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Hitachi Vantara Lumada and Pentaho Documentation

CdaQuery

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cdf.queries. CdaQuery

Static

Class that represents a CDA query. This class will be registered globally using the static dashboard function registerGlobalQuery.

The constructor of this class is created dynamically and registered in the dashboard query container queryFactories.

To create a new CDA query use the dashboard function getQuery.

Source: queries/CdaQuery.js, line 27

Extends

Example

dashboard.addDataSource("myCdaQuery", {
 queryType: "cda", dataAccessId: "cdaQuery", path: "/public/myQ.cda"
});
dashboard.getQuery({dataSource: "myCdaQuery"}).doQuery(successCallback, errorCallback);

Members

Name Description
_label :  string
Constant
Protected

The class label.
_name :  string
Constant
Protected

The class name.
dashboard :  cdf.dashboard.Dashboard
Protected

A reference to the dashboard instance.
deepProperties :  Array.<<code>string>
Constant
Protected

A list of properties to be extended to the registered queries.
defaults :  Object
Protected

The default properties.
interfaces :  Object
Protected

The default interfaces.

Methods

Name Description
buildQueryDefinition(overrides) : object

Builds the query definition object.
doQuery(successCallback, errorCallback)

Executes a server-side query.
exportData(outputType, overrides, options)

Exports the data, according to a specific output type.
fetchData(params, successCallback, errorCallback) : Object

Fetches the data.
getErrorHandler(callback) : function

Gets the error callback handler.
getOption(prop) : Object

Gets an option (fallback for when the OptionManager is not available).
getPage(targetPage, outsideCallback) : boolean | Object

Gets the set of results for the page at index targetPage (0-indexed).
getSuccessHandler(callback) : function

Gets the success callback handler.
init(opts)

Initializes a CDA query.
initPage(pageSize, outsideCallback) : boolean | Object

Sets the page size and gets the first page of results.
lastProcessedResults() : Object

Gets the last retrieved result after being processed by postFetch.
lastResults() : Object

Gets the last retrieved result.
nextPage(outsideCallback) : Object

Gets the next page of results, as controlled by the pageSize option.
pageStartingAt(page, outsideCallback) : boolean | Object

Runs the query, setting a starting page before doing so.
previousPage(outsideCallback) : Object

Gets the previous page of results, as controlled by the pageSize option.
reprocessLastResults(outerCallback) : Object

Reruns the success callback on the last retrieved result set from the server.
reprocessResults(outsideCallback) : Object

Alias for reprocessLastResults.
setAjaxOptions(newOptions)

Sets the jQuery.ajax options for the query.
setCallback(callback)

Sets the success callback for the query.
setErrorCallback(callback)

Sets the error callback for the query.
setOption(prop, value)

Sets an option (fallback for when the OptionManager is not available).
setPageSize(pageSize)

Sets the page size.
setPageStartingAt(targetPage) : boolean

Sets the starting page for later executions of the query.
setParameters(params)

Sets query parameters.
setSearchPattern(pattern)

Sets the search pattern for the query.
setSortBy(sortBy) : boolean

Sets the sort by columns.
sortBy(sortBy, outsideCallback) : boolean | Object

Sorts the result set.

Members Details

_label:  string
Constant
Protected

The class label.

Source: queries/CdaQuery.js, line 74

Default Value: "CDA Query"

Overrides: cdf.queries.BaseQuery#_label

_name:  string
Constant
Protected

The class name.

Source: queries/CdaQuery.js, line 59

Default Value: "cda"

Overrides: cdf.queries.BaseQuery#_name

dashboard:  cdf.dashboard.Dashboard
Protected

A reference to the dashboard instance.

Source: queries/BaseQuery.js, line 76

Inherited From: cdf.queries.BaseQuery#dashboard

deepProperties:  Array.<<code>string>
Constant
Protected

A list of properties to be extended to the registered queries that do not provide their own constructor function.

Source: queries/BaseQuery.js, line 67

Inherited From: cdf.queries.BaseQuery#deepProperties

Default Value: 

["defaults","interfaces"]

See also: registerQuery

defaults:  Object
Protected

The default properties.

