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hammer core
There is a newer version: 0.7.2
package cn.featherfly.hammer.mapping;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

/**
 * 
 * 属性与列的映射对象
 * 
 *
 * @author zhongj
 * @since 0.1.0
 * @version 0.1.0
 */
/**
 * 
 * PropertyMapping
 * 
 *
 * @author zhongj
 */
public class PropertyMapping {

    /**
     */
    public PropertyMapping() {

    }

    private String propertyName;

    private String repositoryFieldName;

    private Class propertyType;

    private boolean primaryKey;

    private String defaultValue;

    private Map propertyMappings = new HashMap<>(0);

    private PropertyMapping parent;

    /**
     * add nested property mapping
     *
     * @param propertyMapping propertyMapping
     * @return this
     */
    public PropertyMapping add(PropertyMapping propertyMapping) {
        propertyMapping.parent = this;
        propertyMappings.put(propertyMapping.getRepositoryFieldName(), propertyMapping);
        return this;
    }

    /**
     * @return 返回propertyType
     */
    public Class getPropertyType() {
        return propertyType;
    }

    /**
     * @param propertyType 设置propertyType
     */
    public void setPropertyType(Class propertyType) {
        this.propertyType = propertyType;
    }

    /**
     * @return 返回primaryKey
     */
    public boolean isPrimaryKey() {
        return primaryKey;
    }

    /**
     * @param primaryKey 设置primaryKey
     */
    public void setPrimaryKey(boolean primaryKey) {
        this.primaryKey = primaryKey;
    }

    /**
     * @return 返回propertyName
     */
    public String getPropertyName() {
        return propertyName;
    }

    /**
     * @param propertyName 设置propertyName
     */
    public void setPropertyName(String propertyName) {
        this.propertyName = propertyName;
    }

    /**
     * @return 返回repositoryFiledName
     */
    public String getRepositoryFieldName() {
        return repositoryFieldName;
    }

    /**
     * @param repositoryFieldName 设置repositoryFieldName
     */
    public void setRepositoryFieldName(String repositoryFieldName) {
        this.repositoryFieldName = repositoryFieldName;
    }

    /**
     * 返回defaultValue
     *
     * @return defaultValue
     */
    public String getDefaultValue() {
        return defaultValue;
    }

    /**
     * 设置defaultValue
     *
     * @param defaultValue defaultValue
     */
    public void setDefaultValue(String defaultValue) {
        this.defaultValue = defaultValue;
    }

    /**
     * 返回parent
     *
     * @return parent
     */
    public PropertyMapping getParent() {
        return parent;
    }

    /**
     * 返回PropertyMappings
     *
     * @return PropertyMappings
     */
    public List getPropertyMappings() {
        return new ArrayList<>(propertyMappings.values());
    }

    /**
     * 
     * 返回指定属性名称的属性映射. 没有找到返回null.
     * 
     *
     * @param propertyName 属性名称
     * @return 属性映射对象
     */
    public PropertyMapping getPropertyMapping(String propertyName) {
        for (PropertyMapping pm : propertyMappings.values()) {
            if (pm.getPropertyName().equals(propertyName)) {
                return pm;
            }
        }
        return null;
    }

    /**
     * 
     * 通过持久化字段（数据库字段）的名称返回指定属性映射. 没有找到返回null.
     * 
     *
     * @param repositoryFiledName 持久化字段（数据库字段）
     * @return PropertyMapping
     */
    public PropertyMapping getPropertyMappingByPersitField(String repositoryFiledName) {
        return propertyMappings.get(repositoryFiledName);
    }

    /**
     * {@inheritDoc}
     */
    @Override
    public String toString() {
        return "PropertyMapping [propertyName=" + propertyName + ", repositoryFieldName=" + repositoryFieldName
                + ", propertyType=" + propertyType + ", primaryKey=" + primaryKey + ", defaultValue=" + defaultValue
                + ", propertyMappings=" + propertyMappings + ", parent=" + parent + "]";
    }
}