com.saperion.database.query

Class QueryExpression<ExpressionType>

java.lang.Object

com.saperion.database.query.QueryExpression<ExpressionType>

All Implemented Interfaces:

Serializable

Direct Known Subclasses:

Conditions.SimpleConditionBuilder, LeafExpression, NodeExpression

public abstract class QueryExpression<ExpressionType>
extends Object
implements Serializable

This is the abstract super class for syntactical parts queries to the java core server.

Author:

jschwarz

See Also:

Serialized Form

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	QueryExpression(Class<ExpressionType> expressionType)

Method Summary

Modifier and Type	Method and Description
abstract void	accept(QueryExpressionVisitor visitor) This method invokes the appropriate callback of the given visitor and delegates it to its children if present.
Class<ExpressionType>	getExpressionType() This method returns the type of the expression.

Methods inherited from class java.lang.Object

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

Constructor Detail

QueryExpression

protected QueryExpression(Class<ExpressionType> expressionType)

Method Detail

getExpressionType

public Class<ExpressionType> getExpressionType()

This method returns the type of the expression. It a java class of the result evaluating the query would yield.

Returns:

the type of the expression

accept

public abstract void accept(QueryExpressionVisitor visitor)

This method invokes the appropriate callback of the given visitor and delegates it to its children if present.

Parameters:

visitor - the visitor visiting this expression