Properties:
Name Default Value Description
url : string

The target endpoint URL.
file : string ""

The target file name.
id : string ""

The target identifier.
outputIdx : string "1"

The default output index.
sortBy : string ""

The default sorting order.
ajaxOptions : Object {async:true,xhrFields:{withCredentials:true}}

The jQuery.ajax options for the query.
searchPattern : string ""

The default search pattern.

Source: queries/CdaQuery.js, line 93

Overrides: cdf.queries.BaseQuery#defaults

interfaces:  Object
Protected

The default interfaces.

Properties:
Name Default Value Description
params : Object

Parameter interfaces.

Properties:
Name Default Value Description
reader : string "propertiesObject"

Parameter reader.
validator : string "isObjectOrPropertiesArray"

Parameter validator.
successCallback : Object

Success callback interfaces.

Properties:
Name Default Value Description
validator : string "isFunction"

Success callback validator.
errorCallback : Object

Error callback interfaces.

Properties:
Name Default Value Description
validator : string "isFunction"

Error callback validator.
pageSize : Object

Page size interfaces.

Properties:
Name Default Value Description
validator : string "isPositive"

Page size validator.

Source: queries/BaseQuery.js, line 137

Inherited From: cdf.queries.BaseQuery#interfaces

Methods Details

buildQueryDefinition(overrides) : object

Builds the query definition object.

Source: queries/CdaQuery.js, line 151

Overrides: cdf.queries.BaseQuery#buildQueryDefinition

Parameters:
Name Default Value Summary
overrides : object

New query definitions to override any existing query definitions.
Returns:
Name Description
object

Query definition object.
doQuery(successCallback, errorCallback)

Executes a server-side query.

Source: queries/BaseQuery.js, line 267

Inherited From: cdf.queries.BaseQuery#doQuery

Parameters:
Name Default Value Summary
successCallback : function
Optional

Success callback.
errorCallback : function
Optional

Error callback.
exportData(outputType, overrides, options)

Exports the data, according to a specific output type.

Source: queries/CdaQuery.js, line 221

Overrides: cdf.queries.BaseQuery#exportData

Parameters:
Name Default Value Summary
outputType : string

Output type (CSV, XLS, XML, HTML).
overrides : object

Overrides for the query definition object.
options : object

Export options.

Parameters:
Name Default Value Summary
separator : string

Separator.
filename : string

File name.
template : string

Template name.
columnHeaders : object

The column headers.
dtFilter : object

Data table filter.
dtSearchableColumns : object

Data table searchable columns.
exportPage : boolean

Export only one page (true) or full data set (false).
fetchData(params, successCallback, errorCallback) : Object

Fetches the data.

Source: queries/BaseQuery.js, line 349

Inherited From: cdf.queries.BaseQuery#fetchData

Parameters:
Name Default Value Summary
params : Object

Parameters for the query.
successCallback : function

Success callback.
errorCallback : function

Error callback.
Returns:
Name Description
Object

The result of calling doQuery with the specified arguments.
Throws:
Name Description
InvalidInput

If the arguments are not correct.
getErrorHandler(callback) : function

Gets the error callback handler that executes the provided callback when the query fails to execute.

Source: queries/BaseQuery.js, line 252

Inherited From: cdf.queries.BaseQuery#getErrorHandler

Parameters:
Name Default Value Summary
callback : function

Callback to call if the query fails.
Returns:
Name Description
function

Error callback handler.
getOption(prop) : Object

Gets an option (fallback for when the OptionManager is not available).

Source: queries/BaseQuery.js, line 182

Inherited From: cdf.queries.BaseQuery#getOption

Parameters:
Name Default Value Summary
prop : string

The property from where to get the options.
Returns:
Name Description
Object

Value for the option.
getPage(targetPage, outsideCallback) : boolean | Object

Gets the set of results for the page at index targetPage (0-indexed).

Source: queries/BaseQuery.js, line 579

Inherited From: cdf.queries.BaseQuery#getPage

Parameters:
Name Default Value Summary
targetPage : number

Index of the page to get, starting at index 0.
outsideCallback : function

Success callback to execute when the page is retrieved.
Returns:
Name Description
boolean | Object

false if the page is already the current one, otherwise returns the result of calling doQuery.
Throws:
Name Description
InvalidPage

If targetPage is not a positive number.
getSuccessHandler(callback) : function

Gets the success callback handler that executes the provided callback when the query executes successfully.

