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package oracle.toplink.essentials.tools.schemaframework;

import java.io.*;
import oracle.toplink.essentials.exceptions.*;
import oracle.toplink.essentials.internal.sessions.AbstractSession;

/**
 * 

* Purpose: Allow for creation of views. *

*/ public class ViewDefinition extends DatabaseObjectDefinition { protected String selectClause; public ViewDefinition() { super(); this.selectClause = ""; } /** * INTERNAL: * Return the DDL to create the view. */ public Writer buildCreationWriter(AbstractSession session, Writer writer) throws ValidationException { try { writer.write(session.getPlatform().getCreateViewString()); writer.write(getFullName()); writer.write(" AS ("); writer.write(getSelectClause()); writer.write(")"); } catch (IOException ioException) { throw ValidationException.fileError(ioException); } return writer; } /** * INTERNAL: * Return the DDL to drop the view. */ public Writer buildDeletionWriter(AbstractSession session, Writer writer) throws ValidationException { try { writer.write("DROP VIEW " + getFullName()); } catch (IOException ioException) { throw ValidationException.fileError(ioException); } return writer; } /** * The select clause is the select statement that is mapped into the view. * This is database specific SQL code. */ public String getSelectClause() { return selectClause; } /** * The select clause is the select statement that is mapped into the view. * This is database specific SQL code. */ public void setSelectClause(String selectClause) { this.selectClause = selectClause; } }





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