Examples of org.antlr.stringtemplate.StringTemplate$Aggregate

org.antlr.stringtemplate.StringTemplate
An automatically created aggregate of properties. I often have lists of things that need to be formatted, but the list items are actually pieces of data that are not already in an object. I need ST to do something like: Ter=3432 Tom=32234 .... using template: $items:{it.name$=$it.type$}$ This example will call getName() on the objects in items attribute, but what if they aren't objects? I have perhaps two parallel arrays instead of a single array of objects containing two fields. One solution is allow Maps to be handled like properties so that it.name would fail getName() but then see that it's a Map and do it.get("name") instead. This very clean approach is espoused by some, but the problem is that it's a hole in my separation rules. People can put the logic in the view because you could say: "go get bob's data" in the view: Bob's Phone: $db.bob.phone$ A view should not be part of the program and hence should never be able to go ask for a specific person's data. After much thought, I finally decided on a simple solution. I've added setAttribute variants that pass in multiple property values, with the property names specified as part of the name using a special attribute name syntax: "name.{propName1,propName2,...}". This object is a special kind of HashMap that hopefully prevents people from passing a subclass or other variant that they have created as it would be a loophole. Anyway, the ASTExpr.getObjectProperty() method looks for Aggregate as a special case and does a get() instead of getPropertyName.

    // <create_view_statement> ::=
    // CREATE [OR REPLACE] VIEW <table_name> [(<alias_name>,...)] AS <query_expression> [WITH CHECK OPTION]


    // "CREATE VIEW $viewName$ " +
    // "AS $selectStatement$ $withCheckOption$";
    final StringTemplate st = new StringTemplate(ST_CREATE_VIEW_STYLE_TWO);


    final HashMap<String, String> valuesMap =
      DialectUtils.getValuesMap(ST_VIEW_NAME_KEY, viewName, ST_SELECT_STATEMENT_KEY, definition);


    if (checkOption != null && !"".equals(checkOption))

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    final DatabaseObjectQualifier qualifier, final SqlGenerationPreferences prefs)
  {
    // <drop_index_statement> ::=
    // DROP INDEX <index_name> [ON <table_name>]


    final StringTemplate st = new StringTemplate(ST_DROP_INDEX_STYLE_ONE);
    final HashMap<String, String> valuesMap = new HashMap<String, String>();
    valuesMap.put(ST_INDEX_NAME_KEY, indexName);
    valuesMap.put(ST_TABLE_NAME_KEY, tableName);
    return DialectUtils.bindAttributes(this, st, valuesMap, qualifier, prefs);
  }

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  @Override
  public String getDropSequenceSQL(final String sequenceName, final boolean cascade,
    final DatabaseObjectQualifier qualifier, final SqlGenerationPreferences prefs)
  {
    // "DROP SEQUENCE $sequenceName$ $cascade$";
    final StringTemplate st = new StringTemplate(ST_DROP_SEQUENCE_STYLE_ONE);


    final HashMap<String, String> valuesMap = DialectUtils.getValuesMap(ST_SEQUENCE_NAME_KEY, sequenceName);


    return DialectUtils.bindTemplateAttributes(this, st, valuesMap, qualifier, prefs);
  }

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  @Override
  public String getDropViewSQL(final String viewName, final boolean cascade,
    final DatabaseObjectQualifier qualifier, final SqlGenerationPreferences prefs)
  {
    // "DROP VIEW $viewName$";
    final StringTemplate st = new StringTemplate(ST_DROP_VIEW_STYLE_ONE);


    final HashMap<String, String> valuesMap = DialectUtils.getValuesMap(ST_VIEW_NAME_KEY, viewName);


    return DialectUtils.bindTemplateAttributes(this, st, valuesMap, qualifier, prefs);
  }

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  @Override
  public String getRenameTableSQL(final String oldTableName, final String newTableName,
    final DatabaseObjectQualifier qualifier, final SqlGenerationPreferences prefs)
  {
    // "RENAME TABLE $oldObjectName$ TO $newObjectName$";
    final StringTemplate st = new StringTemplate(ST_RENAME_TABLE_STYLE_ONE);


    final HashMap<String, String> valuesMap =
      DialectUtils.getValuesMap(ST_OLD_OBJECT_NAME_KEY, oldTableName, ST_NEW_OBJECT_NAME_KEY, newTableName);


    return DialectUtils.bindTemplateAttributes(this, st, valuesMap, qualifier, prefs);

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    // <rename_view_statement> ::= RENAME VIEW <old_table_name> TO <new_table_name>
    // <old_table_name> ::= <table_name>
    // <new_table_name> ::= <table_name


    // "RENAME VIEW $oldObjectName$ TO $newObjectName$";
    final StringTemplate st = new StringTemplate(ST_RENAME_VIEW_STYLE_ONE);


    final HashMap<String, String> valuesMap =
      DialectUtils.getValuesMap(ST_OLD_OBJECT_NAME_KEY, oldViewName, ST_NEW_OBJECT_NAME_KEY, newViewName);


    return new String[] { DialectUtils.bindTemplateAttributes(this, st, valuesMap, qualifier, prefs) };

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    // "ALTER TABLE $tableName$ " +
    // "ADD CONSTRAINT $constraintName$ UNIQUE ($columnName; separator=\",\"$)";


    String templateStr = ST_ADD_UNIQUE_CONSTRAINT_STYLE_TWO;


    StringTemplate st = new StringTemplate(templateStr);


    HashMap<String, String> valuesMap =
      DialectUtils.getValuesMap(ST_TABLE_NAME_KEY, tableName, ST_CONSTRAINT_NAME_KEY, constraintName);


    return new String[] { DialectUtils.getAddUniqueConstraintSQL(st,

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  @Override
  public String getDropIndexSQL(String tableName, String indexName, boolean cascade,
    DatabaseObjectQualifier qualifier, SqlGenerationPreferences prefs)
  {
    // "DROP INDEX $indexName$";
    StringTemplate st = new StringTemplate(ST_DROP_INDEX_STYLE_THREE);
    st.setAttribute(ST_INDEX_NAME_KEY, indexName);


    return st.toString();
  }

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   * @return the SQL to make the change
   */
  public String getColumnNameAlterSQL(TableColumnInfo from, TableColumnInfo to, DatabaseObjectQualifier qualifier, SqlGenerationPreferences prefs)
  {
    // "ALTER TABLE $tableName$ RENAME COLUMN $oldColumnName$ to $newColumnName$";
    StringTemplate st = new StringTemplate(ST_ALTER_COLUMN_NAME_STYLE_ONE);
    
    HashMap<String, String> valuesMap =
      DialectUtils.getValuesMap(ST_TABLE_NAME_KEY,
        from.getTableName(),
        ST_OLD_COLUMN_NAME_KEY,

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      "BEGIN \n" +
      "    SELECT $sequenceName$.nextval into nextid from dual; \n" +
      "    :new.$columnName$ := nextid; \n" +
      "END; ";


    StringTemplate st = new StringTemplate(triggerTemplateStr);
    st.setAttribute("triggerName", trigName);
    st.setAttribute("tableName", tableName);
    st.setAttribute("sequenceName", seqName);
    st.setAttribute("columnName", column.getColumnName());
    
    return new String[] { sequenceSql, st.toString() };
  }

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