org.apache.openjpa.persistence.criteria
Class Expressions.Substring
java.lang.Object
org.apache.openjpa.persistence.criteria.SelectionImpl<X>
org.apache.openjpa.persistence.criteria.ExpressionImpl<X>
org.apache.openjpa.persistence.criteria.Expressions.UnaryFunctionalExpression<String>
org.apache.openjpa.persistence.criteria.Expressions.Substring
- All Implemented Interfaces:
- Expression<String>, Selection<String>, TupleElement<String>, CriteriaExpression
- Enclosing class:
- Expressions
public static class Expressions.Substring
- extends Expressions.UnaryFunctionalExpression<String>
Methods inherited from class org.apache.openjpa.persistence.criteria.SelectionImpl |
alias, asProjection, assertValidName, asVariable, getAlias, getCompoundSelectionItems, getJavaType, isAliased, isAutoAliased, isCompoundSelection, setAutoAlias |
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Expressions.Substring
public Expressions.Substring(Expression<String> s,
Expression<Integer> from,
Expression<Integer> len)
Expressions.Substring
public Expressions.Substring(Expression<String> s,
Expression<Integer> from)
Expressions.Substring
public Expressions.Substring(Expression<String> s)
Expressions.Substring
public Expressions.Substring(Expression<String> s,
Integer from)
Expressions.Substring
public Expressions.Substring(Expression<String> s,
Integer from,
Integer len)
toValue
public Value toValue(ExpressionFactory factory,
CriteriaQueryImpl<?> q)
- Description copied from class:
ExpressionImpl
- Bridge contract to convert this facade expression to a kernel value.
- Specified by:
toValue
in class ExpressionImpl<String>
- Parameters:
factory
- creates the kernel expressionq
- the query definition context of this expression
- Returns:
- an equivalent kernel value
acceptVisit
public void acceptVisit(CriteriaExpressionVisitor visitor)
- Description copied from interface:
CriteriaExpression
- Accept visit from the given visitor. The receiver is responsible
to propagate the visitor to the constituent sub-nodes if any.
- Specified by:
acceptVisit
in interface CriteriaExpression
- Overrides:
acceptVisit
in class Expressions.UnaryFunctionalExpression<String>
- Parameters:
visitor
- a processor to walk the nodes of a tree.
asValue
public StringBuilder asValue(AliasContext q)
- Description copied from interface:
CriteriaExpression
- Get a string representation of this node as a value in the context of the given query.
- Specified by:
asValue
in interface CriteriaExpression
- Overrides:
asValue
in class SelectionImpl<String>
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