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- /*
- Copyright (c) 2011 James Ahlborn
-
- 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.healthmarketscience.jackcess.impl.complex;
-
- import java.io.IOException;
-
- import com.healthmarketscience.jackcess.Column;
- import com.healthmarketscience.jackcess.Row;
- import com.healthmarketscience.jackcess.Table;
- import com.healthmarketscience.jackcess.complex.ComplexDataType;
- import com.healthmarketscience.jackcess.complex.ComplexValue;
- import com.healthmarketscience.jackcess.complex.ComplexValueForeignKey;
- import com.healthmarketscience.jackcess.complex.MultiValueColumnInfo;
- import com.healthmarketscience.jackcess.complex.SingleValue;
-
- /**
- * Complex column info for a column holding multiple simple values per row.
- *
- * @author James Ahlborn
- */
- public class MultiValueColumnInfoImpl extends ComplexColumnInfoImpl<SingleValue>
- implements MultiValueColumnInfo
- {
- private final Column _valueCol;
-
- public MultiValueColumnInfoImpl(Column column, int complexId,
- Table typeObjTable, Table flatTable)
- throws IOException
- {
- super(column, complexId, typeObjTable, flatTable);
-
- _valueCol = getTypeColumns().get(0);
- }
-
- @Override
- public ComplexDataType getType()
- {
- return ComplexDataType.MULTI_VALUE;
- }
-
- public Column getValueColumn() {
- return _valueCol;
- }
-
- @Override
- protected SingleValueImpl toValue(
- ComplexValueForeignKey complexValueFk,
- Row rawValue)
- {
- ComplexValue.Id id = getValueId(rawValue);
- Object value = getValueColumn().getRowValue(rawValue);
-
- return new SingleValueImpl(id, complexValueFk, value);
- }
-
- @Override
- protected Object[] asRow(Object[] row, SingleValue value) throws IOException {
- super.asRow(row, value);
- getValueColumn().setRowValue(row, value.get());
- return row;
- }
-
- public static SingleValue newSingleValue(Object value) {
- return newSingleValue(INVALID_FK, value);
- }
-
- public static SingleValue newSingleValue(
- ComplexValueForeignKey complexValueFk, Object value) {
- return new SingleValueImpl(INVALID_ID, complexValueFk, value);
- }
-
-
- private static class SingleValueImpl extends ComplexValueImpl
- implements SingleValue
- {
- private Object _value;
-
- private SingleValueImpl(Id id, ComplexValueForeignKey complexValueFk,
- Object value)
- {
- super(id, complexValueFk);
- _value = value;
- }
-
- @Override
- public Object get() {
- return _value;
- }
-
- @Override
- public void set(Object value) {
- _value = value;
- }
-
- @Override
- public void update() throws IOException {
- getComplexValueForeignKey().updateMultiValue(this);
- }
-
- @Override
- public void delete() throws IOException {
- getComplexValueForeignKey().deleteMultiValue(this);
- }
-
- @Override
- public String toString()
- {
- return "SingleValue(" + getComplexValueForeignKey() + "," + getId() +
- ") " + get();
- }
- }
- }
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