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## com.gwtext.client.data
Class Store

    java.lang.Object
      com.gwtext.client.core.JsObject
          com.gwtext.client.data.Store

Direct Known Subclasses:
  GroupingStore, JsonStore, SimpleStore

    public class Store

extends JsObject

The Store class encapsulates a client side cache of `Record` objects which provide input data for widgets such as the `GridPanel`, or the `ComboBox`.

A Store object uses an implementation of `DataProxy` to access a data object unless you call loadData() directly and pass in your data. The Store object has no knowledge of the format of the data returned by the Proxy.

A Store object uses its configured implementation of `Reader` to `Record` instances from the data object. These records are cached and made available through accessor functions. Usage :

     Object[][] states = new Object[][]{
                   new Object[]{"AL", "Alabama"},
                   new Object[]{"AK", "Alaska"},
                   new Object[]{"AZ", "Arizona"},
                   new Object[]{"AR", "Arkansas"},
                   new Object[]{"CA", "California"}};

     Reader reader = new ArrayReader(new RecordDef(
                    new FieldDef[]{
                           new StringFieldDef("abbr"),
                           new StringFieldDef("state")
                   }));

     Store store = new Store(proxy, reader);

See Also:
  `XmlReader`, `JsonReader`, `HttpProxy`, `MemoryProxy`

Field Summary
`protected com.google.gwt.core.client.JavaScriptObject` | `configJS`

Fields inherited from class com.gwtext.client.core.JsObject
`jsObj`

Constructor Summary
`protected` | `Store()`
`` | `Store(DataProxy dataProxy, Reader reader)` Create a Store using the specified `DataProxy` and `Reader`.
`` | `Store(DataProxy dataProxy, Reader reader, boolean remoteSort)` Create a Store using the specified `DataProxy` and `Reader`.
`` | `Store(DataProxy dataProxy, Reader reader, UrlParam[] baseParams, SortState initialSortState, boolean remoteSort)` Create a Store using the specified configuration.
`` | `Store(com.google.gwt.core.client.JavaScriptObject jsObj)`
`` | `Store(Reader reader)` Create a Store using the specified `Reader`.
`` | `Store(RecordDef recordDef)` Create a Store using the specified `RecordDef`.

