com.caucho.el
Class ArrayResolverExpr

java.lang.Object
  javax.el.Expression
      javax.el.ValueExpression
          com.caucho.el.Expr
              com.caucho.el.ArrayResolverExpr

All Implemented Interfaces:

java.io.Serializable

public class ArrayResolverExpr
extends Expr

Represents an array reference:

 a[b]
 

See Also:

Serialized Form

Field Summary

Fields inherited from class com.caucho.el.Expr

L, log

Constructor Summary

ArrayResolverExpr(Expr left, Expr right)
Creates a new array expression.

Method Summary

Expr	createMethod(Expr[] args) Creates a method for constant arrays.
boolean	equals(java.lang.Object o) Returns true for equal strings.
Expr	getExpr() Returns the base expression.
Expr	getIndex() Returns the index expression.
MethodInfo	getMethodInfo(ELContext env, java.lang.Class<?> returnType, java.lang.Class<?>[] argTypes) Evaluates the expression, returning an object.
java.lang.Class<?>	getType(ELContext env) Evaluates the expression as applicable to the provided context, and returns the most general type that can be accepted by the setValue(javax.el.ELContext, java.lang.Object) method.
java.lang.Object	getValue(ELContext env) Evaluate the expression as an object.
java.lang.Object	invoke(ELContext env, java.lang.Class<?>[] argTypes, java.lang.Object[] args) Evaluates the expression, returning an object.
boolean	isReadOnly(ELContext env) Returns the read-only value of the expression.
void	printCreate(WriteStream os) Prints the code to create an LongLiteral.
void	setValue(ELContext env, java.lang.Object value) Evaluate the expression as an object.
java.lang.String	toString() Returns a readable representation of the expr.

Methods inherited from class com.caucho.el.Expr

coerceToType, createField, createField, error, evalBigDecimal, evalBigInteger, evalBoolean, evalCharacter, evalDouble, evalLong, evalObject, evalPeriod, evalString, evalStringWithNull, getExpectedType, getExpressionString, hashCode, invocationError, isConstant, isDouble, isDoubleString, isLiteralText, print, print, printEscaped, printEscapedString, setProperty, toBigDecimal, toBigInteger, toBoolean, toCharacter, toDouble, toLong, toStream, toStream, toStream, toStreamEscaped, toStreamEscaped, toStreamEscaped, toString, toString, toString, toString, toString, toStringWithNull

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

ArrayResolverExpr

public ArrayResolverExpr(Expr left,
                         Expr right)

Creates a new array expression.

Parameters:

left - the object expression

right - the index expression.

Method Detail

getExpr

public Expr getExpr()

Returns the base expression.

getIndex

public Expr getIndex()

Returns the index expression.

createMethod

public Expr createMethod(Expr[] args)

Creates a method for constant arrays.

Overrides:

createMethod in class Expr

Parameters:

args - the arguments for the method

getType

public java.lang.Class<?> getType(ELContext env)
                           throws PropertyNotFoundException,
                                  ELException

Evaluates the expression as applicable to the provided context, and returns the most general type that can be accepted by the setValue(javax.el.ELContext, java.lang.Object) method.

Overrides:

getType in class Expr

Parameters:

env -

Returns:

Throws:

PropertyNotFoundException

ELException

getValue

public java.lang.Object getValue(ELContext env)
                          throws ELException

Evaluate the expression as an object.

Specified by:

getValue in class Expr

Parameters:

env - the variable environment

Returns:

the evaluated object

Throws:

ELException

isReadOnly

public boolean isReadOnly(ELContext env)
                   throws ELException

Returns the read-only value of the expression.

Overrides:

isReadOnly in class Expr

Parameters:

env - the variable environment

Returns:

true if read-only

Throws:

ELException

setValue

public void setValue(ELContext env,
                     java.lang.Object value)
              throws ELException

Evaluate the expression as an object.

Overrides:

setValue in class Expr

Parameters:

env - the variable environment

Throws:

ELException

getMethodInfo

public MethodInfo getMethodInfo(ELContext env,
                                java.lang.Class<?> returnType,
                                java.lang.Class<?>[] argTypes)
                         throws ELException

Evaluates the expression, returning an object.

Overrides:

getMethodInfo in class Expr

Parameters:

env - the variable environment

Returns:

the value of the expression as an object

Throws:

ELException

invoke

public java.lang.Object invoke(ELContext env,
                               java.lang.Class<?>[] argTypes,
                               java.lang.Object[] args)
                        throws ELException

Evaluates the expression, returning an object.

Overrides:

invoke in class Expr

Parameters:

env - the variable environment

Returns:

the value of the expression as an object

Throws:

ELException

printCreate

public void printCreate(WriteStream os)
                 throws java.io.IOException

Prints the code to create an LongLiteral.

Overrides:

printCreate in class Expr

Parameters:

os - stream to the generated *.java code

Throws:

java.io.IOException

equals

public boolean equals(java.lang.Object o)

Returns true for equal strings.

Overrides:

equals in class Expr

toString

public java.lang.String toString()

Returns a readable representation of the expr.

Specified by:

toString in class Expr