本文整理了Java中com.google.appengine.api.datastore.Query.getFilterPredicates
方法的一些代码示例,展示了Query.getFilterPredicates
的具体用法。这些代码示例主要来源于Github
/Stackoverflow
/Maven
等平台,是从一些精选项目中提取出来的代码,具有较强的参考意义,能在一定程度帮忙到你。Query.getFilterPredicates
方法的具体详情如下:
包路径:com.google.appengine.api.datastore.Query
类名称:Query
方法名:getFilterPredicates
暂无
代码示例来源:origin: com.google.appengine.orm/datanucleus-appengine
str.append(" ANCESTOR=" + primaryDatastoreQuery.getAncestor());
List<FilterPredicate> filterPreds = primaryDatastoreQuery.getFilterPredicates();
if (filterPreds.size() > 0) {
str.append(" Filter : ");
代码示例来源:origin: com.googlecode.cedar-common/objectify
FilterPredicate[] filters = this.actual.getFilterPredicates().toArray(new FilterPredicate[this.actual.getFilterPredicates().size()]);
Arrays.sort(filters, new Comparator<FilterPredicate>() {
@Override
代码示例来源:origin: com.google.appengine.orm/datanucleus-appengine
private void validateJoinQuery(QueryData qd, DatastoreQuery query, String joinSortProp) {
// all filters on the primary must be equality
for (Query.FilterPredicate fp : qd.primaryDatastoreQuery.getFilterPredicates()) {
if (fp.getOperator() != Query.FilterOperator.EQUAL) {
throw query.new UnsupportedDatastoreFeatureException(
"Filter on property '" + fp.getPropertyName() + "' uses operator '" + fp.getOperator()
+ "'. Joins are only supported when all filters are 'equals' filters.");
}
}
// all filters on the join must be equality
for (Query.FilterPredicate fp : qd.joinQuery.getFilterPredicates()) {
if (fp.getOperator() != Query.FilterOperator.EQUAL) {
throw query.new UnsupportedDatastoreFeatureException(
"Filter on property '" + fp.getPropertyName() + "' uses operator '" + fp.getOperator()
+ "'. Joins are only supported when all filters are 'equals' filters.");
}
}
List<Query.SortPredicate> primarySorts = qd.primaryDatastoreQuery.getSortPredicates();
// There must be 0 or 1 sort orders total.
// If there is a sort order it must be on the join column in ascending order.
// TODO(maxr): support sorting by join column in descending order
if (primarySorts.size() > 1 || !qd.joinQuery.getSortPredicates().isEmpty() ||
(!primarySorts.isEmpty() &&
(!primarySorts.get(0).getPropertyName().equals(joinSortProp) ||
primarySorts.get(0).getDirection() != Query.SortDirection.ASCENDING))) {
throw query.new UnsupportedDatastoreFeatureException(
"Joins can only be sorted by the join column in "
+ "ascending order (in this case '" + joinSortProp +"')");
}
}
代码示例来源:origin: org.vesalainen.dsql/dsql
for (FilterPredicate fp : query.getFilterPredicates())
for (FilterPredicate fp : query.getFilterPredicates())
代码示例来源:origin: com.googlecode.cedar-common/objectify
/**
* Make a new Query object that is exactly like the old. Too bad Query isn't Cloneable.
*/
protected com.google.appengine.api.datastore.Query cloneRawQuery(com.google.appengine.api.datastore.Query orig)
{
com.google.appengine.api.datastore.Query copy = new com.google.appengine.api.datastore.Query(orig.getKind(), orig.getAncestor());
for (FilterPredicate filter: orig.getFilterPredicates())
copy.addFilter(filter.getPropertyName(), filter.getOperator(), filter.getValue());
for (SortPredicate sort: orig.getSortPredicates())
copy.addSort(sort.getPropertyName(), sort.getDirection());
// This should be impossible but who knows what might happen in the future
if (orig.isKeysOnly())
copy.setKeysOnly();
return copy;
}
代码示例来源:origin: com.google.appengine.orm/datanucleus-appengine
qd.primaryDatastoreQuery.getFilterPredicates().size() == 1 &&
qd.primaryDatastoreQuery.getSortPredicates().isEmpty()) {
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