TqlExpressionVisitor.java 文件源码

@Override
public TqlElement visitFieldContains(TqlParser.FieldContainsContext ctx) {
    LOG.debug("Visit field contains: " + ctx.getText());
    TerminalNode field = ctx.getChild(TerminalNode.class, 0);
    TqlElement fieldName = field.accept(this);
    TerminalNode valueNode = ctx.getChild(TerminalNode.class, 2);

    if (valueNode instanceof ErrorNode)
        throw new TqlException(valueNode.getText());

    String quotedValue = valueNode.getSymbol().getText();
    String value = quotedValue.substring(1, quotedValue.length() - 1);
    FieldContainsExpression fieldContainsExpression = new FieldContainsExpression(fieldName, value);
    LOG.debug("End visit field contains: " + ctx.getText());
    return fieldContainsExpression;
}