Method Summary
`void` | `add(Record record)` Add a Record to the Store and fires the add event.
`void` | `add(Record[] records)` Add Records to the Store and fires the add event.
`void` | `addSorted(Record record)` (Local sort only) Inserts the passed the record in the Store at the index where it should go based on the current sort information.
`void` | `addStoreListener(StoreListener listener)` Add a Store listener.
`void` | `clearFilter()` Revert to a view of the Record cache / snapshot with no filtering applied.
`void` | `clearFilter(boolean suppressEvent)` Revert to a view of the Record cache with no filtering applied.
`void` | `clearSortState(boolean reload)` Clears the Stores internal sort state.
`void` | `commitChanges()` Commit all Records with outstanding changes.
`void` | `each(StoreTraversalCallback cb)` Calls the specified function for each of the Records in the cache.
`void` | `filter(java.lang.String field, RegExp regexp)` Filter the records by a specified property using a Regular expression.
`void` | `filter(java.lang.String field, java.lang.String value)` Filter the records by a specified property .
`void` | `filter(java.lang.String field, java.lang.String value, boolean anyMatch)` Filter the records by a specified property .
`void` | `filterBy(StoreTraversalCallback cb)` Filter by a function.
`Record` | `getAt(int index)` Returns the record at the specified index.
`UrlParam[]` | `getBaseParams()` Return the base params.
`Record` | `getById(java.lang.String id)` Get the Record with the specified id.
`int` | `getCount()` Gets the number of cached records.
`java.lang.String[]` | `getFields()`
`com.google.gwt.core.client.JavaScriptObject` | `getJsObj()`
`Record[]` | `getModifiedRecords()` Gets all records modified since the last commit.
`Record[]` | `getRange(int startIndex, int endIndex)` Returns a range of Records between specified indices.
`Record` | `getRecordAt(int index)` Returns the record at the specified index.
`Record[]` | `getRecords()` Return all the Records in the Store.
`com.google.gwt.core.client.JavaScriptObject` | `getRecordsAsJS()`
`SortState` | `getSortState()` Returns the sort state of the Store.
`int` | `getTotalCount()` Gets the total number of records in the dataset as returned by the server.
`int` | `indexOf(Record record)` Get the index within the cache of the passed Record.
`int` | `indexOfId(java.lang.String id)` Get the index within the cache of the Record with the passed id.
`void` | `insert(int index, Record record)` Inserts Records to the Store at the given index and fires the add event.
`void` | `insert(int index, Record[] records)` Inserts Records to the Store at the given index and fires the add event.
`void` | `load()` Loads the Record cache from the configured Proxy using the configured Reader.
`void` | `load(int start, int limit)` Loads the Record cache from the configured Proxy using the configured Reader.
`void` | `load(UrlParam[] params)` Loads the Record cache from the configured Proxy using the configured Reader.
`void` | `load(UrlParam[] params, boolean add)` Loads the Record cache from the configured Proxy using the configured Reader.
`void` | `loadJsonData(java.lang.String jsonString, boolean append)` Load data from a local Json String
`void` | `loadXmlData(java.lang.String xmlString, boolean append)` Load data from a local XML String.
`void` | `loadXmlDataFromUrl(java.lang.String url, boolean append)` Load data from XML returned from a URL.
`Record[]` | `query(java.lang.String field, RegExp regexp)` Query the records by a specified property.
`Record[]` | `query(java.lang.String field, java.lang.String value)` Query the records by a specified property.
`Record[]` | `query(java.lang.String field, java.lang.String value, boolean anyMatch)` Query the records by a specified property.
`Record[]` | `queryBy(StoreQueryFunction queryFunction)` Query by a function.
`void` | `rejectChanges()` Cancel outstanding changes on all changed records.
`void` | `reload()` Reloads the Record cache from the configured Proxy using the configured Reader and the options from the last load operation performed.
`void` | `reload(UrlParam[] params)` Reloads the Record cache from the configured Proxy using the configured Reader and the options from the last load operation performed.
`void` | `reload(UrlParam[] params, boolean add)` Reloads the Record cache from the configured Proxy using the configured Reader and the options from the last load operation performed.
`void` | `remove(Record record)` Remove a Record from the Store and fires the remove event.
`void` | `removeAll()` Remove all Records from the Store and fires the clear event.
`void` | `setAutoLoad(boolean autoLoad)` If true, this store's load method is automatically called after creation.
`void` | `setBaseParams(UrlParam[] baseParams)` Url params which are to be sent as parameters on any HTTP request.
`void` | `setDataProxy(DataProxy proxy)` The Proxy object which provides access to a data object..
`void` | `setDefaultSort(java.lang.String field, SortDir sortDir)` Sets the default sort column and order to be used by the next load operation.
`void` | `setDefaultSort(java.lang.String field, java.lang.String sortDir)` Deprecated. Use `setDefaultSort(String, com.gwtext.client.core.SortDir)`
`void` | `setInitialSortState(SortState initialSortState)` Set the initial sort state.
`void` | `setPruneModifiedRecords(boolean pruneModifiedRecords)` True to clear all modified record information each time the store is loaded or when a record is removed.
`void` | `setReader(Reader reader)` The Reader object which processes the data object and returns an Array of Ext.data.record objects which are cached keyed by their id property.
`void` | `setRecordDef(RecordDef recordDef)` Sets the record def for the Store.
`void` | `setRemoteSort(boolean remoteSort)` True if sorting is to be handled by requesting the Proxy to provide a refreshed version of the data object in sorted order, as opposed to sorting the Record cache in place (defaults to false).
`void` | `setSortInfo(SortState sortInfo)` The initial field to sort and its direction
`void` | `setStoreId(java.lang.String storeId)` If passed, the id to use to register with the StoreMgr.
`void` | `setUrl(java.lang.String url)` If passed, an HttpProxy is created for the passed URL.
`void` | `sort(java.lang.String field)` Sort the Records.
`void` | `sort(java.lang.String field, SortDir direction)` Sort the Records.
`void` | `sort(java.lang.String field, java.lang.String direction)` Deprecated. Use `sort(String, com.gwtext.client.core.SortDir)`
`float` | `sum(java.lang.String field)` Sums the value of property for each record between start and end and returns the result.
`float` | `sum(java.lang.String field, int startIndex, int endIndex)` Sums the value of property for each record between start and end and returns the result.

