Package org.apache.cayenne.exp.parser

Class ASTEqual

java.lang.Object

org.apache.cayenne.exp.Expression

org.apache.cayenne.exp.parser.SimpleNode

org.apache.cayenne.exp.parser.ConditionNode

org.apache.cayenne.exp.parser.ASTEqual

All Implemented Interfaces:

Serializable, Node, ValueInjector, XMLSerializable

public class ASTEqual
extends ConditionNode
implements ValueInjector

"Equal To" expression.

Since:

1.1

See Also:

Serialized Form

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, 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
ASTEqual()
ASTEqual(SimpleNode path, Object value)	Creates "Equal To" expression.

Method Summary

Modifier and Type	Method	Description
protected Boolean	evaluateSubNode(Object o, Object[] evaluatedChildren)
protected String	getEJBQLExpressionOperator(int index)	Returns operator for EJBQL statements, which can differ for Cayenne expression operator
protected String	getExpressionOperator(int index)
protected int	getRequiredChildrenCount()
int	getType()	Returns a type of expression.
void	injectValue(Object o)
Expression	shallowCopy()	Creates a copy of this expression node, without copying children.

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

evaluateNode, jjtSetParent

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

appendAsEJBQL, appendAsEJBQL, appendAsEscapedString, appendAsString, appendChildrenAsEJBQL, appendScalarAsString, connectChildren, encodeScalarAsEJBQL, evaluate, evaluateChild, expName, flattenTree, getOperand, getOperandCount, getPathAliases, jjtAddChild, jjtClose, jjtGetChild, jjtGetNumChildren, jjtGetParent, jjtOpen, notExp, pruneNodeForPrunedChild, setOperand, unwrapChild, wrapChild

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

andExp, andExp, deepCopy, encodeAsXML, equals, filter, filterObjects, first, hashCode, 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

Constructor Detail

ASTEqual

public ASTEqual()

ASTEqual

public ASTEqual(SimpleNode path,
                Object value)

Creates "Equal To" expression.

Method Detail

getRequiredChildrenCount

protected int getRequiredChildrenCount()

Specified by:

getRequiredChildrenCount in class ConditionNode

evaluateSubNode

protected Boolean evaluateSubNode(Object o,
                                  Object[] evaluatedChildren)
                           throws Exception

Specified by:

evaluateSubNode in class ConditionNode

Throws:

Exception

shallowCopy

public Expression shallowCopy()

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

Specified by:

shallowCopy in class Expression

getExpressionOperator

protected String getExpressionOperator(int index)

Specified by:

getExpressionOperator in class SimpleNode

getEJBQLExpressionOperator

protected String getEJBQLExpressionOperator(int index)

Description copied from class: SimpleNode

Returns operator for EJBQL statements, which can differ for Cayenne expression operator

Overrides:

getEJBQLExpressionOperator in class SimpleNode

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

injectValue

public void injectValue(Object o)

Specified by:

injectValue in interface ValueInjector