Class NegateExp

java.lang.Object

org.apache.cayenne.exp.Expression

org.apache.cayenne.exp.NegateExp

All Implemented Interfaces:

XMLSerializable

public final class NegateExp
extends Expression

"Negate" expression.

Since:

5.0

Field Summary

Fields inherited from class Expression

operands, PRUNED_NODE

Constructor Summary

Constructors

Constructor	Description
NegateExp(Object... operands)

Method Summary

Modifier and Type	Method	Description
void	appendAsString(Appendable out)	Appends own content as a String to the provided Appendable: the operands separated by the operator.
protected Object	evaluateNode(Object o)	Evaluates itself with object, pushing result on the stack.
protected String	getExpressionOperator(int index)	Returns the operator printed between the operands, before the operand at the given index.
int	getOperandCount()	Returns a count of operands of this expression.
protected boolean	parenthesizeAsOperand()	Whether this node is wrapped in parentheses when printed as an operand of another node.
Expression	shallowCopy()	Creates a copy of this expression node, without copying children.

Methods inherited from class Expression

andExp, andExp, appendOperandAsString, deepCopy, encodeAsXML, equals, evaluate, evaluateOperand, exists, expName, filter, filterObjects, first, flattenTree, getOperand, getPathAliases, hashCode, isValidParent, match, notExists, notExp, orExp, orExp, params, params, paramsArray, pruneNodeForPrunedChild, setOperand, setOperands, toString, transform, transformExpression, traverse, traverse

Methods inherited from class Object

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

Constructor Details

NegateExp

public NegateExp(Object... operands)

Method Details

shallowCopy

public Expression shallowCopy()

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

Specified by:

shallowCopy in class Expression

evaluateNode

protected Object evaluateNode(Object o)
                       throws Exception

Description copied from class: Expression

Evaluates itself with object, pushing result on the stack.

Specified by:

evaluateNode in class Expression

Throws:

Exception

appendAsString

public void appendAsString(Appendable out)
                    throws IOException

Description copied from class: Expression

Appends own content as a String to the provided Appendable: the operands separated by the operator.

Overrides:

appendAsString in class Expression

Throws:

IOException

getExpressionOperator

protected String getExpressionOperator(int index)

Description copied from class: Expression

Returns the operator printed between the operands, before the operand at the given index.

Specified by:

getExpressionOperator in class Expression

getOperandCount

public int getOperandCount()

Description copied from class: Expression

Returns a count of operands of this expression. In real life there are unary (count == 1), binary (count == 2) and ternary (count == 3) expressions.

Overrides:

getOperandCount in class Expression

parenthesizeAsOperand

protected boolean parenthesizeAsOperand()

Description copied from class: Expression

Whether this node is wrapped in parentheses when printed as an operand of another node. Compound nodes are, leaves and nodes with their own delimiters (function calls, lists) are not.

Overrides:

parenthesizeAsOperand in class Expression