Methods inherited from class com.gwtext.client.core.JsObject
`getProperties, isCreated, setJsObj`

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Field Detail

### configJS

    protected com.google.gwt.core.client.JavaScriptObject configJS

Constructor Detail

### Store

    protected Store()

### Store

    public Store(com.google.gwt.core.client.JavaScriptObject jsObj)

### Store

    public Store(RecordDef recordDef)

  Create a Store using the specified `RecordDef`. Data can be added to the Store using `add(Record)`

  Parameters:
    `recordDef` - the record def

### Store

    public Store(Reader reader)

  Create a Store using the specified `Reader`.

  Parameters:
    `reader` - the reader

### Store

    public Store(DataProxy dataProxy,
                 Reader reader)

  Create a Store using the specified `DataProxy` and `Reader`.

  Parameters:
    `dataProxy` - the data proxy
    `reader` - the reader

### Store

    public Store(DataProxy dataProxy,
                 Reader reader,
                 boolean remoteSort)

  Create a Store using the specified `DataProxy` and `Reader`.

  Parameters:
    `dataProxy` - the data proxy
    `reader` - the reader
    `remoteSort` - true to enable remote sort of the data

### Store

    public Store(DataProxy dataProxy,
                 Reader reader,
                 UrlParam[] baseParams,
                 SortState initialSortState,
                 boolean remoteSort)

  Create a Store using the specified configuration.

  Parameters:
    `dataProxy` - the data proxy
    `reader` - the reader
    `baseParams` - base params which are to be sent as parameters on any HTTP request. Used only for Http based proxies.
    `initialSortState` - the initial sort field name and direction
    `remoteSort` - true to enable remote sort

Method Detail

### getJsObj

    public com.google.gwt.core.client.JavaScriptObject getJsObj()

  Overrides:
    `getJsObj` in class `JsObject`

### getBaseParams

    public UrlParam[] getBaseParams()

  Return the base params.

  Returns:
    the base params

### add

    public void add(Record record)

  Add a Record to the Store and fires the add event.

  Parameters:
    `record` - the Record to add

### add

    public void add(Record[] records)

  Add Records to the Store and fires the add event.

  Parameters:
    `records` - the Records to add

### addSorted

    public void addSorted(Record record)

  (Local sort only) Inserts the passed the record in the Store at the index where it should go based on the current sort information.

  Parameters:
    `record` - the record to add

### clearSortState

    public void clearSortState(boolean reload)

  Clears the Stores internal sort state.

  Parameters:
    `reload` - true to reload the store after clearing the sort state

### clearFilter

    public void clearFilter()

  Revert to a view of the Record cache / snapshot with no filtering applied. A snapshot of the data is taken when `filter(String, String)` is called. Records added to the Store after filter is caleld will be lost if clearFilter is subsequently called.

### clearFilter

    public void clearFilter(boolean suppressEvent)

  Revert to a view of the Record cache with no filtering applied.

  Parameters:
    `suppressEvent` - if true the filter is cleared silently without notifying listeners

### commitChanges

    public void commitChanges()

  Commit all Records with outstanding changes. To handle updates for changes, subscribe to the Store's "update" event, and perform updating when the third parameter `Record.COMMIT`.

### each

    public void each(StoreTraversalCallback cb)

  Calls the specified function for each of the Records in the cache.

  Parameters:
    `cb` - the Store traversal callback

### filter

    public void filter(java.lang.String field,
                       RegExp regexp)

  Filter the records by a specified property using a Regular expression.

  Parameters:
    `field` - the filed to filter on
    `regexp` - the regular expression to test field value against

### filter

    public void filter(java.lang.String field,
                       java.lang.String value)

  Filter the records by a specified property .

