oracle.toplink.essentials.internal.expressions.SQLDeleteStatement Maven / Gradle / Ivy
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package oracle.toplink.essentials.internal.expressions;
import java.io.*;
import oracle.toplink.essentials.exceptions.*;
import oracle.toplink.essentials.queryframework.*;
import oracle.toplink.essentials.internal.databaseaccess.DatabaseCall;
import oracle.toplink.essentials.internal.sessions.AbstractSession;
/**
* Purpose: Print DELETE statement.
*
Responsibilities:
* - Print DELETE statement.
*
* @author Dorin Sandu
* @since TOPLink/Java 1.0
*/
public class SQLDeleteStatement extends SQLModifyStatement {
/**
* Append the string containing the SQL insert string for the given table.
*/
public DatabaseCall buildCall(AbstractSession session) {
SQLCall call = new SQLCall();
call.returnNothing();
Writer writer = new CharArrayWriter(100);
try {
writer.write("DELETE ");
writer.write("FROM ");
writer.write(getTable().getQualifiedName());
if (getWhereClause() != null) {
writer.write(" WHERE ");
ExpressionSQLPrinter printer = new ExpressionSQLPrinter(session, getTranslationRow(), call, false);
printer.setWriter(writer);
printer.printExpression(getWhereClause());
}
call.setSQLString(writer.toString());
} catch (IOException exception) {
throw ValidationException.fileError(exception);
}
return call;
}
}