Package org.apache.cayenne.exp.parser

Class ASTObjPath

java.lang.Object

org.apache.cayenne.exp.Expression

org.apache.cayenne.exp.parser.SimpleNode

org.apache.cayenne.exp.parser.ASTPath

org.apache.cayenne.exp.parser.ASTObjPath

All Implemented Interfaces:

Serializable, Node, XMLSerializable

public class ASTObjPath
extends ASTPath

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field	Description
static String	OBJ_PREFIX

Fields inherited from class org.apache.cayenne.exp.parser.ASTPath

path, pathAliases

Fields inherited from class org.apache.cayenne.exp.parser.SimpleNode

children, id, parent

Fields inherited from class org.apache.cayenne.exp.Expression

ADD, AND, ASTERISK, BETWEEN, BITWISE_AND, BITWISE_LEFT_SHIFT, BITWISE_NOT, BITWISE_OR, BITWISE_RIGHT_SHIFT, BITWISE_XOR, CUSTOM_OP, DB_PATH, DBID_PATH, DIVIDE, 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, SUBQUERY, SUBTRACT, TRUE, type

Constructor Summary

Constructors

Constructor	Description
ASTObjPath()
ASTObjPath(Object value)

Method Summary

Modifier and Type	Method	Description
void	appendAsEJBQL(List<Object> parameterAccumulator, Appendable out, String rootId)	Stores a String representation of Expression as EJBQL using a provided PrintWriter.
void	appendAsString(Appendable out)	Appends own content as a String to the provided Appendable.
protected Object	evaluateNode(Object o)	Evaluates itself with object, pushing result on the stack.
int	getType()	Returns a type of expression.
Expression	shallowCopy()	Creates a copy of this expression node, without copying children.

Methods inherited from class org.apache.cayenne.exp.parser.ASTPath

evaluateEntityNode, getExpressionOperator, getOperand, getOperandCount, getPath, getPathAliases, hashCode, setOperand, setPath, setPathAliases

Methods inherited from class org.apache.cayenne.exp.parser.SimpleNode

appendAsEJBQL, appendAsEscapedString, appendChildrenAsEJBQL, appendScalarAsString, connectChildren, encodeScalarAsEJBQL, evaluate, evaluateChild, expName, flattenTree, getEJBQLExpressionOperator, jjtAddChild, jjtClose, jjtGetChild, jjtGetNumChildren, jjtGetParent, jjtOpen, jjtSetParent, notExp, pruneNodeForPrunedChild, unwrapChild, wrapChild

Methods inherited from class org.apache.cayenne.exp.Expression

andExp, andExp, deepCopy, encodeAsXML, equals, filter, filterObjects, first, joinExp, joinExp, match, orExp, orExp, params, params, paramsArray, setType, toEJBQL, toEJBQL, toString, transform, transformExpression, traverse, traverse

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

OBJ_PREFIX

public static final String OBJ_PREFIX

See Also:

Constant Field Values

Constructor Detail

ASTObjPath

public ASTObjPath()

ASTObjPath

public ASTObjPath(Object value)

Method Detail

evaluateNode

protected Object evaluateNode(Object o)
                       throws Exception

Description copied from class: SimpleNode

Evaluates itself with object, pushing result on the stack.

Specified by:

evaluateNode in class SimpleNode

Throws:

Exception

shallowCopy

public Expression shallowCopy()

Creates a copy of this expression node, without copying children.

Specified by:

shallowCopy in class Expression

appendAsEJBQL

public void appendAsEJBQL(List<Object> parameterAccumulator,
                          Appendable out,
                          String rootId)
                   throws IOException

Description copied from class: Expression

Stores 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:

appendAsEJBQL in class SimpleNode

Throws:

IOException

Since:

4.0

appendAsString

public void appendAsString(Appendable out)
                    throws IOException

Description copied from class: Expression

Appends own content as a String to the provided Appendable.

Overrides:

appendAsString in class SimpleNode

Throws:

IOException

Since:

4.0

getType

public int getType()

Description copied from class: Expression

Returns a type of expression. Most common types are defined as public static fields of this interface.

Overrides:

getType in class Expression