com.redhat.lightblue.query

Class FieldBinding

java.lang.Object

com.redhat.lightblue.query.FieldBinding

All Implemented Interfaces:

Serializable

Direct Known Subclasses:

ListBinding, ValueBinding

public abstract class FieldBinding
extends Object
implements Serializable

Base class for a bound value. The bound value cam be a primitive (BoundValue) or a list (BoundValueList). When a field is bound to a value, that query clause is replaced with another one containing a BoundValue or BoundValueList. The FieldBinding for this instance keeps the field path, the value it is bound to, the original query expression (originalQuery), and the new query expression containing the bound value (boundQuery). For instance, consider the following expression:

 
  { "field":"field1","op":"=","rfield":"field2" }
 

When field1 is bound to a value, the FieldBinding is:

 field: field1 originalQuery: {
 "field":"field1","op":"=","rfield":"field2" } boundQuery:
 {"field":"field2","op":"=","rvalue": } value:  

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
FieldBinding(Path field, QueryExpression originalQ, QueryExpression boundQ)

Method Summary

Methods

Modifier and Type	Method and Description
QueryExpression	getBoundQuery() Returns the rewritten query object containing the bound value
Path	getField() Returns the field bound to a value.
QueryExpression	getOriginalQuery() Returns the original query object

Methods inherited from class java.lang.Object

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

Constructor Detail

FieldBinding

public FieldBinding(Path field,
            QueryExpression originalQ,
            QueryExpression boundQ)

Method Detail

getField

public Path getField()

Returns the field bound to a value.

getOriginalQuery

public QueryExpression getOriginalQuery()

Returns the original query object

getBoundQuery

public QueryExpression getBoundQuery()

Returns the rewritten query object containing the bound value