Class SubqueryExp

java.lang.Object

org.apache.cayenne.exp.Expression

org.apache.cayenne.exp.SubqueryExp

All Implemented Interfaces:

XMLSerializable

public final class SubqueryExp
extends Expression

Since:

5.0

Field Summary

Fields inherited from class Expression

operands, PRUNED_NODE

Constructor Summary

Constructors

Constructor	Description
SubqueryExp(Object... operands)	Creates a subquery node wrapping the given select, or an empty one without arguments.

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.
FluentSelect<?,?>	getQuery()
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, getOperandCount, 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

SubqueryExp

public SubqueryExp(Object... operands)

Creates a subquery node wrapping the given select, or an empty one without arguments.

Method Details

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

evaluateNode

protected Object evaluateNode(Object o)

Description copied from class: Expression

Evaluates itself with object, pushing result on the stack.

Specified by:

evaluateNode in class Expression

shallowCopy

public Expression shallowCopy()

Description copied from class: Expression

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

Specified by:

shallowCopy in class Expression

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

getQuery

public FluentSelect<?,?> getQuery()

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