oracle.toplink.essentials.internal.databaseaccess.QueryStringCall Maven / Gradle / Ivy
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package oracle.toplink.essentials.internal.databaseaccess;
import java.util.*;
import java.io.*;
import oracle.toplink.essentials.queryframework.*;
import oracle.toplink.essentials.internal.helper.*;
import oracle.toplink.essentials.internal.sessions.AbstractRecord;
import oracle.toplink.essentials.internal.sessions.AbstractSession;
/**
* INTERNAL:
* Purpose: Used to define query string calls.
* These include SQLCall, XQueryInteraction which reuse translation behavoir through
* this interface.
*
* @author James Sutherland
* @since OracleAS TopLink 10g (10.0.3)
*/
public interface QueryStringCall extends Call {
/**
* The parameters are the values in order of occurance in the SQL statement.
* This is lazy initialized to conserv space on calls that have no parameters.
*/
public Vector getParameters();
/**
* The parameter types determine if the parameter is a modify, translation or litteral type.
*/
public Vector getParameterTypes();
/**
* The parameters are the values in order of occurance in call.
* This is lazy initialized to conserv space on calls that have no parameters.
*/
public boolean hasParameters();
/**
* Allow pre-printing of the query/SQL string for fully bound calls, to save from reprinting.
* This should call translateCustomQuery() in the call implementation.
*/
public void prepare(AbstractSession session);
/**
* Allow the call to translate from the translation for predefined calls.
* This should call translateQueryString() in the call implementation.
*/
public void translate(AbstractRecord translationRow, AbstractRecord modifyRow, AbstractSession session);
/**
* Return the query string of the call.
* This must be overwritten by subclasses that support query language translation (SQLCall, XQueryCall).
*/
public String getQueryString();
/**
* Set the query string of the call.
* This must be overwritten by subclasses that support query language translation (SQLCall, XQueryCall).
*/
public void setQueryString(String queryString);
/**
* Parse the query string for # markers for custom query based on a query language.
* This is used by SQLCall and XQuery call, but can be reused by other query languages.
*/
public void translateCustomQuery();
/**
* All values are printed as ? to allow for parameter binding or translation during the execute of the call.
*/
public void appendLiteral(Writer writer, Object literal);
/**
* All values are printed as ? to allow for parameter binding or translation during the execute of the call.
*/
public void appendTranslation(Writer writer, DatabaseField modifyField);
/**
* All values are printed as ? to allow for parameter binding or translation during the execute of the call.
*/
public void appendModify(Writer writer, DatabaseField modifyField);
/**
* Add the parameter.
* If using binding bind the parameter otherwise let the platform print it.
* The platform may also decide to bind the value.
*/
public void appendParameter(Writer writer, Object parameter, AbstractSession session);
/**
* Allow the call to translate from the translation for predefined calls.
*/
public void translateQueryString(AbstractRecord translationRow, AbstractRecord modifyRow, AbstractSession session);
/**
* Should return true.
*/
public boolean isQueryStringCall();
}