Examples of org.apache.derby.iapi.sql.compile.Parser

Package org.apache.derby.iapi.sql.compile

Examples of org.apache.derby.iapi.sql.compile.Parser

org.apache.derby.iapi.sql.compile.Parser
The Parser interface is intended to work with Jack-generated parsers (now JavaCC). We will specify "STATIC=false" when building Jack parsers - this specifies that the generated classes will not be static, which will allow there to be more than one parser (this is necessary in a multi-threaded server). Non-static parsers do not have to be re-initialized every time they are used (unlike static parsers, for which one must call ReInit() between calls to the parser). @author Jeff Lichtman

  (
    String        defaultText
    )
    throws StandardException
  {
    Parser            p;
    ValueNode          defaultTree;
    LanguageConnectionContext  lcc = getLanguageConnectionContext();
    CompilerContext       compilerContext = getCompilerContext();


    /* Get a Statement to pass to the parser */


    /* We're all set up to parse. We have to build a compilable SQL statement
     * before we can parse -  So, we goober up a VALUES defaultText.
     */
    String values = "VALUES " + defaultText;
    
    /*
    ** Get a new compiler context, so the parsing of the select statement
    ** doesn't mess up anything in the current context (it could clobber
    ** the ParameterValueSet, for example).
    */
    CompilerContext newCC = lcc.pushCompilerContext();


    p = newCC.getParser();
        
    /* Finally, we can call the parser */
    // Since this is always nested inside another SQL statement, so topLevel flag
    // should be false
    QueryTreeNode qt = p.parseStatement(values);
    if (SanityManager.DEBUG)
    {
      if (! (qt instanceof CursorNode))
      {
        SanityManager.THROWASSERT(

View Full Code Here

    String        checkConstraintText,
    TableDescriptor    td
    )
    throws StandardException
  {
    Parser            p;
    ValueNode          checkTree;
    LanguageConnectionContext  lcc = getLanguageConnectionContext();
    CompilerContext       compilerContext = getCompilerContext();


    /* Get a Statement to pass to the parser */


    /* We're all set up to parse. We have to build a compile SQL statement
     * before we can parse - we just have a WHERE clause right now.
     * So, we goober up a SELECT * FROM table WHERE checkDefs.
     */
    String select = "SELECT * FROM " +
                  td.getQualifiedName() +
                  " WHERE " +
                  checkConstraintText;
    
    /*
    ** Get a new compiler context, so the parsing of the select statement
    ** doesn't mess up anything in the current context (it could clobber
    ** the ParameterValueSet, for example).
    */
    CompilerContext newCC = lcc.pushCompilerContext();


    p = newCC.getParser();
        
    /* Finally, we can call the parser */
    // Since this is always nested inside another SQL statement, so topLevel flag
    // should be false
    QueryTreeNode qt = p.parseStatement(select);
    if (SanityManager.DEBUG)
    {
      if (! (qt instanceof CursorNode))
      {
        SanityManager.THROWASSERT(

View Full Code Here

    LanguageConnectionContext  lcc,
    CompilerContext        cc
    )
    throws StandardException
  {
    Parser            p;
    ValueNode          defaultTree;


    /* Get a Statement to pass to the parser */


    /* We're all set up to parse. We have to build a compilable SQL statement
     * before we can parse -  So, we goober up a VALUES defaultText.
     */
    String values = "VALUES " + defaultText;
    
    /*
    ** Get a new compiler context, so the parsing of the select statement
    ** doesn't mess up anything in the current context (it could clobber
    ** the ParameterValueSet, for example).
    */
    CompilerContext newCC = lcc.pushCompilerContext();


    p = newCC.getParser();


    
    /* Finally, we can call the parser */
    // Since this is always nested inside another SQL statement, so topLevel flag
    // should be false
    QueryTreeNode qt = p.parseStatement(values);
    if (SanityManager.DEBUG)
    {
      if (! (qt instanceof CursorNode))
      {
        SanityManager.THROWASSERT(

View Full Code Here

              ViewDescriptor vd = (ViewDescriptor) dep;
              DataDictionary dd = getDataDictionary();
              SchemaDescriptor compSchema;
              compSchema = dd.getSchemaDescriptor(vd.getCompSchemaId(), null);
              CompilerContext newCC = lcc.pushCompilerContext(compSchema);
              Parser  pa = newCC.getParser();
              LanguageConnectionFactory  lcf = lcc.getLanguageConnectionFactory();


              // Since this is always nested inside another SQL
              // statement, so topLevel flag should be false
              CreateViewNode cvn = (CreateViewNode)pa.parseStatement(
                        vd.getViewText());


              // need a current dependent for bind
              newCC.setCurrentDependent(dep);
              cvn = (CreateViewNode) cvn.bind();

