Package org.apache.commons.jexl3.internal

Class TemplateEngine.NestedExpression

java.lang.Object

org.apache.commons.jexl3.internal.TemplateEngine.TemplateExpression

org.apache.commons.jexl3.internal.TemplateEngine.JexlBasedExpression

org.apache.commons.jexl3.internal.TemplateEngine.NestedExpression

All Implemented Interfaces:

JxltEngine.Expression

Enclosing class:

TemplateEngine

final class TemplateEngine.NestedExpression
extends TemplateEngine.JexlBasedExpression

An immediate unified expression nested into a deferred unified expression. #{...${jexl}...} Note that the deferred syntax is JEXL's.

Field Summary

Fields inherited from class org.apache.commons.jexl3.internal.TemplateEngine.JexlBasedExpression

expr, node

Fields inherited from class org.apache.commons.jexl3.internal.TemplateEngine.TemplateExpression

source

Constructor Summary

Constructors

Constructor	Description
NestedExpression(CharSequence expr, JexlNode node, TemplateEngine.TemplateExpression source)	Creates a nested unified expression.

Method Summary

Modifier and Type	Method	Description
StringBuilder	asString(StringBuilder strb)	Adds this expression's string representation to a StringBuilder.
protected Object	evaluate(Interpreter interpreter)	Interprets a sub-expression.
(package private) TemplateEngine.ExpressionType	getType()	Gets this TemplateExpression type.
boolean	isImmediate()	Checks whether this expression is immediate.
protected TemplateEngine.TemplateExpression	prepare(Interpreter interpreter)	Prepares a sub-expression for interpretation.

Methods inherited from class org.apache.commons.jexl3.internal.TemplateEngine.JexlBasedExpression

getInfo, getVariables, getVariables, options

Methods inherited from class org.apache.commons.jexl3.internal.TemplateEngine.TemplateExpression

asString, evaluate, evaluate, getSource, isDeferred, prepare, prepare, toString

Methods inherited from class java.lang.Object

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

Constructor Details

NestedExpression

NestedExpression(CharSequence expr,
 JexlNode node,
 TemplateEngine.TemplateExpression source)

Creates a nested unified expression.

Parameters:

expr - the unified expression as a string

node - the unified expression as an AST

source - the source unified expression if any

Method Details

asString

public StringBuilder asString(StringBuilder strb)

Description copied from interface: JxltEngine.Expression

Adds this expression's string representation to a StringBuilder.

Specified by:

asString in interface JxltEngine.Expression

Overrides:

asString in class TemplateEngine.JexlBasedExpression

Parameters:

strb - the builder to fill

Returns:

the builder argument

evaluate

protected Object evaluate(Interpreter interpreter)

Description copied from class: TemplateEngine.TemplateExpression

Interprets a sub-expression.

Overrides:

evaluate in class TemplateEngine.JexlBasedExpression

Parameters:

interpreter - a JEXL interpreter

Returns:

the result of interpretation

getType

TemplateEngine.ExpressionType getType()

Description copied from class: TemplateEngine.TemplateExpression

Gets this TemplateExpression type.

Specified by:

getType in class TemplateEngine.TemplateExpression

Returns:

its type

isImmediate

public boolean isImmediate()

Description copied from interface: JxltEngine.Expression

Checks whether this expression is immediate.

Specified by:

isImmediate in interface JxltEngine.Expression

Overrides:

isImmediate in class TemplateEngine.TemplateExpression

Returns:

true if immediate, false otherwise

prepare

protected TemplateEngine.TemplateExpression prepare(Interpreter interpreter)

Description copied from class: TemplateEngine.TemplateExpression

Prepares a sub-expression for interpretation.

Overrides:

prepare in class TemplateEngine.TemplateExpression

Parameters:

interpreter - a JEXL interpreter

Returns:

a prepared unified expression