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java.lang.Objectorg.eclipse.persistence.jpa.jpql.tools.model.query.AbstractStateObject
org.eclipse.persistence.jpa.jpql.tools.model.query.AbstractConditionalClauseStateObject
org.eclipse.persistence.jpa.jpql.tools.model.query.WhereClauseStateObject
public class WhereClauseStateObject
The WHERE clause of a query consists of a conditional expression used to
select objects or values that satisfy the expression. The WHERE clause
restricts the result of a select statement or the scope of an update or delete operation.
where_clause ::= WHERE conditional_expression
WhereClause| Field Summary |
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| Fields inherited from class org.eclipse.persistence.jpa.jpql.tools.model.query.AbstractConditionalClauseStateObject |
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CONDITIONAL_STATE_OBJECT_PROPERTY |
| Constructor Summary | |
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WhereClauseStateObject(AbstractModifyStatementStateObject parent)
Creates a new WhereClauseStateObject. |
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WhereClauseStateObject(AbstractSelectStatementStateObject parent)
Creates a new WhereClauseStateObject. |
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| Method Summary | |
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void |
accept(StateObjectVisitor visitor)
Visits this StateObject by the given visitor. |
WhereClause |
getExpression()
Returns the actual parsed object if this StateObject representation of the JPQL query
was created by parsing an existing JPQL query. |
java.lang.String |
getIdentifier()
Returns the JPQL identifier of this clause. |
void |
setExpression(WhereClause expression)
Keeps a reference of the parsed object object, which should only be done
when this object is instantiated during the conversion of a parsed JPQL query into StateObjects. |
| Methods inherited from class org.eclipse.persistence.jpa.jpql.tools.model.query.AbstractConditionalClauseStateObject |
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addChildren, andParse, getBuilder, getConditional, hasConditional, isEquivalent, orParse, parse, setConditional, shouldEncapsulateORExpression, toTextInternal |
| Methods inherited from class org.eclipse.persistence.jpa.jpql.tools.model.query.AbstractStateObject |
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acceptUnknownVisitor, acceptUnknownVisitor, addProblems, addPropertyChangeListener, areEquivalent, buildProblem, buildProblem, buildStateObject, buildStateObjects, checkParent, children, decorate, equals, findIdentificationVariable, firePropertyChanged, getChangeSupport, getDeclaration, getDecorator, getGrammar, getManagedTypeProvider, getParent, getQueryBuilder, getRoot, getType, getType, getTypeHelper, getTypeRepository, hashCode, initialize, isDecorated, parent, parent, parent, removePropertyChangeListener, setExpression, setParent, toString, toString, toStringInternal, toStringItems, toText |
| Methods inherited from class java.lang.Object |
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clone, finalize, getClass, notify, notifyAll, wait, wait, wait |
| Constructor Detail |
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public WhereClauseStateObject(AbstractModifyStatementStateObject parent)
WhereClauseStateObject.
parent - The parent of this state object, which cannot be null
java.lang.NullPointerException - The given parent cannot be nullpublic WhereClauseStateObject(AbstractSelectStatementStateObject parent)
WhereClauseStateObject.
parent - The parent of this state object, which cannot be null
java.lang.NullPointerException - The given parent cannot be null| Method Detail |
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public void accept(StateObjectVisitor visitor)
StateObject by the given visitor.
visitor - The visitor to visit this objectpublic WhereClause getExpression()
StateObject representation of the JPQL query
was created by parsing an existing JPQL query.
getExpression in interface StateObjectgetExpression in class AbstractStateObjectStateObject
or null when the JPQL query is manually created (i.e. not from a string)public java.lang.String getIdentifier()
getIdentifier in class AbstractConditionalClauseStateObjectpublic void setExpression(WhereClause expression)
parsed object object, which should only be done
when this object is instantiated during the conversion of a parsed JPQL query into StateObjects.
expression - The parsed object representing a Where
clause
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