nl.topicus.jdbc.shaded.net.sf.jsqlparser.util.deparser.AlterViewDeParser Maven / Gradle / Ivy
/*
* #%L
* JSQLParser library
* %%
* Copyright (C) 2004 - 2013 JSQLParser
* %%
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation, either version 2.1 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Lesser Public License for more details.
*
* You should have received a copy of the GNU General Lesser Public
* License along with this program. If not, see
* .
* #L%
*/
package nl.topicus.jdbc.shaded.net.sf.jsqlparser.util.deparser;
import nl.topicus.jdbc.shaded.net.sf.jsqlparser.statement.create.view.AlterView;
import nl.topicus.jdbc.shaded.net.sf.jsqlparser.statement.select.PlainSelect;
import nl.topicus.jdbc.shaded.net.sf.jsqlparser.statement.select.SelectVisitor;
/**
* A class to de-parse (that is, tranform from JSqlParser hierarchy into a string) a
* {@link nl.topicus.jdbc.shaded.net.sf.jsqlparser.statement.create.view.AlterView}
*/
public class AlterViewDeParser {
private StringBuilder buffer;
private SelectVisitor selectVisitor;
/**
* @param buffer the buffer that will be filled with the select
*/
public AlterViewDeParser(StringBuilder buffer) {
SelectDeParser selectDeParser = new SelectDeParser();
selectDeParser.setBuffer(buffer);
ExpressionDeParser expressionDeParser = new ExpressionDeParser(selectDeParser, buffer);
selectDeParser.setExpressionVisitor(expressionDeParser);
selectVisitor = selectDeParser;
this.buffer = buffer;
}
public AlterViewDeParser(StringBuilder buffer, SelectVisitor selectVisitor) {
this.buffer = buffer;
this.selectVisitor = selectVisitor;
}
public void deParse(AlterView alterView) {
buffer.append("ALTER ");
buffer.append("VIEW ").append(alterView.getView().getFullyQualifiedName());
if (alterView.getColumnNames() != null) {
buffer.append(PlainSelect.getStringList(alterView.getColumnNames(), true, true));
}
buffer.append(" AS ");
alterView.getSelectBody().accept(selectVisitor);
}
public StringBuilder getBuffer() {
return buffer;
}
public void setBuffer(StringBuilder buffer) {
this.buffer = buffer;
}
}