com.querydsl.core.types

Class HashCodeVisitor

java.lang.Object

com.querydsl.core.types.HashCodeVisitor

All Implemented Interfaces:

Visitor<java.lang.Integer,java.lang.Void>

public final class HashCodeVisitor
extends java.lang.Object
implements Visitor<java.lang.Integer,java.lang.Void>

HashCodeVisitor is used for hashCode generation in Expression implementations.

Author:

tiwe

Field Summary

Fields

Modifier and Type	Field and Description
static HashCodeVisitor	DEFAULT

Method Summary

Modifier and Type	Method and Description
java.lang.Integer	visit(Constant<?> expr, java.lang.Void context) Visit a Constant instance with the given context
java.lang.Integer	visit(FactoryExpression<?> expr, java.lang.Void context) Visit a FactoryExpression instance with the given context
java.lang.Integer	visit(Operation<?> expr, java.lang.Void context) Visit an Operation instance with the given context
java.lang.Integer	visit(ParamExpression<?> expr, java.lang.Void context) Visit a ParamExpression instance with the given context
java.lang.Integer	visit(Path<?> expr, java.lang.Void context) Visit a Path instance with the given context
java.lang.Integer	visit(SubQueryExpression<?> expr, java.lang.Void context) Visit a SubQueryExpression instance with the given context
java.lang.Integer	visit(TemplateExpression<?> expr, java.lang.Void context) Visit a TemplateExpression instance with the given context

Methods inherited from class java.lang.Object

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

Field Detail

DEFAULT

public static final HashCodeVisitor DEFAULT

Method Detail

visit

public java.lang.Integer visit(Constant<?> expr,
                               java.lang.Void context)

Description copied from interface: Visitor

Visit a Constant instance with the given context

Specified by:

visit in interface Visitor<java.lang.Integer,java.lang.Void>

Parameters:

expr - expression to visit

context - context of the visit or null, if not used

Returns:

visit result

visit

public java.lang.Integer visit(FactoryExpression<?> expr,
                               java.lang.Void context)

Description copied from interface: Visitor

Visit a FactoryExpression instance with the given context

Specified by:

visit in interface Visitor<java.lang.Integer,java.lang.Void>

Parameters:

expr - expression to visit

context - context of the visit or null, if not used

Returns:

visit result

visit

public java.lang.Integer visit(Operation<?> expr,
                               java.lang.Void context)

Description copied from interface: Visitor

Visit an Operation instance with the given context

Specified by:

visit in interface Visitor<java.lang.Integer,java.lang.Void>

Parameters:

expr - expression to visit

context - context of the visit or null, if not used

Returns:

visit result

visit

public java.lang.Integer visit(ParamExpression<?> expr,
                               java.lang.Void context)

Description copied from interface: Visitor

Visit a ParamExpression instance with the given context

Specified by:

visit in interface Visitor<java.lang.Integer,java.lang.Void>

Parameters:

expr - expression to visit

context - context of the visit or null, if not used

Returns:

visit result

visit

public java.lang.Integer visit(Path<?> expr,
                               java.lang.Void context)

Description copied from interface: Visitor

Visit a Path instance with the given context

Specified by:

visit in interface Visitor<java.lang.Integer,java.lang.Void>

Parameters:

expr - expression to visit

context - context of the visit or null, if not used

Returns:

visit result

visit

public java.lang.Integer visit(SubQueryExpression<?> expr,
                               java.lang.Void context)

Description copied from interface: Visitor

Visit a SubQueryExpression instance with the given context

Specified by:

visit in interface Visitor<java.lang.Integer,java.lang.Void>

Parameters:

expr - expression to visit

context - context of the visit or null, if not used

Returns:

visit result

visit

public java.lang.Integer visit(TemplateExpression<?> expr,
                               java.lang.Void context)

Description copied from interface: Visitor

Visit a TemplateExpression instance with the given context

Specified by:

visit in interface Visitor<java.lang.Integer,java.lang.Void>

Parameters:

expr - expression to visit

context - context of the visit or null, if not used

Returns:

visit result