org.apache.commons.jexl2

Class UnifiedJEXL.NestedExpression

java.lang.Object

org.apache.commons.jexl2.UnifiedJEXL.Expression

org.apache.commons.jexl2.UnifiedJEXL.JexlBasedExpression

org.apache.commons.jexl2.UnifiedJEXL.NestedExpression

Enclosing class:

UnifiedJEXL

private class UnifiedJEXL.NestedExpression
extends UnifiedJEXL.JexlBasedExpression

An immediate expression nested into a deferred expression. #{...${jexl}...} Note that the deferred syntax is JEXL's, not UnifiedJEXL.

Field Summary

Fields inherited from class org.apache.commons.jexl2.UnifiedJEXL.JexlBasedExpression

expr, node

Fields inherited from class org.apache.commons.jexl2.UnifiedJEXL.Expression

source

Constructor Summary

Constructors

Constructor and Description
NestedExpression(java.lang.CharSequence expr, JexlNode node, UnifiedJEXL.Expression source) Creates a nested expression.

Method Summary

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

Methods inherited from class org.apache.commons.jexl2.UnifiedJEXL.JexlBasedExpression

getVariables, getVariables

Methods inherited from class org.apache.commons.jexl2.UnifiedJEXL.Expression

asString, evaluate, getSource, isDeferred, prepare, toString

Methods inherited from class java.lang.Object

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

Constructor Detail

NestedExpression

NestedExpression(java.lang.CharSequence expr,
                 JexlNode node,
                 UnifiedJEXL.Expression source)

Creates a nested expression.

Parameters:

expr - the expression as a string

node - the expression as an AST

source - the source expression if any

Method Detail

asString

public java.lang.StringBuilder asString(java.lang.StringBuilder strb)

Description copied from class: UnifiedJEXL.JexlBasedExpression

Adds this expression's string representation to a StringBuilder.

Overrides:

asString in class UnifiedJEXL.JexlBasedExpression

Parameters:

strb - the builder to fill

Returns:

the builder argument

isImmediate

public boolean isImmediate()

Checks whether this expression is immediate.

Overrides:

isImmediate in class UnifiedJEXL.Expression

Returns:

true if immediate, false otherwise

getType

UnifiedJEXL.ExpressionType getType()

Gets this expression type.

Specified by:

getType in class UnifiedJEXL.Expression

Returns:

its type

prepare

protected UnifiedJEXL.Expression prepare(Interpreter interpreter)

Prepares a sub-expression for interpretation.

Overrides:

prepare in class UnifiedJEXL.Expression

Parameters:

interpreter - a JEXL interpreter

Returns:

a prepared expression

evaluate

protected java.lang.Object evaluate(Interpreter interpreter)

Intreprets a sub-expression.

Overrides:

evaluate in class UnifiedJEXL.JexlBasedExpression

Parameters:

interpreter - a JEXL interpreter

Returns:

the result of interpretation