Example usage for org.antlr.v4.runtime.misc OrderedHashSet OrderedHashSet

Introduction

In this page you can find the example usage for org.antlr.v4.runtime.misc OrderedHashSet OrderedHashSet.

Prototype

OrderedHashSet

Source Link

Usage

From source file:io.viewserver.operators.group.GroupByOperator.java

License:Apache License

@Override
protected IGroupByConfig mergePendingConfig(IGroupByConfig pendingConfig, IGroupByConfig newConfig) {
    if (!ObjectUtils.equals(pendingConfig.getCountColumnName(), newConfig.getCountColumnName())) {
        throw new IllegalStateException("Cannot merge configs with conflicting count column names");
    }//from  w w  w  .  jav a 2 s  .  c o m
    if (!ObjectUtils.equals(pendingConfig.getGroupBy(), newConfig.getGroupBy())) {
        throw new IllegalStateException("Cannot merge configs with conflicting group by columns");
    }
    if (!ObjectUtils.equals(pendingConfig.getSubtotals(), newConfig.getSubtotals())) {
        throw new IllegalStateException("Cannot merge configs with conflicting subtotals setting");
    }
    return new IGroupByConfig() {
        @Override
        public List<String> getGroupBy() {
            return pendingConfig.getGroupBy();
        }

        @Override
        public List<Summary> getSummaries() {
            HashSet<Summary> summaries = new OrderedHashSet<>();
            summaries.addAll(pendingConfig.getSummaries());
            summaries.addAll(newConfig.getSummaries());
            return new ArrayList<>(summaries);
        }

        @Override
        public String getCountColumnName() {
            return pendingConfig.getCountColumnName();
        }

        @Override
        public List<String> getSubtotals() {
            return pendingConfig.getSubtotals();
        }
    };
}

---