InternalExpression

All Known Implementing Classes:

BasicCollectionJoinImpl, BasicListJoinImpl, BasicMapJoinImpl, BasicSetJoinImpl, CollectionJoinImpl, CompoundExpressionImpl, CriteriaBuilderImpl.CaseImpl, CriteriaBuilderImpl.CoalesceImpl, CriteriaBuilderImpl.SimpleCaseImpl, ExpressionImpl, FromImpl, FunctionExpressionImpl, InImpl, JoinImpl, ListJoinImpl, MapJoinImpl, ParameterExpressionImpl, PathImpl, PredicateImpl, RootImpl, SetJoinImpl, SubQueryImpl
```
public interface InternalExpression
```
Purpose: Represents an Expression in the Criteria API implementation heirarchy.
Description: Expressions are expression nodes that can not be joined from and may or not be the result of a Path expression. The SubQuery is a special type of expression that requires certain methods but can not extend ExpressionImpl. This interface provide a common API.

Since:

EclipseLink 1.2

Author:

gyorke

See Also:

Expression

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`boolean`	`isCompoundExpression()`
`boolean`	`isExpression()`
`boolean`	`isJunction()`
`boolean`	`isLiteral()`
`boolean`	`isParameter()`
`boolean`	`isPredicate()`
`boolean`	`isSubquery()`

Method Detail

isPredicate
```
boolean isPredicate()
```

isCompoundExpression
```
boolean isCompoundExpression()
```

isExpression
```
boolean isExpression()
```

isLiteral
```
boolean isLiteral()
```

isParameter
```
boolean isParameter()
```

isSubquery
```
boolean isSubquery()
```

isJunction
```
boolean isJunction()
```