Package io.inversion.action.db

Class DbGetAction<A extends DbGetAction>

java.lang.Object

io.inversion.Rule<A>

io.inversion.Action<A>

io.inversion.action.db.DbGetAction<A>

All Implemented Interfaces:

java.lang.Comparable<A>

public class DbGetAction<A extends DbGetAction>
extends Action<A>

Nested Class Summary

Nested classes/interfaces inherited from class io.inversion.Rule

Rule.RuleMatcher

Field Summary

Fields

Modifier and Type	Field	Description
protected int	maxRows

Fields inherited from class io.inversion.Rule

ALL_METHODS, configMap, description, excludeMatchers, excludeOn, includeMatchers, includeOn, log, name, order, params

Constructor Summary

Constructors

Constructor	Description
DbGetAction()

Method Summary

Modifier and Type	Method	Description
void	configureOp(io.inversion.utils.Task task, Op op)	This task has been selected to run as part of the supplied operation, this callback allows actions to perform any custom configuration on the op.
protected void	expand(Request request, Collection collection, java.util.List<io.inversion.json.JSMap> parentObjs, java.util.Set expands, java.lang.String expandsPath, org.apache.commons.collections4.map.MultiKeyMap pkCache)	This is more complicated than it seems like it would need to be because it attempts to retrieve all values of a relationship at a time for the whole document.
protected static java.lang.String	expandPath(java.lang.String path, java.lang.Object next)
protected java.util.List<Rule.RuleMatcher>	getDefaultIncludeMatchers()	Designed to allow subclasses to provide a default match behavior of no configuration was provided by the developer.
protected static java.lang.String	getForeignKey(Relationship rel, io.inversion.json.JSMap node)
int	getMaxRows()
protected java.util.List<io.inversion.utils.KeyValue<java.lang.String,java.lang.String>>	getRelatedKeys(Relationship rel, Index idxToMatch, Index idxToRetrieve, java.util.List<java.lang.String> toMatchEks)
protected static java.lang.String	getResourceKey(Collection collection, io.inversion.json.JSMap node)
protected java.util.List<io.inversion.json.JSMap>	recursiveGet(org.apache.commons.collections4.map.MultiKeyMap pkCache, Collection collection, java.util.Collection resourceKeys, java.lang.String expandsPath)
void	run(Request req, Response res)	Override this method with your custom business logic or override one of the http method "doMETHOD" specific handlers.
protected Results	select(Request req, Collection collection, Api api)
protected static boolean	shouldExpand(java.util.Set<java.lang.String> expands, java.lang.String path, Relationship rel)
static java.lang.String	stripTerms(java.lang.String url, java.lang.String... tokens)
DbGetAction	withMaxRows(int maxRows)

Methods inherited from class io.inversion.Action

doDelete, doGet, doPatch, doPost, doPut, getFullIncludePaths, getIncludePaths, isDecoration, joinPaths, joinPaths0, run0, withDecoration

Methods inherited from class io.inversion.Rule

afterWiringComplete, checkLazyConfig, compareTo, doLazyConfig, getAllExcludePaths, getAllIncludeMethods, getAllIncludePaths, getDescription, getExcludeMatchers, getIncludeMatchers, getName, getOrder, getParams, match, match, matches, matches, toString, withDescription, withExcludeOn, withExcludeOn, withIncludeOn, withIncludeOn, withName, withOrder, withParam, withParams

Methods inherited from class java.lang.Object

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

Field Detail

maxRows

protected int maxRows

Constructor Detail

DbGetAction

public DbGetAction()

Method Detail

configureOp

public void configureOp(io.inversion.utils.Task task,
                        Op op)

This task has been selected to run as part of the supplied operation, this callback allows actions to perform any custom configuration on the op.

Overrides:

configureOp in class Action<A extends DbGetAction>

Parameters:

task -

op -

getDefaultIncludeMatchers

protected java.util.List<Rule.RuleMatcher> getDefaultIncludeMatchers()

Description copied from class: Rule

Designed to allow subclasses to provide a default match behavior of no configuration was provided by the developer.

Overrides:

getDefaultIncludeMatchers in class Rule<A extends DbGetAction>

Returns:

the default include match "*","*"

getForeignKey

protected static java.lang.String getForeignKey(Relationship rel,
                                                io.inversion.json.JSMap node)

getResourceKey

protected static java.lang.String getResourceKey(Collection collection,
                                                 io.inversion.json.JSMap node)

stripTerms

public static java.lang.String stripTerms(java.lang.String url,
                                          java.lang.String... tokens)

expandPath

protected static java.lang.String expandPath(java.lang.String path,
                                             java.lang.Object next)

shouldExpand

protected static boolean shouldExpand(java.util.Set<java.lang.String> expands,
                                      java.lang.String path,
                                      Relationship rel)

run

public void run(Request req,
                Response res)
         throws ApiException

Description copied from class: Action

Override this method with your custom business logic or override one of the http method "doMETHOD" specific handlers.

Overrides:

run in class Action<A extends DbGetAction>

Parameters:

req - the Request being serviced

res - the Reponse being generated

Throws:

ApiException

select

protected Results select(Request req,
                         Collection collection,
                         Api api)
                  throws ApiException

Throws:

ApiException

expand

protected void expand(Request request,
                      Collection collection,
                      java.util.List<io.inversion.json.JSMap> parentObjs,
                      java.util.Set expands,
                      java.lang.String expandsPath,
                      org.apache.commons.collections4.map.MultiKeyMap pkCache)

This is more complicated than it seems like it would need to be because it attempts to retrieve all values of a relationship at a time for the whole document. It does not run a recursive query for each resource and each relationship which could mean hundreds and hundreds of queries per document. This should result in number of queries proportional to the number of expands terms that does not increase with the number of results at any level of the expansion.

Parameters:

request - the request being serviced

collection - the collection being queried

parentObjs - the records that were just selected

expands - the definition of which properties should be expanded

expandsPath - the path we are currently on

pkCache - a cache of things already looked up

getRelatedKeys

protected java.util.List<io.inversion.utils.KeyValue<java.lang.String,java.lang.String>> getRelatedKeys(Relationship rel,
                                                                                                              Index idxToMatch,
                                                                                                              Index idxToRetrieve,
                                                                                                              java.util.List<java.lang.String> toMatchEks)
                                                                                                       throws ApiException

Throws:

ApiException

recursiveGet

protected java.util.List<io.inversion.json.JSMap> recursiveGet(org.apache.commons.collections4.map.MultiKeyMap pkCache,
                                                               Collection collection,
                                                               java.util.Collection resourceKeys,
                                                               java.lang.String expandsPath)
                                                        throws ApiException

Throws:

ApiException

getMaxRows

public int getMaxRows()

withMaxRows

public DbGetAction withMaxRows(int maxRows)