package net.sf.jsqlparser.util.deparser;
import java.util.Iterator;
import net.sf.jsqlparser.expression.Expression;
import net.sf.jsqlparser.expression.ExpressionVisitor;
import net.sf.jsqlparser.expression.operators.relational.ExpressionList;
import net.sf.jsqlparser.expression.operators.relational.ItemsListVisitor;
import net.sf.jsqlparser.schema.Column;
import net.sf.jsqlparser.statement.insert.Insert;
import net.sf.jsqlparser.statement.select.SelectVisitor;
import net.sf.jsqlparser.statement.select.SubSelect;
/**
* A class to de-parse (that is, tranform from JSqlParser hierarchy into a string)
* an {@link net.sf.jsqlparser.statement.insert.Insert}
*/
public class InsertDeParser implements ItemsListVisitor {
protected StringBuffer buffer;
protected ExpressionVisitor expressionVisitor;
protected SelectVisitor selectVisitor;
public InsertDeParser() {
}
/**
* @param expressionVisitor a {@link ExpressionVisitor} to de-parse {@link net.sf.jsqlparser.expression.Expression}s. It has to share the same<br>
* StringBuffer (buffer parameter) as this object in order to work
* @param selectVisitor a {@link SelectVisitor} to de-parse {@link net.sf.jsqlparser.statement.select.Select}s.
* It has to share the same<br>
* StringBuffer (buffer parameter) as this object in order to work
* @param buffer the buffer that will be filled with the insert
*/
public InsertDeParser(ExpressionVisitor expressionVisitor, SelectVisitor selectVisitor, StringBuffer buffer) {
this.buffer = buffer;
this.expressionVisitor = expressionVisitor;
this.selectVisitor = selectVisitor;
}
public StringBuffer getBuffer() {
return buffer;
}
public void setBuffer(StringBuffer buffer) {
this.buffer = buffer;
}
public void deParse(Insert insert) {
buffer.append("INSERT INTO ");
buffer.append(insert.getTable().getWholeTableName());
if (insert.getColumns() != null) {
buffer.append("(");
for (Iterator iter = insert.getColumns().iterator(); iter.hasNext();) {
Column column = (Column) iter.next();
buffer.append(column.getColumnName());
if (iter.hasNext()) {
buffer.append(", ");
}
}
buffer.append(")");
}
insert.getItemsList().accept(this);
}
public void visit(ExpressionList expressionList) {
buffer.append(" VALUES (");
for (Iterator iter = expressionList.getExpressions().iterator(); iter.hasNext();) {
Expression expression = (Expression) iter.next();
expression.accept(expressionVisitor);
if (iter.hasNext())
buffer.append(", ");
}
buffer.append(")");
}
public void visit(SubSelect subSelect) {
subSelect.getSelectBody().accept(selectVisitor);
}
public ExpressionVisitor getExpressionVisitor() {
return expressionVisitor;
}
public SelectVisitor getSelectVisitor() {
return selectVisitor;
}
public void setExpressionVisitor(ExpressionVisitor visitor) {
expressionVisitor = visitor;
}
public void setSelectVisitor(SelectVisitor visitor) {
selectVisitor = visitor;
}
}