com.helger.jcodemodel

Interface IJExpression

All Superinterfaces:

IJGenerable

All Known Subinterfaces:

IJAssignmentTarget, IJExpressionStatement

All Known Implementing Classes:

AbstractJAnnotationValueOwned.FullClassNameExpr, AbstractJAnnotationValueOwned.JEnumConstantExpr, AbstractJExpressionAssignmentTargetImpl, AbstractJExpressionImpl, JArray, JArrayCompRef, JAssignment, JAtom, JAtomDouble, JAtomFloat, JAtomInt, JAtomLong, JCast, JEnumConstant, JEnumConstantRef, JFieldRef, JFieldVar, JInvocation, JLambda, JLambdaParam, JOpBinary, JOpTernary, JOpUnary, JOpUnaryTight, JStringLiteral, JVar

public interface IJExpression
extends IJGenerable

A Java expression.

Unlike most of CodeModel, JExpressions are built bottom-up ( meaning you start from leaves and then gradually build complicated expressions by combining them.)

IJExpression defines a series of composer methods, which returns a complicated expression (by often taking other IJExpressions as parameters. For example, you can build "5+2" by JExpr.lit(5).add(JExpr.lit(2))

Method Summary

Methods

Modifier and Type	Method and Description
IJExpression	_instanceof(AbstractJType right)
IJExpression	band(IJExpression right) Bit-wise AND '&'.
IJExpression	bor(IJExpression right) Bit-wise OR '|'.
IJExpression	cand(IJExpression right) Logical AND '&&'.
IJExpression	complement()
JArrayCompRef	component(IJExpression index)
JArrayCompRef	component(int index)
JArrayCompRef	component0()
IJExpression	cor(IJExpression right) Logical OR '||'.
IJExpression	decr()
IJExpression	div(double right)
IJExpression	div(float right)
IJExpression	div(IJExpression right)
IJExpression	div(int right)
IJExpression	div(long right)
IJExpression	eq(IJExpression right) Equals
IJExpression	eq0() Shortcut for eq (JExpr.lit (0))
IJExpression	eqNull() Shortcut for eq (JExpr.
IJExpression	gt(IJExpression right)
IJExpression	gt0()
IJExpression	gte(IJExpression right)
IJExpression	gte0()
IJExpression	incr()
JInvocation	invoke(JMethod method)
JInvocation	invoke(String method)
IJExpression	lt(IJExpression right)
IJExpression	lt0()
IJExpression	lte(IJExpression right)
IJExpression	lte0()
IJExpression	minus()
IJExpression	minus(double right)
IJExpression	minus(float right)
IJExpression	minus(IJExpression right)
IJExpression	minus(int right)
IJExpression	minus(long right)
IJExpression	mod(IJExpression right)
IJExpression	mul(double right)
IJExpression	mul(float right)
IJExpression	mul(IJExpression right)
IJExpression	mul(int right)
IJExpression	mul(long right)
IJExpression	ne(IJExpression right) Not equals
IJExpression	ne0() Shortcut for ne (JExpr.lit (0))
IJExpression	neNull() Shortcut for ne (JExpr.
IJExpression	not()
IJExpression	plus(double right)
IJExpression	plus(float right)
IJExpression	plus(IJExpression right)
IJExpression	plus(int right)
IJExpression	plus(long right)
IJExpression	plus(String right)
IJExpression	predecr()
IJExpression	preincr()
JFieldRef	ref(JVar field)
JFieldRef	ref(String field)
IJExpression	shl(IJExpression right)
IJExpression	shl(int right)
IJExpression	shr(IJExpression right)
IJExpression	shr(int right)
IJExpression	shrz(IJExpression right)
IJExpression	shrz(int right)
IJExpression	xor(IJExpression right)

Methods inherited from interface com.helger.jcodemodel.IJGenerable

generate

Method Detail

minus

@Nonnull
IJExpression minus()

Returns:

-[this]" from "[this].

not

@Nonnull
IJExpression not()

Returns:

![this]" from "[this].