View Full Code Here

                        "), Begin compiling prepared statement: " + 
                        getSource() +
                        " :End prepared statement");
        }


        Parser p = cc.getParser();


        cc.setCurrentDependent(preparedStmt);


        //Only top level statements go through here, nested statement
        //will invoke this method from other places
        QueryTreeNode qt = p.parseStatement(statementText, paramDefaults);


        parseTime = getCurrentTimeMillis(lcc);


        if (SanityManager.DEBUG) 
        {

View Full Code Here

    String        checkConstraintText,
    TableDescriptor    td
    )
    throws StandardException
  {
    Parser            p;
    ValueNode          checkTree;
    LanguageConnectionContext  lcc = getLanguageConnectionContext();
    CompilerContext       compilerContext = getCompilerContext();


    /* Get a Statement to pass to the parser */


    /* We're all set up to parse. We have to build a compile SQL statement
     * before we can parse - we just have a WHERE clause right now.
     * So, we goober up a SELECT * FROM table WHERE checkDefs.
     */
    String select = "SELECT * FROM " +
                  td.getQualifiedName() +
                  " WHERE " +
                  checkConstraintText;
    
    /*
    ** Get a new compiler context, so the parsing of the select statement
    ** doesn't mess up anything in the current context (it could clobber
    ** the ParameterValueSet, for example).
    */
    CompilerContext newCC = lcc.pushCompilerContext();


    p = newCC.getParser();
        
    /* Finally, we can call the parser */
    // Since this is always nested inside another SQL statement, so topLevel flag
    // should be false
    QueryTreeNode qt = p.parseStatement(select);
    if (SanityManager.DEBUG)
    {
      if (! (qt instanceof CursorNode))
      {
        SanityManager.THROWASSERT(

View Full Code Here

                        "), Begin compiling prepared statement: " + 
                        getSource() +
                        " :End prepared statement");
        }


        Parser p = cc.getParser();


        cc.setCurrentDependent(preparedStmt);


        //Only top level statements go through here, nested statement
        //will invoke this method from other places
        StatementNode qt = p.parseStatement(statementText, paramDefaults);


        parseTime = getCurrentTimeMillis(lcc);


                // Call user-written tree-printer if it exists
                walkAST( lcc, qt, ASTVisitor.AFTER_PARSE);

View Full Code Here

                        "), Begin compiling prepared statement: " + 
                        getSource() +
                        " :End prepared statement");
        }


        Parser p = cc.getParser();


        cc.setCurrentDependent(preparedStmt);


        //Only top level statements go through here, nested statement
        //will invoke this method from other places
        StatementNode qt = p.parseStatement(statementText, paramDefaults);


        parseTime = getCurrentTimeMillis(lcc);


        if (SanityManager.DEBUG) 
        {

View Full Code Here

    if (internalSQL)
        newCC.setReliability(CompilerContext.INTERNAL_SQL_LEGAL);


    try
    {
      Parser p = newCC.getParser();
      return p.parseStatement(sql);
    }


    finally
    {
      lcc.popCompilerContext(newCC);

View Full Code Here

  (
    String        defaultText
    )
    throws StandardException
  {
    Parser            p;
    ValueNode          defaultTree;
    LanguageConnectionContext  lcc = getLanguageConnectionContext();
    CompilerContext       compilerContext = getCompilerContext();


    /* Get a Statement to pass to the parser */


    /* We're all set up to parse. We have to build a compilable SQL statement
     * before we can parse -  So, we goober up a VALUES defaultText.
     */
    String values = "VALUES " + defaultText;
    
    /*
    ** Get a new compiler context, so the parsing of the select statement
    ** doesn't mess up anything in the current context (it could clobber
    ** the ParameterValueSet, for example).
    */
    CompilerContext newCC = lcc.pushCompilerContext();


    p = newCC.getParser();
        
    /* Finally, we can call the parser */
    // Since this is always nested inside another SQL statement, so topLevel flag
    // should be false
    StatementNode qt = p.parseStatement(values);
    if (SanityManager.DEBUG)
    {
      if (! (qt instanceof CursorNode))
      {
        SanityManager.THROWASSERT(

View Full Code Here

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Related Classes of org.apache.derby.iapi.sql.compile.Parser

org.apache.derby.iapi.sql.dictionary.TriggerDescriptor

org.apache.derby.impl.sql.compile.DefaultNode

org.apache.derby.impl.sql.compile.DMLModStatementNode

org.apache.derby.impl.sql.compile.QueryTreeNode

org.apache.derby.impl.sql.compile.ResultSetNode

org.apache.derby.impl.sql.depend.BasicDependencyManager

org.apache.derby.impl.sql.execute.AlterTableConstantAction

org.apache.derby.impl.sql.GenericStatement

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