/*
* Copyright 2004-2015 the Seasar Foundation and the Others.
*
* 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 org.seasar.extension.dataset.impl;
import java.util.Iterator;
import java.util.Map;
import org.seasar.extension.dataset.ColumnType;
import org.seasar.extension.dataset.DataColumn;
import org.seasar.extension.dataset.DataRow;
import org.seasar.extension.dataset.DataTable;
import org.seasar.extension.dataset.RowState;
import org.seasar.extension.dataset.states.RowStates;
import org.seasar.extension.dataset.types.ColumnTypes;
import org.seasar.extension.jdbc.ColumnNotFoundRuntimeException;
import org.seasar.framework.beans.BeanDesc;
import org.seasar.framework.beans.PropertyDesc;
import org.seasar.framework.beans.factory.BeanDescFactory;
import org.seasar.framework.util.ArrayMap;
import org.seasar.framework.util.CaseInsensitiveMap;
import org.seasar.framework.util.StringUtil;
/**
* {@link DataRow}の実装クラスです。
*
* @author higa
*
*/
public class DataRowImpl implements DataRow {
private DataTable table_;
private ArrayMap values_ = new CaseInsensitiveMap();
private RowState state_ = RowStates.UNCHANGED;
/**
* {@link DataRowImpl}を作成します。
*
* @param table
*/
public DataRowImpl(DataTable table) {
table_ = table;
initValues();
}
private void initValues() {
for (int i = 0; i < table_.getColumnSize(); ++i) {
values_.put(table_.getColumnName(i), null);
}
}
/**
* @see org.seasar.extension.dataset.DataRow#getValue(int)
*/
public Object getValue(int index) {
return values_.get(index);
}
/**
* @see org.seasar.extension.dataset.DataRow#getValue(java.lang.String)
*/
public Object getValue(String columnName)
throws ColumnNotFoundRuntimeException {
DataColumn column = table_.getColumn(columnName);
return values_.get(column.getColumnIndex());
}
/**
* @see org.seasar.extension.dataset.DataRow#setValue(java.lang.String,
* java.lang.Object)
*/
public void setValue(String columnName, Object value)
throws ColumnNotFoundRuntimeException {
DataColumn column = table_.getColumn(columnName);
values_.put(columnName, column.convert(value));
modify();
}
/**
* @see org.seasar.extension.dataset.DataRow#setValue(int, java.lang.Object)
*/
public void setValue(int index, Object value) {
DataColumn column = table_.getColumn(index);
values_.set(index, column.convert(value));
modify();
}
private void modify() {
if (state_.equals(RowStates.UNCHANGED)) {
state_ = RowStates.MODIFIED;
}
}
/**
* @see org.seasar.extension.dataset.DataRow#remove()
*/
public void remove() {
state_ = RowStates.REMOVED;
}
/**
* @see org.seasar.extension.dataset.DataRow#getTable()
*/
public DataTable getTable() {
return table_;
}
/**
* @see org.seasar.extension.dataset.DataRow#getState()
*/
public RowState getState() {
return state_;
}
/**
* @see org.seasar.extension.dataset.DataRow#setState(org.seasar.extension.dataset.RowState)
*/
public void setState(RowState state) {
state_ = state;
}
public String toString() {
StringBuffer buf = new StringBuffer(100);
buf.append("{");
for (int i = 0; i < values_.size(); ++i) {
buf.append(getValue(i));
buf.append(", ");
}
buf.setLength(buf.length() - 2);
buf.append('}');
return buf.toString();
}
public boolean equals(Object o) {
if (o == this) {
return true;
}
if (!(o instanceof DataRow)) {
return false;
}
DataRow other = (DataRow) o;
for (int i = 0; i < table_.getColumnSize(); ++i) {
String columnName = table_.getColumnName(i);
Object value = values_.get(i);
Object otherValue = other.getValue(columnName);
ColumnType ct = ColumnTypes.getColumnType(value);
if (ct.equals(value, otherValue)) {
continue;
}
return false;
}
return true;
}
/**
* @see org.seasar.extension.dataset.DataRow#copyFrom(java.lang.Object)
*/
public void copyFrom(Object source) {
if (source instanceof Map) {
copyFromMap((Map) source);
} else if (source instanceof DataRow) {
copyFromRow((DataRow) source);
} else {
copyFromBean(source);
}
}
private void copyFromMap(Map source) {
for (Iterator i = source.keySet().iterator(); i.hasNext();) {
String columnName = (String) i.next();
if (table_.hasColumn(columnName)) {
Object value = source.get(columnName);
setValue(columnName, convertValue(value));
}
}
}
private void copyFromRow(DataRow source) {
for (int i = 0; i < source.getTable().getColumnSize(); ++i) {
String columnName = source.getTable().getColumnName(i);
if (table_.hasColumn(columnName)) {
Object value = source.getValue(i);
setValue(columnName, convertValue(value));
}
}
}
private void copyFromBean(Object source) {
BeanDesc beanDesc = BeanDescFactory.getBeanDesc(source.getClass());
for (int i = 0; i < table_.getColumnSize(); ++i) {
String columnName = table_.getColumnName(i);
String propertyName = StringUtil.replace(columnName, "_", "");
if (beanDesc.hasPropertyDesc(propertyName)) {
PropertyDesc pd = beanDesc.getPropertyDesc(propertyName);
Object value = pd.getValue(source);
setValue(columnName, convertValue(value));
}
}
}
private Object convertValue(Object value) {
if (value == null) {
return null;
}
ColumnType columnType = ColumnTypes.getColumnType(value.getClass());
return columnType.convert(value, null);
}
}