complement

@Nonnull
IJExpression complement()

Returns:

~[this]" from "[this].

incr

@Nonnull
IJExpression incr()

Returns:

[this]++" from "[this].

preincr

@Nonnull
IJExpression preincr()

Returns:

++[this]" from "[this].

decr

@Nonnull
IJExpression decr()

Returns:

[this]--" from "[this].

predecr

@Nonnull
IJExpression predecr()

Returns:

--[this]" from "[this].

plus

@Nonnull
IJExpression plus(@Nonnull
                        IJExpression right)

Parameters:

right - value to add

Returns:

[this]+[right].

plus

@Nonnull
IJExpression plus(double right)

Parameters:

right - value to add

Returns:

[this]+[right].

plus

@Nonnull
IJExpression plus(float right)

Parameters:

right - value to add

Returns:

[this]+[right].

plus

@Nonnull
IJExpression plus(int right)

Parameters:

right - value to add

Returns:

[this]+[right].

plus

@Nonnull
IJExpression plus(long right)

Parameters:

right - value to add

Returns:

[this]+[right].

plus

@Nonnull
IJExpression plus(@Nonnull
                        String right)

Parameters:

right - value to add

Returns:

[this]+[right].

minus

@Nonnull
IJExpression minus(@Nonnull
                         IJExpression right)

Parameters:

right - value to add

Returns:

[this]-[right].

minus

@Nonnull
IJExpression minus(double right)

Parameters:

right - value to subtract

Returns:

[this]-[right].

minus

@Nonnull
IJExpression minus(float right)

Parameters:

right - value to subtract

Returns:

[this]-[right].

minus

@Nonnull
IJExpression minus(int right)

Parameters:

right - value to subtract

Returns:

[this]-[right].

minus

@Nonnull
IJExpression minus(long right)

Parameters:

right - value to subtract

Returns:

[this]-[right].

mul

@Nonnull
IJExpression mul(@Nonnull
                       IJExpression right)

Parameters:

right - value to multiply

Returns:

[this]*[right].

mul

@Nonnull
IJExpression mul(double right)

Parameters:

right - value to multiply

Returns:

[this]*[right].

mul

@Nonnull
IJExpression mul(float right)

Parameters:

right - value to multiply

Returns:

[this]*[right].

mul

@Nonnull
IJExpression mul(int right)

Parameters:

right - value to multiply

Returns:

[this]*[right].

mul

@Nonnull
IJExpression mul(long right)

Parameters:

right - value to multiply

Returns:

[this]*[right].

div

@Nonnull
IJExpression div(@Nonnull
                       IJExpression right)

Parameters:

right - value to divide through

Returns:

[this]/[right].

div

@Nonnull
IJExpression div(double right)

Parameters:

right - value to divide through

Returns:

[this]/[right].

div

@Nonnull
IJExpression div(float right)

Parameters:

right - value to divide through

Returns:

[this]/[right].

div

@Nonnull
IJExpression div(int right)

Parameters:

right - value to divide through

Returns:

[this]/[right].

div

@Nonnull
IJExpression div(long right)

Parameters:

right - value to divide through

Returns:

[this]/[right].

mod

@Nonnull
IJExpression mod(@Nonnull
                       IJExpression right)

Parameters:

right - value to mod with

Returns:

[this]%[right].

shl

@Nonnull
IJExpression shl(@Nonnull
                       IJExpression right)

Parameters:

right - number of bits to shift

Returns:

[this]<<[right].

shl

@Nonnull
IJExpression shl(int right)

Parameters:

right - number of bits to shift

Returns:

[this]<<[right].

shr

@Nonnull
IJExpression shr(@Nonnull
                       IJExpression right)

Parameters:

right - number of bits to shift

Returns:

[this] >> [right].

shr

@Nonnull
IJExpression shr(int right)

Parameters:

right - number of bits to shift

Returns:

[this] >> [right].

shrz

@Nonnull
IJExpression shrz(@Nonnull
                        IJExpression right)

Parameters:

right - number of bits to shift

Returns:

[this] >>> [right].

shrz

@Nonnull
IJExpression shrz(int right)

Parameters:

right - number of bits to shift

Returns:

[this] >>> [right].

band

@Nonnull
IJExpression band(@Nonnull
                        IJExpression right)

Bit-wise AND '&'.