Source: queries/BaseQuery.js, line 229

Inherited From: cdf.queries.BaseQuery#getSuccessHandler

Parameters:
Name Default Value Summary
callback : function

Callback to call after the query is successful.
Returns:
Name Description
function

Success callback handler.
init(opts)

Initializes a CDA query.

Source: queries/CdaQuery.js, line 122

Overrides: cdf.queries.BaseQuery#init

Parameters:
Name Default Value Summary
opts : object

The query definition object.

Parameters:
Name Default Value Summary
path : string

The path to the CDA file.
dataAccessId : string

The Data access identifier.
sortBy : string
Optional

The sorting order.
pageSize : number
Optional

The page size.
outputIndexId : number
Optional

The output index identifier.
Throws:
Name Description
InvalidQuery

If the opts parameter does not contain a path nor a data access identifier.
initPage(pageSize, outsideCallback) : boolean | Object

Sets the page size and gets the first page of results.

Source: queries/BaseQuery.js, line 651

Inherited From: cdf.queries.BaseQuery#initPage

Parameters:
Name Default Value Summary
pageSize : number

Page Size.
outsideCallback : function

Success callback to execute after query is retrieved.
Returns:
Name Description
boolean | Object

false if pageSize is invalid, otherwise the result of calling doQuery.
Throws:
Name Description
InvalidPageSize

If the page size is not a positive number.
lastProcessedResults() : Object

Gets the last retrieved result after being processed by postFetch.

Source: queries/BaseQuery.js, line 431

Inherited From: cdf.queries.BaseQuery#lastProcessedResults

Returns:
Name Description
Object

A deep copy of the the last result set obtained from the server after being processed by postFetch.
Throws:
Name Description
NoCachedResults

If there have not been previous calls to the server.
lastResults() : Object

Gets the last retrieved result.

Source: queries/BaseQuery.js, line 415

Inherited From: cdf.queries.BaseQuery#lastResults

Returns:
Name Description
Object

A deep copy of the last result set obtained from the server.
Throws:
Name Description
NoCachedResults

If there have not been previous calls to the server.
nextPage(outsideCallback) : Object

Gets the next page of results, as controlled by the pageSize option.

Source: queries/BaseQuery.js, line 533

Inherited From: cdf.queries.BaseQuery#nextPage

Parameters:
Name Default Value Summary
outsideCallback : function

Success callback to execute when the next page of results is retrieved.
Returns:
Name Description
Object

The result of calling doQuery.
Throws:
Name Description
InvalidPageSize

If the page size option is not a positive number.
pageStartingAt(page, outsideCallback) : boolean | Object

Runs the query, setting a starting page before doing so. If the starting page matches the already selected one, the query run is canceled and false is returned.

Source: queries/BaseQuery.js, line 623

Inherited From: cdf.queries.BaseQuery#pageStartingAt

Parameters:
Name Default Value Summary
page : number

Starting page index.
outsideCallback : function

Success callback to execute after the server-side query is processed.
Returns:
Name Description
boolean | Object

false if the query run is canceled, otherwise the result of calling doQuery.
previousPage(outsideCallback) : Object

Gets the previous page of results, as controlled by the pageSize option.

Source: queries/BaseQuery.js, line 554

Inherited From: cdf.queries.BaseQuery#previousPage

Parameters:
Name Default Value Summary
outsideCallback : function

Success callback to execute when the previous page of results is retrieved.
Returns:
Name Description
Object

The result of calling doQuery.
Throws:
Name Description
AtBeginning

If current page is the first one.
reprocessLastResults(outerCallback) : Object

Reruns the success callback on the last retrieved result set from the server.

Source: queries/BaseQuery.js, line 448

Inherited From: cdf.queries.BaseQuery#reprocessLastResults

Parameters:
Name Default Value Summary
outerCallback : function

Success callback.
Returns:
Name Description
Object

The result of calling the specified callback.
Throws:
Name Description
NoCachedResults

If there have not been previous calls to the server.