  Parameters:
    `field` - the filed to filter on
    `value` - a string that the field should start with

### filter

    public void filter(java.lang.String field,
                       java.lang.String value,
                       boolean anyMatch)

  Filter the records by a specified property .

  Parameters:
    `field` - the filed to filter on
    `value` - a string that the field should start with
    `anyMatch` - true to match any part not just the beginning

### filterBy

    public void filterBy(StoreTraversalCallback cb)

  Filter by a function. The specified function will be called with each record in this data source. If the function returns true the record is included, otherwise it is filtered.

  Parameters:
    `cb` - the filter function

### getRecordAt

    public Record getRecordAt(int index)

  Returns the record at the specified index. This method is functionally equivalent to `getAt(int)`.

  Parameters:
    `index` - the Store index
  Returns:
    the Record at index

### getAt

    public Record getAt(int index)

  Returns the record at the specified index.

  Parameters:
    `index` - the Store index
  Returns:
    the Record at index

### getById

    public Record getById(java.lang.String id)

  Get the Record with the specified id.

  Parameters:
    `id` - the Record ID
  Returns:
    the matched Record or null if no match found

### getCount

    public int getCount()

  Gets the number of cached records. If using paging, this may not be the total size of the dataset. If the data object used by the Reader contains the dataset size, then the getTotalCount() function returns the data set size

  Returns:
    the Record count

### getModifiedRecords

    public Record[] getModifiedRecords()

  Gets all records modified since the last commit. Modified records are persisted across load operations (e.g., during paging).

  Returns:
    the modified Records. Returns an empty array if no records were modified

### getRange

    public Record[] getRange(int startIndex,
                             int endIndex)

  Returns a range of Records between specified indices.

  Parameters:
    `startIndex` - the starting index (0 based)
    `endIndex` - the ending index
  Returns:
    array of Records

### getSortState

    public SortState getSortState()

  Returns the sort state of the Store.

  Returns:
    the Store sort state

### getTotalCount

    public int getTotalCount()

  Gets the total number of records in the dataset as returned by the server. If using paging, for this to be accurate, the data object used by the Reader must contain the dataset size.

  Returns:
    total record count

### indexOf

    public int indexOf(Record record)

  Get the index within the cache of the passed Record.

  Parameters:
    `record` - the Record to find
  Returns:
    the index of the passed Record. Returns -1 if not found

### indexOfId

    public int indexOfId(java.lang.String id)

  Get the index within the cache of the Record with the passed id.

  Parameters:
    `id` - the Record ID
  Returns:
    the index of the Record. Returns -1 if not found

### insert

    public void insert(int index,
                       Record record)

  Inserts Records to the Store at the given index and fires the add event.

  Parameters:
    `index` - the start index at which to insert the passed Record
    `record` - the Record to insert

### insert

    public void insert(int index,
                       Record[] records)

  Inserts Records to the Store at the given index and fires the add event.

  Parameters:
    `index` - the start index at which to insert the passed Records
    `records` - the Records to insert

### load

    public void load()

  Loads the Record cache from the configured Proxy using the configured Reader.
  If using remote paging, then the first load call must specify the start and limit properties to establish the initial position within the dataset by calling `load(int, int)` , and the number of Records to cache on each read from the Proxy. It is important to note that for remote data sources, loading is asynchronous, and this call will return before the new data has been loaded. Perform any post-processing in a "load" event handler.

### load

    public void load(int start,
                     int limit)

  Loads the Record cache from the configured Proxy using the configured Reader.
  If using remote paging, then the first load call must specify the start and limit properties to establish the initial position within the dataset by calling `load(int, int)` , and the number of Records to cache on each read from the Proxy. It is important to note that for remote data sources, loading is asynchronous, and this call will return before the new data has been loaded. Perform any post-processing in a "load" event handler.

  Parameters:
    `start` - start position
    `limit` - limit

### load

    public void load(UrlParam[] params)

  Loads the Record cache from the configured Proxy using the configured Reader.
  If using remote paging, then the first load call must specify the start and limit properties to establish the initial position within the dataset by calling `load(int, int)` , and the number of Records to cache on each read from the Proxy. It is important to note that for remote data sources, loading is asynchronous, and this call will return before the new data has been loaded. Perform any post-processing in a "load" event handler.

