Package org.apache.cayenne.exp.parser
Class AggregateConditionNode
java.lang.Object
org.apache.cayenne.exp.Expression
org.apache.cayenne.exp.parser.SimpleNode
org.apache.cayenne.exp.parser.AggregateConditionNode
- All Implemented Interfaces:
Serializable
,Node
,XMLSerializable
Superclass of aggregated conditional nodes such as NOT, AND, OR. Performs
extra checks on parent and child expressions to validate conditions that are
not addressed in the Cayenne expressions grammar.
- Since:
- 1.1
- See Also:
-
Field Summary
Fields inherited from class org.apache.cayenne.exp.parser.SimpleNode
children, id, parent
Fields inherited from class org.apache.cayenne.exp.Expression
ADD, ALL, AND, ANY, ASTERISK, BETWEEN, BITWISE_AND, BITWISE_LEFT_SHIFT, BITWISE_NOT, BITWISE_OR, BITWISE_RIGHT_SHIFT, BITWISE_XOR, CASE_WHEN, CUSTOM_OP, DB_PATH, DBID_PATH, DIVIDE, ELSE, ENCLOSING_OBJECT, EQUAL_TO, EXISTS, FALSE, FULL_OBJECT, FUNCTION_CALL, GREATER_THAN, GREATER_THAN_EQUAL_TO, IN, LESS_THAN, LESS_THAN_EQUAL_TO, LIKE, LIKE_IGNORE_CASE, LIST, MULTIPLY, NEGATIVE, NOT, NOT_BETWEEN, NOT_EQUAL_TO, NOT_EXISTS, NOT_IN, NOT_LIKE, NOT_LIKE_IGNORE_CASE, OBJ_PATH, OR, PRUNED_NODE, SCALAR, SUBQUERY, SUBTRACT, THEN, TRUE, type, WHEN
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Method Summary
Modifier and TypeMethodDescriptionexists()
Returns expression that will be dynamically resolved to proper subqueries based on a relationships used (if no relationships are present in the original expression no subqueries will be used).protected boolean
Additional parent check that we can't handle properly in the grammar By default it just returns true.void
jjtAddChild
(Node n, int i) This method tells the node to add its argument to the node's list of children.Returns expression that will be dynamically resolved to proper subqueries based on a relationships used (if no relationships are present in the original expression no subqueries will be used).protected boolean
pruneNodeForPrunedChild
(Object prunedChild) Returns true if this node should be pruned from expression tree in the event a child is removed.protected Object
transformExpression
(Function<Object, Object> transformer) A recursive method called from "transform" to do the actual transformation.Methods inherited from class org.apache.cayenne.exp.parser.SimpleNode
appendAsEJBQL, appendAsEJBQL, appendAsEscapedString, appendAsString, appendChildrenAsEJBQL, appendScalarAsString, connectChildren, encodeScalarAsEJBQL, evaluate, evaluateChild, evaluateNode, expName, flattenTree, getEJBQLExpressionOperator, getExpressionOperator, getOperand, getOperandCount, getPathAliases, jjtClose, jjtGetChild, jjtGetNumChildren, jjtGetParent, jjtOpen, jjtSetParent, notExp, setOperand, unwrapChild, wrapChild
Methods inherited from class org.apache.cayenne.exp.Expression
andExp, andExp, deepCopy, encodeAsXML, equals, filter, filterObjects, first, getType, hashCode, joinExp, joinExp, match, orExp, orExp, params, params, paramsArray, setType, shallowCopy, toEJBQL, toEJBQL, toString, transform, traverse, traverse
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Method Details
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pruneNodeForPrunedChild
Description copied from class:Expression
Returns true if this node should be pruned from expression tree in the event a child is removed.- Overrides:
pruneNodeForPrunedChild
in classSimpleNode
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transformExpression
Description copied from class:Expression
A recursive method called from "transform" to do the actual transformation.- Overrides:
transformExpression
in classExpression
- Returns:
- null, Expression.PRUNED_NODE or transformed expression.
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isValidParent
Description copied from class:SimpleNode
Additional parent check that we can't handle properly in the grammar By default it just returns true.- Overrides:
isValidParent
in classSimpleNode
- Parameters:
n
- potential parent node to check- Returns:
- true if node could be set as a parent for the current node
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jjtAddChild
Description copied from interface:Node
This method tells the node to add its argument to the node's list of children.- Specified by:
jjtAddChild
in interfaceNode
- Overrides:
jjtAddChild
in classSimpleNode
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exists
Description copied from class:Expression
Returns expression that will be dynamically resolved to proper subqueries based on a relationships used (if no relationships are present in the original expression no subqueries will be used).- Overrides:
exists
in classSimpleNode
- Returns:
- exists expression
- See Also:
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notExists
Description copied from class:Expression
Returns expression that will be dynamically resolved to proper subqueries based on a relationships used (if no relationships are present in the original expression no subqueries will be used).- Overrides:
notExists
in classSimpleNode
- Returns:
- not exists expression
- See Also:
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