com.redhat.lightblue.eval

Class QueryEvaluationContext

java.lang.Object

com.redhat.lightblue.eval.QueryEvaluationContext

public class QueryEvaluationContext
extends Object

An instance of the query evaluation context is passed to query evaluation logic, mainly too keep track of the context for nested queries, and remember what elements of arrays matched the query, if any, once the evaluation is complete.

Constructor Summary

Constructors

Constructor and Description
QueryEvaluationContext(com.fasterxml.jackson.databind.JsonNode root)
QueryEvaluationContext(com.fasterxml.jackson.databind.JsonNode root, com.fasterxml.jackson.databind.JsonNode contextRoot, Path p)

Method Summary

Modifier and Type	Method and Description
Path	absolutePath(Path p)
void	elementNestedContext(com.fasterxml.jackson.databind.JsonNode node, int index)
QueryEvaluationContext	firstElementNestedContext(com.fasterxml.jackson.databind.JsonNode node, Path arrayField)
QueryEvaluationContext	getNestedContext(com.fasterxml.jackson.databind.JsonNode node, Path relativePath)
QueryEvaluationContext	getNestedContext(Path relativePath)
com.fasterxml.jackson.databind.JsonNode	getNode()
com.fasterxml.jackson.databind.JsonNode	getNode(Path relativePath)
KeyValueCursor<Path,com.fasterxml.jackson.databind.JsonNode>	getNodes(Path relativePath)
KeyValueCursor<Path,com.fasterxml.jackson.databind.JsonNode>	getNodes(Path relativePath, boolean returnMissingNodes)
Path	getPath()
boolean	getResult() query evaluation result
com.fasterxml.jackson.databind.JsonNode	getRoot()
void	setResult(boolean b)

Methods inherited from class java.lang.Object

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

Constructor Detail

QueryEvaluationContext

public QueryEvaluationContext(com.fasterxml.jackson.databind.JsonNode root)

QueryEvaluationContext

public QueryEvaluationContext(com.fasterxml.jackson.databind.JsonNode root,
                              com.fasterxml.jackson.databind.JsonNode contextRoot,
                              Path p)

Method Detail

getRoot

public com.fasterxml.jackson.databind.JsonNode getRoot()

getNode

public com.fasterxml.jackson.databind.JsonNode getNode()

getNode

public com.fasterxml.jackson.databind.JsonNode getNode(Path relativePath)

getNodes

public KeyValueCursor<Path,com.fasterxml.jackson.databind.JsonNode> getNodes(Path relativePath)

getNodes

public KeyValueCursor<Path,com.fasterxml.jackson.databind.JsonNode> getNodes(Path relativePath,
                                                                             boolean returnMissingNodes)

getPath

public Path getPath()

getNestedContext

public QueryEvaluationContext getNestedContext(Path relativePath)

getNestedContext

public QueryEvaluationContext getNestedContext(com.fasterxml.jackson.databind.JsonNode node,
                                               Path relativePath)

firstElementNestedContext

public QueryEvaluationContext firstElementNestedContext(com.fasterxml.jackson.databind.JsonNode node,
                                                        Path arrayField)

elementNestedContext

public void elementNestedContext(com.fasterxml.jackson.databind.JsonNode node,
                                 int index)

absolutePath

public Path absolutePath(Path p)

getResult

public boolean getResult()

query evaluation result

setResult

public void setResult(boolean b)