  Parameters:
    `params` - the load params

### load

    public void load(UrlParam[] params,
                     boolean add)

  Loads the Record cache from the configured Proxy using the configured Reader.
  If using remote paging, then the first load call must specify the start and limit properties to establish the initial position within the dataset by calling `load(int, int)` , and the number of Records to cache on each read from the Proxy. It is important to note that for remote data sources, loading is asynchronous, and this call will return before the new data has been loaded. Perform any post-processing in a "load" event handler.

  Parameters:
    `params` - the load params
    `add` - true to append loaded records rather than replace the current cache

### reload

    public void reload()

  Reloads the Record cache from the configured Proxy using the configured Reader and the options from the last load operation performed.

### loadJsonData

    public void loadJsonData(java.lang.String jsonString,
                             boolean append)

  Load data from a local Json String

  Parameters:
    `jsonString` - the Json String
    `append` - true to append to the Store

### loadXmlDataFromUrl

    public void loadXmlDataFromUrl(java.lang.String url,
                                   boolean append)

  Load data from XML returned from a URL.

  Parameters:
    `url` - the url that returns the XML data
    `append` - true to append records

### loadXmlData

    public void loadXmlData(java.lang.String xmlString,
                            boolean append)

  Load data from a local XML String.

  Parameters:
    `xmlString` - the XML data
    `append` - true to append records

### reload

    public void reload(UrlParam[] params)

  Reloads the Record cache from the configured Proxy using the configured Reader and the options from the last load operation performed.

  Parameters:
    `params` - the request params

### reload

    public void reload(UrlParam[] params,
                       boolean add)

  Reloads the Record cache from the configured Proxy using the configured Reader and the options from the last load operation performed.

  Parameters:
    `params` - the request params
    `add` - true to append loaded records rather than replace the current cache

### query

    public Record[] query(java.lang.String field,
                          java.lang.String value)

  Query the records by a specified property.

  Parameters:
    `field` - the field to query on
    `value` - a string that the field should start with
  Returns:
    array of match records or empty array if no match found

### query

    public Record[] query(java.lang.String field,
                          java.lang.String value,
                          boolean anyMatch)

  Query the records by a specified property.

  Parameters:
    `field` - the field to query on
    `value` - a string that the field should start with
    `anyMatch` - true to match any part not just the beginning
  Returns:
    array of match records or empty array if no match found

### query

    public Record[] query(java.lang.String field,
                          RegExp regexp)

  Query the records by a specified property.

  Parameters:
    `field` - the field to query on
    `regexp` - a RegExp to test against the field
  Returns:
    array of match records or empty array if no match found

### queryBy

    public Record[] queryBy(StoreQueryFunction queryFunction)

  Query by a function. The specified function will be called with each record in this data source. If the function returns true the record is included in the results.

  Parameters:
    `queryFunction` - the query function
  Returns:
    array of match records or empty array if no match found

### rejectChanges

    public void rejectChanges()

  Cancel outstanding changes on all changed records.

### remove

    public void remove(Record record)

  Remove a Record from the Store and fires the remove event.

  Parameters:
    `record` - the record to remove

### removeAll

    public void removeAll()

  Remove all Records from the Store and fires the clear event.

### setDefaultSort

    public void setDefaultSort(java.lang.String field,
                               SortDir sortDir)

  Sets the default sort column and order to be used by the next load operation.

  Parameters:
    `field` - the name of the field to sort by
    `sortDir` - the sort order

### setDefaultSort

    public void setDefaultSort(java.lang.String field,
                               java.lang.String sortDir)

  Deprecated. Use `setDefaultSort(String, com.gwtext.client.core.SortDir)`

  Sets the default sort column and order to be used by the next load operation.

  Parameters:
    `field` - the name of the field to sort by
    `sortDir` - the sort order, "ASC" or "DESC" (defaults to "ASC")

### sort

    public void sort(java.lang.String field)

  Sort the Records. If remote sorting is used, the sort is performed on the server, and the cache is reloaded. If local sorting is used, the cache is sorted internally.

