Package com.hubspot.jinjava.util

Class EagerContextWatcher

java.lang.Object

com.hubspot.jinjava.util.EagerContextWatcher

@Beta
public class EagerContextWatcher
extends Object

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	EagerContextWatcher.EagerChildContextConfig

Constructor Summary

Constructors

Constructor	Description
EagerContextWatcher()

Method Summary

Modifier and Type	Method	Description
static EagerExecutionResult	executeInChildContext(Function<JinjavaInterpreter,EagerExpressionResolver.EagerExpressionResult> function, JinjavaInterpreter interpreter, EagerContextWatcher.EagerChildContextConfig eagerChildContextConfig)	Execute the specified functions within a protected context.

Methods inherited from class java.lang.Object

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

Constructor Detail

EagerContextWatcher

public EagerContextWatcher()

Method Detail

executeInChildContext

public static EagerExecutionResult executeInChildContext(Function<JinjavaInterpreter,EagerExpressionResolver.EagerExpressionResult> function,
                                                         JinjavaInterpreter interpreter,
                                                         EagerContextWatcher.EagerChildContextConfig eagerChildContextConfig)

Execute the specified functions within a protected context. Additionally, if the execution causes existing values on the context to become deferred, then their previous values will wrapped in a set tag that gets prepended to the returned result. The function is run in deferredExecutionMode=true, where the context needs to be protected from having values updated or set, such as when evaluating both the positive and negative nodes in an if statement.

Parameters:

function - Function to run within a "protected" child context

interpreter - JinjavaInterpreter to create a child from.

eagerChildContextConfig - Configuration for evaluation as defined in EagerContextWatcher.EagerChildContextConfig

Returns:

An EagerExecutionResult where: result is the string result of function. prefixToPreserveState is either blank or a set tag that preserves the state within the output for a second rendering pass.