org.labkey.remoteapi.query

Class SaveRowsCommand

java.lang.Object

org.labkey.remoteapi.Command<ResponseType>

org.labkey.remoteapi.PostCommand<SaveRowsResponse>

org.labkey.remoteapi.query.SaveRowsCommand

Direct Known Subclasses:

DeleteRowsCommand, InsertRowsCommand, UpdateRowsCommand

public abstract class SaveRowsCommand
extends PostCommand<SaveRowsResponse>

Base class for commands that make changes to rows exposed from a given query in a given schema. Clients should use UpdateRowsCommand, InsertRowsCommand or DeleteRowsCommand and not this class directly.

All three of these sub-classes post similar JSON to the server, so this class does all the common work. The client must supply three things: the schemaName, the queryName and an array of 'rows' (i.e. Maps). The rows are added via the addRow(Map) or setRows(List) methods.

All data exposed from the LabKey Server is organized into a set of queries contained in a set of schemas. A schema is simply a group of queries, identified by a name (e.g., 'lists' or 'study'). A query is particular table or view within that schema (e.g., 'People' or 'Peptides'). Currently, clients may update rows in base tables only, and not in joined views. Therefore the query name must be the name of a table in the schema.

To view the schemas and queries exposed in a given folder, add a Query web part to your portal page and choose the option "Show the list of tables in this schema" in the part configuration page. Alternatively, if it is exposed, click on the Query tab across the top of the main part of the page.

Examples:

  // May need to add CONTEXT_PATH for dev instances
  Connection cn = new Connection("http://localhost:8080", user, password);

  //Insert Rows Command
  InsertRowsCommand cmd = new InsertRowsCommand("lists", "People");

  Map<String,Object> row = new HashMap<String,Object>();
  row.put("FirstName", "Insert");
  row.put("LastName", "Test");

  cmd.addRow(row); //can add multiple rows to insert many at once
  SaveRowsResponse resp = cmd.execute(cn, "PROJECT_NAME");

  //get the newly-assigned primary key value from the first return row
  int newKey = resp.getRows().get(0).get("Key");

  //Update Rows Command
  UpdateRowsCommand cmdUpd = new UpdateRowsCommand("lists", "People");
  row = new HashMap<String,Object>();
  row.put("Key", newKey);
  row.put("LastName", "Test UPDATED");
  cmdUpd.addRow(row);
  resp = cmdUpd.execute(cn, "PROJECT_NAME");

  //Delete Rows Command
  DeleteRowsCommand cmdDel = new DeleteRowsCommand("lists", "People");
  row = new HashMap<String,Object>();
  row.put("Key", newKey);
  cmdDel.addRow(row);
  resp = cmdDel.execute(cn, "PROJECT_NAME");
 

Nested Class Summary

Nested classes/interfaces inherited from class org.labkey.remoteapi.Command

Command.CommonParameters, Command.Response

Field Summary

Fields inherited from class org.labkey.remoteapi.Command

CONTENT_TYPE_JSON

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	SaveRowsCommand(SaveRowsCommand source)
protected	SaveRowsCommand(java.lang.String schemaName, java.lang.String queryName, java.lang.String actionName) Constructs a new SaveRowsCommand for a given schema, query and action name.

Method Summary

Modifier and Type	Method and Description
void	addRow(java.util.Map<java.lang.String,java.lang.Object> row) Adds a row to the list of rows to be sent to the server.
abstract SaveRowsCommand	copy() Returns a copy of this object.
protected SaveRowsResponse	createResponse(java.lang.String text, int status, java.lang.String contentType, org.json.simple.JSONObject json) Creates an instance of the response class, initialized with the response text, the HTTP status code, and parsed JSONObject.
java.util.Map<java.lang.String,java.lang.Object>	getExtraContext() Gets the additional extra context.
org.json.simple.JSONObject	getJsonObject() Dynamically builds the JSON object to send based on the current schema name, query name and rows list.
java.lang.String	getQueryName() Returns the query name
java.util.List<java.util.Map<java.lang.String,java.lang.Object>>	getRows() Returns the current list of 'rows' (i.e., Maps) that will be sent to the server.
java.lang.String	getSchemaName() Returns the schema name.
void	setExtraContext(java.util.Map<java.lang.String,java.lang.Object> extraContext) Sets the additional extra context.
void	setQueryName(java.lang.String queryName) Sets a new query name to update
void	setRows(java.util.List<java.util.Map<java.lang.String,java.lang.Object>> rows) Sets the list of 'rows' (i.e., Maps) to be sent to the server.
void	setSchemaName(java.lang.String schemaName) Sets the schema name