  Parameters:
    `field` - the name of the field to sort by

### sort

    public void sort(java.lang.String field,
                     SortDir direction)

  Sort the Records. If remote sorting is used, the sort is performed on the server, and the cache is reloaded. If local sorting is used, the cache is sorted internally.

  Parameters:
    `field` - the name of the field to sort by
    `direction` - the sort order

### sort

    public void sort(java.lang.String field,
                     java.lang.String direction)

  Deprecated. Use `sort(String, com.gwtext.client.core.SortDir)`

  Sort the Records. If remote sorting is used, the sort is performed on the server, and the cache is reloaded. If local sorting is used, the cache is sorted internally.

  Parameters:
    `field` - the name of the field to sort by
    `direction` - the sort order, "ASC" or "DESC" (defaults to "ASC")

### sum

    public float sum(java.lang.String field)

  Sums the value of property for each record between start and end and returns the result.

  Parameters:
    `field` - field on your records
  Returns:
    the sum

### sum

    public float sum(java.lang.String field,
                     int startIndex,
                     int endIndex)

  Sums the value of property for each record between start and end and returns the result.

  Parameters:
    `field` - field on your records
    `startIndex` - the record index to start at (defaults to 0)
    `endIndex` - the last record index to include
  Returns:
    the sum

### getRecords

    public Record[] getRecords()

  Return all the Records in the Store.

  Returns:
    the Records

### addStoreListener

    public void addStoreListener(StoreListener listener)

  Add a Store listener.

  Parameters:
    `listener` - the listener

### setAutoLoad

    public void setAutoLoad(boolean autoLoad)

  If true, this store's load method is automatically called after creation.

  Parameters:
    `autoLoad` - true to auto laod

### setBaseParams

    public void setBaseParams(UrlParam[] baseParams)

  Url params which are to be sent as parameters on any HTTP request.

  Parameters:
    `baseParams` - the base params

### setDataProxy

    public void setDataProxy(DataProxy proxy)

  The Proxy object which provides access to a data object..

  Parameters:
    `proxy` - the data proxy

### setPruneModifiedRecords

    public void setPruneModifiedRecords(boolean pruneModifiedRecords)

  True to clear all modified record information each time the store is loaded or when a record is removed. (defaults to false).

  Parameters:
    `pruneModifiedRecords` - true to prune modified records

### setReader

    public void setReader(Reader reader)

  The Reader object which processes the data object and returns an Array of Ext.data.record objects which are cached keyed by their id property.

  Parameters:
    `reader` - the reader

### setRemoteSort

    public void setRemoteSort(boolean remoteSort)

  True if sorting is to be handled by requesting the Proxy to provide a refreshed version of the data object in sorted order, as opposed to sorting the Record cache in place (defaults to false). If remote sorting is specified, then clicking on a column header causes the current page to be requested from the server with the addition of the following two parameters:

  sort : String The name (as specified in the Record's Field definition) of the field to sort on. dir : String The direction of the sort, "ASC" or "DESC".

  Parameters:
    `remoteSort` - true to enable remote sort

### setSortInfo

    public void setSortInfo(SortState sortInfo)

  The initial field to sort and its direction

  Parameters:
    `sortInfo` - the sort info

### setStoreId

    public void setStoreId(java.lang.String storeId)

  If passed, the id to use to register with the StoreMgr.

  Parameters:
    `storeId` - the store ID

### setUrl

    public void setUrl(java.lang.String url)

  If passed, an HttpProxy is created for the passed URL.

  Parameters:
    `url` - the url

### setRecordDef

    public void setRecordDef(RecordDef recordDef)

  Sets the record def for the Store.

  Parameters:
    `recordDef` - the stores record def

### setInitialSortState

    public void setInitialSortState(SortState initialSortState)

  Set the initial sort state.

  Parameters:
    `initialSortState` - the initial sort state

### getRecordsAsJS

    public com.google.gwt.core.client.JavaScriptObject getRecordsAsJS()

### getFields

    public java.lang.String[] getFields()

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