/**
* Removes a single sort field from the current sort information.
*
* @return the modified SolrQuery object, for easy chaining
* @since 4.2
*/
public SolrQuery removeSort(String itemName) {
if (sortClauses != null) {
for (SortClause existing : sortClauses) {
if (existing.getItem().equals(itemName)) {
sortClauses.remove(existing);
if (sortClauses.isEmpty()) sortClauses = null;
serializeSorts();
break;
}
}
}
return this;
}
/**
* Updates or adds a single sort field specification to the current sort information. If the sort
* field already exist in the sort information map, it's position is unchanged and the sort order
* is set; if it does not exist, it is appended at the end with the specified order..
*
* @return the modified SolrQuery object, for easy chaining
* @since 4.2
*/
public SolrQuery addOrUpdateSort(SortClause sortClause) {
if (sortClauses != null) {
for (int index = 0; index < sortClauses.size(); index++) {
SortClause existing = sortClauses.get(index);
if (existing.getItem().equals(sortClause.getItem())) {
sortClauses.set(index, sortClause);
serializeSorts();
return this;
}
}
}
return addSort(sortClause);
}
private void serializeSorts() {
if (sortClauses == null || sortClauses.isEmpty()) {
remove(CommonParams.SORT);
} else {
StringBuilder sb = new StringBuilder();
for (SortClause sortClause : sortClauses) {
if (sb.length() > 0) sb.append(",");
sb.append(sortClause.getItem());
sb.append(" ");
sb.append(sortClause.getOrder());
}
set(CommonParams.SORT, sb.toString());
}
}
/**
* Removes a single sort field from the current sort information.
*
* @return the modified SolrQuery object, for easy chaining
* @since 4.2
*/
public SolrQuery removeSort(SortClause sortClause) {
return removeSort(sortClause.getItem());
}
public boolean equals(Object other) {
if (this == other) return true;
if (!(other instanceof SortClause)) return false;
final SortClause that = (SortClause) other;
return this.getItem().equals(that.getItem()) && this.getOrder().equals(that.getOrder());
}
