Class ExtractionUtils
- java.lang.Object
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- org.eclipse.mat.internal.collectionextract.ExtractionUtils
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public class ExtractionUtils extends java.lang.Object
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Constructor Summary
Constructors Constructor Description ExtractionUtils()
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Method Summary
All Methods Static Methods Concrete Methods Modifier and Type Method Description static IInstance
followOnlyNonArrayOutgoingReference(IObject obj)
Get the only non-array object field from the object.static IObject
followOnlyOutgoingReferencesExceptLast(java.lang.String field, IObject obj)
Walks the only non-array object field from the object, stopping at the second-last.static int
getNumberOfNotNullArrayElements(int[] ids)
static int
getNumberOfNotNullArrayElements(long[] addresses)
static int
getNumberOfNotNullArrayElements(IObjectArray arrayObject)
static IObjectArray
getOnlyArrayField(IObject obj)
Get the only array field from the object.static int[]
referenceArrayToIds(ISnapshot snapshot, long[] referenceArray)
static JdkVersion
resolveVersion(ISnapshot snapshot)
static java.lang.Integer
toInteger(java.lang.Object i)
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Method Detail
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toInteger
public static java.lang.Integer toInteger(java.lang.Object i)
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getNumberOfNotNullArrayElements
public static int getNumberOfNotNullArrayElements(IObjectArray arrayObject)
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getNumberOfNotNullArrayElements
public static int getNumberOfNotNullArrayElements(long[] addresses)
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getNumberOfNotNullArrayElements
public static int getNumberOfNotNullArrayElements(int[] ids)
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referenceArrayToIds
public static int[] referenceArrayToIds(ISnapshot snapshot, long[] referenceArray) throws SnapshotException
- Throws:
SnapshotException
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followOnlyNonArrayOutgoingReference
public static IInstance followOnlyNonArrayOutgoingReference(IObject obj) throws SnapshotException
Get the only non-array object field from the object. For example used for finding the HashMap from the HashSet- Parameters:
obj
-- Returns:
- null if no non-array, or duplicates found
- Throws:
SnapshotException
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followOnlyOutgoingReferencesExceptLast
public static IObject followOnlyOutgoingReferencesExceptLast(java.lang.String field, IObject obj) throws SnapshotException
Walks the only non-array object field from the object, stopping at the second-last.- Parameters:
obj
-- Returns:
- null if no non-array, or duplicates found
- Throws:
SnapshotException
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getOnlyArrayField
public static IObjectArray getOnlyArrayField(IObject obj) throws SnapshotException
Get the only array field from the object.- Parameters:
obj
-- Returns:
- null if no non-array, or duplicates found
- Throws:
SnapshotException
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resolveVersion
public static JdkVersion resolveVersion(ISnapshot snapshot) throws SnapshotException
- Throws:
SnapshotException
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