How to use

getColumnName

method

in

org.h2.expression.Expression

@Override
public String getColumnName() {
  if (!(expr instanceof ExpressionColumn) || aliasColumnName) {
    return super.getColumnName();
  }
  return expr.getColumnName();
}

@Override
public String getColumnName(int i) {
  return expressions[i].getColumnName();
}

@Override
public String getColumnName(int i) {
  return expressions[i].getColumnName();
}

if (columnName == null && columnExp.getColumnName() != null
    && !DEFAULT_COLUMN_NAME.equals(columnExp.getColumnName())) {
  columnName = columnExp.getColumnName();
  if (!isAllowableColumnName(columnName)) {
    columnName = fixColumnName(columnName);

      args[0].getTableName() + "." + args[0].getColumnName());
  break;
case SIGNAL: {

String rowFactoryName = expression.getColumnName();
Class<RowFactory> rowFactoryClass = JdbcUtils.loadUserClass(rowFactoryName);
RowFactory rowFactory;
session.getColumnNamerConfiguration().configure(expression.getColumnName());
break;

@Override
public String getColumnName() {
  if (!(expr instanceof ExpressionColumn) || aliasColumnName) {
    return super.getColumnName();
  }
  return expr.getColumnName();
}

@Override
public String getColumnName(int i) {
  return expressions[i].getColumnName();
}

@Override
public String getColumnName(int i) {
  return expressions[i].getColumnName();
}

public String getColumnName() {
  if (SysProperties.ALIAS_COLUMN_NAME) {
    return expr.getColumnName();
  } else {
    return super.getColumnName();
  }
}

@Override
public String getColumnName() {
  if (!(expr instanceof ExpressionColumn) || aliasColumnName) {
    return super.getColumnName();
  }
  return expr.getColumnName();
}

public String getColumnName(int i) {
  return expressions[i].getColumnName();
}

private void generateColumnFromQuery() throws SQLException {
  int columnCount = asQuery.getColumnCount();
  ObjectArray expressions = asQuery.getExpressions();
  for (int i = 0; i < columnCount; i++) {
    Expression expr = (Expression) expressions.get(i);
    int type = expr.getType();
    String name = expr.getColumnName();
    long precision = expr.getPrecision();
    int displaySize = expr.getDisplaySize();
    DataType dt = DataType.getDataType(type);
    if (precision > 0 && (dt.defaultPrecision == 0 || (dt.defaultPrecision > precision && dt.defaultPrecision < Byte.MAX_VALUE))) {
      // dont' set precision to MAX_VALUE if this is the default
      precision = dt.defaultPrecision;
    }
    int scale = expr.getScale();
    if (scale > 0 && (dt.defaultScale == 0 || dt.defaultScale > scale)) {
      scale = dt.defaultScale;
    }
    Column col = new Column(name, type, precision, scale, displaySize);
    addColumn(col);
  }
}

      args[0].getTableName() + "." + args[0].getColumnName());
  break;
default:

case VALUES:
  result = session.getVariable(args[0].getSchemaName() + "." +
      args[0].getTableName() + "." + args[0].getColumnName());
  break;
default:

String rowFactoryName = expression.getColumnName();
Class<RowFactory> rowFactoryClass = JdbcUtils.loadUserClass(rowFactoryName);
RowFactory rowFactory;

String rowFactoryName = expression.getColumnName();
Class<RowFactory> rowFactoryClass = JdbcUtils.loadUserClass(rowFactoryName);
RowFactory rowFactory;