Package org.apache.cayenne.exp.parser
Class ASTEnum
java.lang.Object
org.apache.cayenne.exp.Expression
org.apache.cayenne.exp.parser.SimpleNode
org.apache.cayenne.exp.parser.ASTScalar
org.apache.cayenne.exp.parser.ASTEnum
- All Implemented Interfaces:
- Serializable,- Node,- XMLSerializable
public class ASTEnum extends ASTScalar
Scalar node that represents constant enumeration value.
 It resolves actual value at a late stage to be parsable in environment where
 final Enum class is not known, i.e. in Modeler.
- Since:
- 4.1
- See Also:
- Serialized Form
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Field SummaryFields inherited from class org.apache.cayenne.exp.parser.SimpleNodechildren, id, parentFields inherited from class org.apache.cayenne.exp.ExpressionADD, AND, ASTERISK, BETWEEN, BITWISE_AND, BITWISE_LEFT_SHIFT, BITWISE_NOT, BITWISE_OR, BITWISE_RIGHT_SHIFT, BITWISE_XOR, DB_PATH, DIVIDE, EQUAL_TO, 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_IN, NOT_LIKE, NOT_LIKE_IGNORE_CASE, OBJ_PATH, OR, PRUNED_NODE, SUBTRACT, TRUE, type
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Constructor Summary
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Method SummaryModifier and Type Method Description voidappendAsEJBQL(List<Object> parameterAccumulator, Appendable out, String rootId)Stores a String representation of Expression as EJBQL using a provided PrintWriter.protected ObjectevaluateNode(Object o)Evaluates itself with object, pushing result on the stack.ObjectgetValue()voidsetEnumValue(String enumPath)ExpressionshallowCopy()Creates a copy of this expression node, without copying children.Methods inherited from class org.apache.cayenne.exp.parser.ASTScalarappendAsString, equals, getExpressionOperator, hashCode, setValueMethods inherited from class org.apache.cayenne.exp.parser.SimpleNodeappendAsEJBQL, appendAsEscapedString, appendChildrenAsEJBQL, appendScalarAsString, connectChildren, encodeScalarAsEJBQL, evaluate, evaluateChild, expName, flattenTree, getEJBQLExpressionOperator, getOperand, getOperandCount, getPathAliases, jjtAddChild, jjtClose, jjtGetChild, jjtGetNumChildren, jjtGetParent, jjtOpen, jjtSetParent, notExp, pruneNodeForPrunedChild, setOperand, unwrapChild, wrapChildMethods inherited from class org.apache.cayenne.exp.ExpressionandExp, andExp, deepCopy, encodeAsXML, filter, filterObjects, first, getType, joinExp, joinExp, match, orExp, orExp, params, params, paramsArray, setType, toEJBQL, toEJBQL, toString, transform, transformExpression, traverse, traverse
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Constructor Details- 
ASTEnumpublic ASTEnum()
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ASTEnum
 
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Method Details- 
evaluateNodeDescription copied from class:SimpleNodeEvaluates itself with object, pushing result on the stack.- Overrides:
- evaluateNodein class- ASTScalar
 
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shallowCopyDescription copied from class:ASTScalarCreates a copy of this expression node, without copying children.- Overrides:
- shallowCopyin class- ASTScalar
 
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appendAsEJBQLpublic void appendAsEJBQL(List<Object> parameterAccumulator, Appendable out, String rootId) throws IOExceptionDescription copied from class:ExpressionStores a String representation of Expression as EJBQL using a provided PrintWriter. DB path expressions produce non-standard EJBQL path expressions. If the parameterAccumulator is supplied then as the EJBQL is output, it may load parameters into this list. In this case, the EJBQL output will contain reference to positional parameters. If no parameterAccumulator is supplied and a scalar type is encountered for which there is no EJBQL literal representation (such as dates) then this method will throw a runtime exception to indicate that it was not possible to generate a string-only representation of the Expression in EJBQL.- Overrides:
- appendAsEJBQLin class- ASTScalar
- Throws:
- IOException
 
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getValue
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setEnumValue- Throws:
- ParseException
 
 
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