net.ajaest.jdk.data.dict.auxi
Class QueryExpression<E extends QAbout>
java.lang.Object
net.ajaest.jdk.data.dict.auxi.QAbout
net.ajaest.jdk.data.dict.auxi.QueryExpression<E>
- Type Parameters:
E
- class which is the beginning step in order to build a consistent
expression
- Direct Known Subclasses:
- KanjiExpression
public abstract class QueryExpression<E extends QAbout>
- extends QAbout
Class that represents a consistent and finished expression about related
fields. Using methods AND and OR will increase this kanji expression, but
this won't be consistent until the successive call of processes does not
returns a new kanji Expression.
Expressions can be used to define an object or a group of objects using
almost natural language, or to build a user friendly comprehensible query
about an object.
- Author:
- Luis Alfonso Arce González
Method Summary |
E |
AND()
Appends a new domain condition using boolean AND operator to this
expression. |
protected abstract E |
createBeginInstance()
Creates an instance of the objects which is the first step in order to
build a consistent expression. |
E |
OR()
Appends a new domain condition using boolean OR operator to this
expression. |
Methods inherited from class java.lang.Object |
clone, finalize, getClass, notify, notifyAll, wait, wait, wait |
QueryExpression
public QueryExpression()
QueryExpression
protected QueryExpression(java.util.List<ConnectorEnum> booleanConnector,
java.util.List<QAbout> domains)
AND
public E AND()
- Appends a new domain condition using boolean AND operator to this
expression.
- Returns:
- an object inheriting
QAbout
representing the beginning
step in order to append a domain condition to this expression.
OR
public E OR()
- Appends a new domain condition using boolean OR operator to this
expression.
- Returns:
- an object inheriting
QAbout
representing the beginning
step in order to append a domain condition to this expression.
createBeginInstance
protected abstract E createBeginInstance()
- Creates an instance of the objects which is the first step in order to
build a consistent expression.
- Returns:
- An object of the class that represents the first step in order to
build a consistent expression