Parameters:

right - value to combine with

Returns:

[this] & [right].

bor

@Nonnull
IJExpression bor(@Nonnull
                       IJExpression right)

Bit-wise OR '|'.

Parameters:

right - value to combine with

Returns:

[this] | [right].

cand

@Nonnull
IJExpression cand(@Nonnull
                        IJExpression right)

Logical AND '&&'.

Parameters:

right - value to combine with

Returns:

[this] && [right].

cor

@Nonnull
IJExpression cor(@Nonnull
                       IJExpression right)

Logical OR '||'.

Parameters:

right - value to combine with

Returns:

[this] || [right].

xor

@Nonnull
IJExpression xor(@Nonnull
                       IJExpression right)

Parameters:

right - value to combine with

Returns:

[this] ^ [right].

lt

@Nonnull
IJExpression lt(@Nonnull
                      IJExpression right)

Parameters:

right - value to compare to

Returns:

[this] < [right].

lt0

@Nonnull
IJExpression lt0()

Returns:

[this] < 0.

lte

@Nonnull
IJExpression lte(@Nonnull
                       IJExpression right)

Parameters:

right - value to compare to

Returns:

[this] <= [right].

lte0

@Nonnull
IJExpression lte0()

Returns:

[this] <= 0.

gt

@Nonnull
IJExpression gt(@Nonnull
                      IJExpression right)

Parameters:

right - value to compare to

Returns:

[this] > [right].

gt0

@Nonnull
IJExpression gt0()

Returns:

[this] > 0.

gte

@Nonnull
IJExpression gte(@Nonnull
                       IJExpression right)

Parameters:

right - value to compare to

Returns:

[this] >= [right].

gte0

@Nonnull
IJExpression gte0()

Returns:

[this] >= 0.

eq

@Nonnull
IJExpression eq(@Nonnull
                      IJExpression right)

Equals

Parameters:

right - expression to compare to

Returns:

expr == right

eqNull

@Nonnull
IJExpression eqNull()

Shortcut for eq (JExpr._null ())

Returns:

expr == null

eq0

@Nonnull
IJExpression eq0()

Shortcut for eq (JExpr.lit (0))

Returns:

expr == 0

ne

@Nonnull
IJExpression ne(@Nonnull
                      IJExpression right)

Not equals

Parameters:

right - expression to compare to

Returns:

expr != right

neNull

@Nonnull
IJExpression neNull()

Shortcut for ne (JExpr._null ())

Returns:

Never expr != null

ne0

@Nonnull
IJExpression ne0()

Shortcut for ne (JExpr.lit (0))

Returns:

Never expr != 0

_instanceof

@Nonnull
IJExpression _instanceof(@Nonnull
                               AbstractJType right)

Parameters:

right - type to check

Returns:

[this] instanceof [right].

invoke

@Nonnull
JInvocation invoke(@Nonnull
                         JMethod method)

Parameters:

method - Method to be invoked

Returns:

[this].[method]. Arguments shall be added to the returned JInvocation object.

invoke

@Nonnull
JInvocation invoke(@Nonnull
                         String method)

Parameters:

method - name of the method to invoke

Returns:

[this].[method]. Arguments shall be added to the returned JInvocation object.

ref

@Nonnull
JFieldRef ref(@Nonnull
                    JVar field)

ref

@Nonnull
JFieldRef ref(@Nonnull
                    String field)

component

@Nonnull
JArrayCompRef component(@Nonnull
                              IJExpression index)

Parameters:

index - array index

Returns:

[this] [ [index] ]

component

@Nonnull
JArrayCompRef component(int index)

Parameters:

index - array index

Returns:

[this] [ [index] ]

component0

@Nonnull
JArrayCompRef component0()

Returns:

[this] [0]