Class View

java.lang.Object
org.lightcouch.View
public class View extends Object
This class provides access to the View APIs.

Usage Example:


 List<Foo> list = dbClient.view("example/foo")
.startKey("start-key")
.endKey("end-key")
.limit(10)
.includeDocs(true)
.query(Foo.class);
 
 // scalar values
 int count = dbClient.view("example/by_tag")
	.key("couchdb")
	.queryForInt(); 

// pagination
Page<Foo> page = dbClient.view("example/foo").queryPage(...);
Since:
0.0.2
See Also:

  • Field Details

  • Constructor Details

  • Method Details

    • queryForStream

      public InputStream queryForStream()
      Queries a view as an InputStream

      The stream should be properly closed after usage, as to avoid connection leaks.

      Returns:
      The result as an InputStream.

    • query

      public <T> List<T> query(Class<T> classOfT)
      Queries a view.
      Type Parameters:
      T - Object type T
      Parameters:
      classOfT - The class of type T
      Returns:
      The result of the view query as a List<T>

    • queryView

      public <K,V,T> ViewResult<K,V,T> queryView(Class<K> classOfK, Class<V> classOfV, Class<T> classOfT)
      Queries a view.
      Type Parameters:
      K - Object type K (key)
      V - Object type V (value)
      T - The class type
      Parameters:
      classOfK - The class of type K.
      classOfV - The class of type V.
      classOfT - The class of type T.
      Returns:
      The View result entries.

    • queryForString

      public String queryForString()
      Returns:
      The result of the view as String.

    • queryForInt

      public int queryForInt()
      Returns:
      The result of the view as int.

    • queryForLong

      public long queryForLong()
      Returns:
      The result of the view as long.

    • queryForBoolean

      public boolean queryForBoolean()
      Returns:
      The result of the view as boolean.

    • queryValue

      private <V> V queryValue(Class<V> classOfV)
      Queries for scalar values. Internal use.

    • queryPage

      public <T> Page<T> queryPage(int rowsPerPage, String param, Class<T> classOfT)
      Queries a view for pagination, returns a next or a previous page, this method figures out which page to return based on the given param that is generated by an earlier call to this method, quering the first page is done by passing a null param.
      Type Parameters:
      T - Object type T
      Parameters:
      rowsPerPage - The number of rows per page.
      param - The request parameter to use to query a page, or null to return the first page.
      classOfT - The class of type T.
      Returns:
      Page

    • queryNextPage

      private <T> Page<T> queryNextPage(int rowsPerPage, String currentStartKey, String currentStartKeyDocId, String startKey, String startKeyDocId, Class<T> classOfT)
      Returns:
      The next page.

    • queryPreviousPage

      private <T> Page<T> queryPreviousPage(int rowsPerPage, String currentStartKey, String currentStartKeyDocId, String startKey, String startKeyDocId, Class<T> classOfT)
      Returns:
      The previous page.

    • key

      public View key(Object... key)
      Parameters:
      key - The key value, accepts a single value or multiple values for complex keys.
      Returns:
      View

    • startKey

      public View startKey(Object... startKey)
      Parameters:
      startKey - The start key value, accepts a single value or multiple values for complex keys.
      Returns:
      View

    • startKeyDocId

      public View startKeyDocId(String startKeyDocId)
      Parameters:
      startKeyDocId - The start key document id.
      Returns:
      View

    • endKey

      public View endKey(Object... endKey)
      Parameters:
      endKey - The end key value, accepts a single value or multiple values for complex keys.
      Returns:
      View

    • endKeyDocId

      public View endKeyDocId(String endKeyDocId)
      Parameters:
      endKeyDocId - The end key document id.
      Returns:
      View

    • limit

      public View limit(Integer limit)
      Parameters:
      limit - The limit value.
      Returns:
      View

    • stale

      public View stale(String stale)
      Parameters:
      stale - Accept values: ok | update_after (update_after as of CouchDB 1.1.0)
      Returns:
      View

    • descending

      public View descending(Boolean descending)
      Reverses the reading direction, not the sort order.
      Parameters:
      descending - The descending value true | false
      Returns:
      View

    • skip

      public View skip(Integer skip)
      Parameters:
      skip - Skips n number of documents.
      Returns:
      View

    • group

      public View group(Boolean group)
      Parameters:
      group - Specifies whether the reduce function reduces the result to a set of keys, or to a single result. Defaults to false (single result).
      Returns:
      View

    • groupLevel

      public View groupLevel(Integer groupLevel)
      Parameters:
      groupLevel - The group level
      Returns:
      View

    • reduce

      public View reduce(Boolean reduce)
      Parameters:
      reduce - Indicates whether to use the reduce function of the view, defaults to true if the reduce function is defined.
      Returns:
      View

    • includeDocs

      public View includeDocs(Boolean includeDocs)
      Parameters:
      includeDocs - Indicates whether to include documents
      Returns:
      View

    • inclusiveEnd

      public View inclusiveEnd(Boolean inclusiveEnd)
      Parameters:
      inclusiveEnd - Indicates whether the endkey is included in the result, defaults to true.
      Returns:
      View

    • updateSeq

      public View updateSeq(Boolean updateSeq)
      Parameters:
      updateSeq - Indicates whether to include sequence id of the view
      Returns:
      View

    • keys

      public View keys(List<?> keys)
      Supplies a key list when calling _all_docs View.
      Parameters:
      keys - The list of keys
      Returns:
      View

    • getKeyAsJson

      private String getKeyAsJson(Object... key)