See also: reprocessResults

reprocessResults(outsideCallback) : Object

Alias for reprocessLastResults.

Source: queries/BaseQuery.js, line 473

Inherited From: cdf.queries.BaseQuery#reprocessResults

Parameters:
Name Default Value Summary
outsideCallback : function

Success callback.
Returns:
Name Description
Object

The result of calling the specified callback.
Throws:
Name Description
NoCachedResults

If there have not been previous calls to the server.

See also: reprocessLastResults

setAjaxOptions(newOptions)

Sets the jQuery.ajax options for the query.

Source: queries/BaseQuery.js, line 298

Inherited From: cdf.queries.BaseQuery#setAjaxOptions

Parameters:
Name Default Value Summary
newOptions : Object

Ajax options to be added.
setCallback(callback)

Sets the success callback for the query.

Source: queries/BaseQuery.js, line 493

Inherited From: cdf.queries.BaseQuery#setCallback

Parameters:
Name Default Value Summary
callback : function

The success callback function.
setErrorCallback(callback)

Sets the error callback for the query.

Source: queries/BaseQuery.js, line 503

Inherited From: cdf.queries.BaseQuery#setErrorCallback

Parameters:
Name Default Value Summary
callback : function

The error callback function.
setOption(prop, value)

Sets an option (fallback for when the OptionManager is not available).

Source: queries/BaseQuery.js, line 193

Inherited From: cdf.queries.BaseQuery#setOption

Parameters:
Name Default Value Summary
prop : string

The property for which the value will be set.
value : Object

Value for the property.
setPageSize(pageSize)

Sets the page size.

Source: queries/BaseQuery.js, line 637

Inherited From: cdf.queries.BaseQuery#setPageSize

Parameters:
Name Default Value Summary
pageSize : number

Page size to set.
setPageStartingAt(targetPage) : boolean

Sets the starting page for later executions of the query.

Source: queries/BaseQuery.js, line 601

Inherited From: cdf.queries.BaseQuery#setPageStartingAt

Parameters:
Name Default Value Summary
targetPage : number

Index of the page to get.
Returns:
Name Description
boolean

true if the page is correctly set, false if the target page is already the selected one.
Throws:
Name Description
InvalidPage

If the page number is not a positive number.
setParameters(params)

Sets query parameters.

Source: queries/BaseQuery.js, line 483

Inherited From: cdf.queries.BaseQuery#setParameters

Parameters:
Name Default Value Summary
params : Object

The query parameters.
setSearchPattern(pattern)

Sets the search pattern for the query.

Source: queries/BaseQuery.js, line 513

Inherited From: cdf.queries.BaseQuery#setSearchPattern

Parameters:
Name Default Value Summary
pattern : string

The search pattern.
setSortBy(sortBy) : boolean

Sets the sort by columns.

CDA expects an array of terms consisting of a number and a letter that's either "A" or "D". Each term denotes, in order, a column number and a sort direction: "0A" would then be sorting the first column ascending, and "1D" would sort the second column in descending order. This function accepts either an array with the search terms, or a comma-separated string with the terms: "0A,1D" would then mean the same as the array ["0A","1D"], which would sort the results first by the first column (ascending), and then by the second column (descending).

Source: queries/CdaQuery.js, line 294

Overrides: cdf.queries.BaseQuery#setSortBy

Parameters:
Name Default Value Summary
sortBy : string | Array.<<code>string>

Sorting columns order.
Returns:
Name Description
boolean

true if the sort by condition has changed, false if it remained the same.
Throws:
Name Description
InvalidSortExpression

If the sort by columns are not correctly defined.
sortBy(sortBy, outsideCallback) : boolean | Object

Sorts the result set. See the notes on sort columns on the setSortBy method.

Source: queries/CdaQuery.js, line 362

Overrides: cdf.queries.BaseQuery#sortBy

Parameters:
Name Default Value Summary
sortBy : string

Sorting columns order.
outsideCallback : function

Callback to call after the sorting has been processed.
Returns:
Name Description
boolean | Object

false if the sort by conditions have not changed, the result of calling doQuery otherwise.
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