.jadys.commons.Operator;
import com.chadekin.jadys.commons.enums.ConditionType;
import org.apache.commons.collections4.CollectionUtils;
import org.apache.commons.lang.StringUtils;

/**
 * SqlExpression
 */
public interface SqlExpressionBuilder extends JadysBuilder<String> {

    public ConditionType getOperatorType();

    public JadysBuilder<String> init(Operator operator, Object value);

    public static boolean isBlankValue(Object value) {
        boolean isBlank = value == null || StringUtils.isBlank(value.toString());
        if (!isBlank) {
            boolean isEmptyCollection = value instanceof Collection && CollectionUtils.isEmpty((Collection) value);
            boolean isEmptyArray = value.getClass().isArray() && Array.getLength(value) == 0;
            isBlank = isEmptyCollection || isEmptyArray;
        }
        return isBlank;
    }

}