| AndConstraint | AndConstraintimplements an AND constraint.
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| ChildNodeConstraint | ChildNodeConstraintimplements a child node constraint.
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| ComparisonConstraint | ComparisonConstraintimplements a comparison constraint.
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| ConstraintBuilder | ConstraintBuilder builds a  Constraint from a tree of
 QOM constraints. | 
| DescendantNodeConstraint | DescendantNodeConstraintimplements a descendant node
 constraint.
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| DynamicOperand | DynamicOperandis a base class for dynamic operands.
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| FullTextConstraint | FullTextConstraintimplements a full text search constraint.
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| FullTextSearchScoreOperand | FullTextSearchScoreOperandimplements a full text search score
 operand.
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| HierarchyConstraint | HierarchyConstraintis a base class for hierarchy related
 constraints.
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| LengthOperand | LengthOperandimplements a length operand.
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| LikeConstraint | LikeConstraintimplements a like constraint.
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| LowerCaseOperand | LowerCaseOperandimplements a lower case operand.
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| NodeLocalNameOperand | NodeLocalNameOperandimplements a node local name operand.
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| NodeNameOperand | NodeNameOperandimplements a node name operand.
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| NotConstraint | NotConstraintimplements a NOT constraint.
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| OrConstraint | OrConstraintimplements an OR constraint.
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| PropertyExistenceConstraint | PropertyExistenceConstraintimplements a property existence
 constraint.
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| PropertyValueOperand | PropertyValueOperandimplements a property value operand.
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| QueryConstraint | QueryConstraintimplements a constraint that is based on a
 lucene query.
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| SameNodeConstraint | SameNodeConstraintimplements a same node constraint.
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| SelectorBasedConstraint | SelectorBasedConstraintimplements a constraint that is based
 on a named selector.
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| UpperCaseOperand | UpperCaseOperandimplements an upper case operand.
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