T
- the entity bean typepublic interface Filter<T>
That is, it uses local in-memory sorting and filtering of a list of entity beans. It is not used in a Database query or invoke a Database query.
You can optionally specify a sortByClause and if so, the sort will always execute prior to the filter expressions. You can specify any number of filter expressions and they are effectively joined by logical "AND".
The result of the filter method will leave the original list unmodified and return a new List instance.
// get a list of entities (query execution statistics in this case)
List<MetaQueryStatistic> list =
DB.find(MetaQueryStatistic.class).findList();
long nowMinus24Hrs = System.currentTimeMillis() - 24 * (1000 * 60 * 60);
// sort and filter the list returning a filtered list...
List<MetaQueryStatistic> filteredList =
DB.filter(MetaQueryStatistic.class)
.sort("avgTimeMicros desc")
.gt("executionCount", 0)
.gt("lastQueryTime", nowMinus24Hrs)
.eq("autoTuned", true)
.maxRows(10)
.filter(list);
The propertyNames can traverse the object graph (e.g. customer.name) by using dot notation. If any point during the object graph traversal to get a property value is null then null is returned.
// examples of property names that
// ... will traverse the object graph
// ... where customer is a property of our bean
customer.name
customer.shippingAddress.city
// get a list of entities (query execution statistics)
List<Order> orders =
DB.find(Order.class).findList();
// Apply a filter...
List<Order> filteredOrders =
DB.filter(Order.class)
.startsWith("customer.name", "Rob")
.eq("customer.shippingAddress.city", "Auckland")
.filter(orders);
Modifier and Type | Method and Description |
---|---|
Filter<T> |
between(String propertyName,
Object value1,
Object value2)
Between - property between the two given values.
|
Filter<T> |
contains(String propertyName,
String value)
Contains - property contains the string "value".
|
Filter<T> |
endsWith(String propertyName,
String value)
Ends With.
|
Filter<T> |
eq(String prop,
Object value)
Equal To - property equal to the given value.
|
List<T> |
filter(List<T> sourceList)
Apply the filter to the list returning a new list of the matching elements
in the sorted order.
|
Filter<T> |
ge(String propertyName,
Object value)
Greater Than or Equal to - property greater than or equal to the given
value.
|
Filter<T> |
gt(String propertyName,
Object value)
Greater Than - property greater than the given value.
|
Filter<T> |
icontains(String propertyName,
String value)
Case insensitive Contains.
|
Filter<T> |
iendsWith(String propertyName,
String value)
Case insensitive Ends With.
|
Filter<T> |
ieq(String propertyName,
String value)
Case Insensitive Equal To.
|
Filter<T> |
in(String propertyName,
Set<?> values)
In - property has a value contained in the set of values.
|
Filter<T> |
isNotNull(String propertyName)
Is Not Null - property is not null.
|
Filter<T> |
isNull(String propertyName)
Is Null - property is null.
|
Filter<T> |
istartsWith(String propertyName,
String value)
Case insensitive Starts With.
|
Filter<T> |
le(String propertyName,
Object value)
Less Than or Equal to - property less than or equal to the given value.
|
Filter<T> |
lt(String propertyName,
Object value)
Less Than - property less than the given value.
|
Filter<T> |
maxRows(int maxRows)
Specify the maximum number of rows/elements to return.
|
Filter<T> |
ne(String propertyName,
Object value)
Not Equal To - property not equal to the given value.
|
Filter<T> |
sort(String sortByClause)
Specify a sortByClause.
|
Filter<T> |
startsWith(String propertyName,
String value)
Starts With.
|
Filter<T> sort(String sortByClause)
The sort (if specified) will always execute first followed by the filter expressions.
Refer to Ebean.sort(List, String)
for more detail.
Filter<T> ne(String propertyName, Object value)
Filter<T> between(String propertyName, Object value1, Object value2)
Filter<T> gt(String propertyName, Object value)
Filter<T> ge(String propertyName, Object value)
Filter<T> le(String propertyName, Object value)
Filter<T> startsWith(String propertyName, String value)
Filter<T> istartsWith(String propertyName, String value)
Filter<T> contains(String propertyName, String value)
Filter<T> in(String propertyName, Set<?> values)
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