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EclipseLink 2.4.2, build 'v20130514-5956486' API Reference | ||||||||
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java.lang.Objectorg.eclipse.persistence.jpa.jpql.model.query.AbstractStateObject
org.eclipse.persistence.jpa.jpql.model.query.AbstractModifyStatementStateObject
org.eclipse.persistence.jpa.jpql.model.query.UpdateStatementStateObject
public class UpdateStatementStateObject
The UPDATE
clause of a query consists of a conditional expression used to
select objects or values that satisfy the expression. The UPDATE
clause
restricts the result of a select statement or the scope of an update operation.
update_statement ::= update_clause [where_clause]
UpdateStatement
Field Summary |
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Fields inherited from class org.eclipse.persistence.jpa.jpql.model.query.AbstractModifyStatementStateObject |
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WHERE_CLAUSE_PROPERTY |
Constructor Summary | |
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UpdateStatementStateObject(JPQLQueryStateObject parent)
Creates a new UpdateStatementStateObject . |
Method Summary | |
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void |
accept(StateObjectVisitor visitor)
Visits this StateObject by the given visitor . |
UpdateItemStateObject |
addItem(java.lang.String path)
Adds a new item to the UPDATE clause. |
UpdateItemStateObject |
addItem(java.lang.String path,
StateObject newValue)
Adds a new item to the UPDATE clause. |
UpdateItemStateObject |
addItem(java.lang.String path,
java.lang.String newValue)
Adds a new item to the UPDATE clause. |
protected AbstractModifyClauseStateObject |
buildModifyClause()
Creates the actual AbstractModifyClauseStateObject that represents the modify clause. |
UpdateStatement |
getExpression()
Returns the actual parsed object if this StateObject representation of the JPQL query
was created by parsing an existing JPQL query. |
UpdateClauseStateObject |
getModifyClause()
Returns the state object representing the UPDATE clause. |
void |
setExpression(UpdateStatement 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.model.query.AbstractModifyStatementStateObject |
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addChildren, addWhereClause, getAbstractSchemaName, getAbstractSchemaNameStateObject, getDeclaration, getEntity, getIdentificationVariable, getIdentificationVariableStateObject, getParent, getRangeVariableDeclaration, getWhereClause, hasWhereClause, initialize, isEquivalent, removeWhereClause, setConditionalStateObject, setDeclaration, setDeclaration, setDeclaration, setDeclaration, setEntity, setEntityName, setIdentificationVariable, toggleWhereClause, toTextInternal |
Methods inherited from class org.eclipse.persistence.jpa.jpql.model.query.AbstractStateObject |
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acceptUnknownVisitor, acceptUnknownVisitor, addProblems, addPropertyChangeListener, areEquivalent, buildProblem, buildProblem, buildStateObject, buildStateObjects, checkParent, children, decorate, equals, findIdentificationVariable, firePropertyChanged, getChangeSupport, getDecorator, getGrammar, getManagedTypeProvider, getQueryBuilder, getRoot, getType, getType, getTypeHelper, getTypeRepository, hashCode, 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 UpdateStatementStateObject(JPQLQueryStateObject parent)
UpdateStatementStateObject
.
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 UpdateItemStateObject addItem(java.lang.String path)
UPDATE
clause.
path
- The path of the value to update
UpdateItemStateObject
public UpdateItemStateObject addItem(java.lang.String path, StateObject newValue)
UPDATE
clause.
path
- The path of the value to updatenewValue
- The StateObject
representation of the new value
UpdateItemStateObject
public UpdateItemStateObject addItem(java.lang.String path, java.lang.String newValue)
UPDATE
clause.
path
- The path of the value to updatenewValue
- The string representation of the new value to parse and to convert into a
StateObject
representation
UpdateItemStateObject
protected AbstractModifyClauseStateObject buildModifyClause()
AbstractModifyClauseStateObject
that represents the modify clause.
buildModifyClause
in class AbstractModifyStatementStateObject
public UpdateStatement getExpression()
StateObject
representation of the JPQL query
was created by parsing an existing JPQL query.
getExpression
in interface StateObject
getExpression
in class AbstractStateObject
StateObject
or null
when the JPQL query is manually created (i.e. not from a string)public UpdateClauseStateObject getModifyClause()
UPDATE
clause.
getModifyClause
in class AbstractModifyStatementStateObject
UPDATE
clause, which is never
null
public void setExpression(UpdateStatement 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 an UpdateStatement
statement
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EclipseLink 2.4.2, build 'v20130514-5956486' API Reference | ||||||||
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