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- /*
- Copyright (c) 2008 Health Market Science, Inc.
-
- 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.query;
-
- import java.util.List;
-
- import static com.healthmarketscience.jackcess.impl.query.QueryFormat.*;
- import com.healthmarketscience.jackcess.query.UpdateQuery;
-
-
- /**
- * Concrete Query subclass which represents a row update query, e.g.:
- * {@code UPDATE <table> SET <newValues>}
- *
- * @author James Ahlborn
- */
- public class UpdateQueryImpl extends QueryImpl implements UpdateQuery
- {
-
- public UpdateQueryImpl(String name, List<Row> rows, int objectId,
- int objectFlag) {
- super(name, rows, objectId, objectFlag, Type.UPDATE);
- }
-
- @Override
- public List<String> getTargetTables()
- {
- return super.getFromTables();
- }
-
- @Override
- public String getRemoteDbPath()
- {
- return super.getFromRemoteDbPath();
- }
-
- @Override
- public String getRemoteDbType()
- {
- return super.getFromRemoteDbType();
- }
-
- @Override
- public List<String> getNewValues()
- {
- return (new RowFormatter(getColumnRows()) {
- @Override protected void format(StringBuilder builder, Row row) {
- toOptionalQuotedExpr(builder, row.name2, true)
- .append(" = ").append(row.expression);
- }
- }).format();
- }
-
- @Override
- public String getWhereExpression()
- {
- return super.getWhereExpression();
- }
-
- @Override
- protected void toSQLString(StringBuilder builder)
- {
- builder.append("UPDATE ").append(getTargetTables());
- toRemoteDb(builder, getRemoteDbPath(), getRemoteDbType());
-
- builder.append(NEWLINE).append("SET ").append(getNewValues());
-
- String whereExpr = getWhereExpression();
- if(whereExpr != null) {
- builder.append(NEWLINE).append("WHERE ").append(whereExpr);
- }
- }
-
- }
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