Methods inherited from class org.labkey.remoteapi.PostCommand

createRequest, setJsonObject

Methods inherited from class org.labkey.remoteapi.Command

_execute, execute, getActionName, getActionUrl, getControllerName, getHttpRequest, getParameters, getParamValueAsString, getQueryString, getRequiredVersion, getTimeout, setParameters, setRequiredVersion, setTimeout

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

SaveRowsCommand

protected SaveRowsCommand(java.lang.String schemaName,
                          java.lang.String queryName,
                          java.lang.String actionName)

Constructs a new SaveRowsCommand for a given schema, query and action name.

Parameters:

schemaName - The schema name.

queryName - The query name.

actionName - The action name to call (supplied by the derived class).

SaveRowsCommand

protected SaveRowsCommand(SaveRowsCommand source)

Method Detail

getSchemaName

public java.lang.String getSchemaName()

Returns the schema name.

Returns:

The schema name.

setSchemaName

public void setSchemaName(java.lang.String schemaName)

Sets the schema name

Parameters:

schemaName - The new schema name.

getQueryName

public java.lang.String getQueryName()

Returns the query name

Returns:

the query name.

setQueryName

public void setQueryName(java.lang.String queryName)

Sets a new query name to update

Parameters:

queryName - the query name.

getExtraContext

public java.util.Map<java.lang.String,java.lang.Object> getExtraContext()

Gets the additional extra context.

Returns:

the extra context.

setExtraContext

public void setExtraContext(java.util.Map<java.lang.String,java.lang.Object> extraContext)

Sets the additional extra context.

Parameters:

extraContext - The extra context.

getRows

public java.util.List<java.util.Map<java.lang.String,java.lang.Object>> getRows()

Returns the current list of 'rows' (i.e., Maps) that will be sent to the server.

Returns:

The list of rows.

setRows

public void setRows(java.util.List<java.util.Map<java.lang.String,java.lang.Object>> rows)

Sets the list of 'rows' (i.e., Maps) to be sent to the server.

Parameters:

rows - The rows to send

addRow

public void addRow(java.util.Map<java.lang.String,java.lang.Object> row)

Adds a row to the list of rows to be sent to the server.

Parameters:

row - The row to add

getJsonObject

public org.json.simple.JSONObject getJsonObject()

Dynamically builds the JSON object to send based on the current schema name, query name and rows list.

Overrides:

getJsonObject in class PostCommand<SaveRowsResponse>

Returns:

The JSON object to send.

createResponse

protected SaveRowsResponse createResponse(java.lang.String text,
                                          int status,
                                          java.lang.String contentType,
                                          org.json.simple.JSONObject json)

Description copied from class: Command

Creates an instance of the response class, initialized with the response text, the HTTP status code, and parsed JSONObject.

Override this method to create an instance of a different class that extends CommandResponse

Overrides:

createResponse in class Command<SaveRowsResponse>

Parameters:

text - The response text from the server.

status - The HTTP status code.

contentType - The Content-Type header value.

json - The parsed JSONObject (or null if no JSON was returned).

Returns:

An instance of the response object.

copy

public abstract SaveRowsCommand copy()

Description copied from class: Command

Returns a copy of this object. Derived classes should override this to copy their own data members

Overrides:

copy in class PostCommand<SaveRowsResponse>

Returns:

A copy of this object