/*
* Copyright 2013-2014 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.github.dactiv.orm.core.hibernate.restriction.support;
import org.apache.commons.lang3.StringUtils;
import com.github.dactiv.orm.core.MatchValue;
import com.github.dactiv.orm.core.RestrictionNames;
import com.github.dactiv.orm.core.hibernate.restriction.CriterionSingleValueSupport;
import org.hibernate.criterion.Criterion;
import org.hibernate.criterion.Restrictions;
/**
* 等于约束 (from object o where o.value = ?) RestrictionName:EQ
* <p>
* 表达式:EQ属性类型_属性名称[_OR_属性名称...]
* </p>
*
* @author maurice
*
*/
public class EqRestriction extends CriterionSingleValueSupport {
/*
* (non-Javadoc)
* @see com.github.dactiv.orm.core.hibernate.CriterionBuilder#getRestrictionName()
*/
public String getRestrictionName() {
return RestrictionNames.EQ;
}
/*
* (non-Javadoc)
* @see com.github.dactiv.orm.core.hibernate.restriction.CriterionSingleValueSupport#getMatchValue(java.lang.String, java.lang.Class)
*/
public MatchValue getMatchValue(String matchValue, Class<?> FieldType) {
MatchValue matchValueModel = super.getMatchValue(matchValue, FieldType);
for (int i = 0; i < matchValueModel.getValues().size(); i++) {
Object value = matchValueModel.getValues().get(i);
if (value instanceof String && StringUtils.equals(value.toString(),"null")) {
matchValueModel.getValues().remove(i);
matchValueModel.getValues().add(i, null);
}
}
return matchValueModel;
}
public Criterion build(String propertyName, Object value) {
return value == null ? Restrictions.isNull(propertyName) : Restrictions.eq(propertyName, value);
}
}