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Oracle® Fusion Middleware Java API Reference for Oracle Coherence 12c (12.1.3.0.0) E47890-01 |
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java.lang.Object
com.tangosol.util.Base
com.tangosol.util.BitHelper
com.tangosol.util.ExternalizableHelper
com.tangosol.util.extractor.AbstractExtractor
com.tangosol.util.extractor.IdentityExtractor
public class IdentityExtractor
Trivial ValueExtractor implementation that does not actually extract anything from the passed value, but returns the value itself.
Field Summary | |
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static IdentityExtractor |
INSTANCE An instance of the IdentityExtractor. |
Fields inherited from class com.tangosol.util.extractor.AbstractExtractor |
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KEY, m_nTarget, VALUE |
Constructor Summary | |
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IdentityExtractor() Default constructor (necessary for the ExternalizableLite interface). |
Method Summary | |
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boolean |
equals(java.lang.Object o) Compare the IdentityExtractor with another object to determine equality. |
java.lang.Object |
extract(java.lang.Object oTarget) Simply return the passed object. |
int |
hashCode() Determine a hash value for the IdentityExtractor object according to the general Object.hashCode() contract. |
void |
readExternal(java.io.DataInput in) Restore the contents of this object by loading the object's state from the passed DataInput object. |
void |
readExternal(PofReader in) Restore the contents of a user type instance by reading its state using the specified PofReader object. |
java.lang.String |
toString() Provide a human-readable description of this IdentityExtractor object. |
void |
writeExternal(java.io.DataOutput out) Save the contents of this object by storing the object's state into the passed DataOutput object. |
void |
writeExternal(PofWriter out) Save the contents of a POF user type instance by writing its state using the specified PofWriter object. |
Methods inherited from class com.tangosol.util.extractor.AbstractExtractor |
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compare, compareEntries, extractFromEntry, extractOriginalFromEntry |
Methods inherited from class com.tangosol.util.BitHelper |
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countBits, countBits, countBits, indexOfLSB, indexOfLSB, indexOfLSB, indexOfMSB, indexOfMSB, indexOfMSB, rotateLeft, rotateLeft, rotateLeft, rotateRight, rotateRight, rotateRight, toBitString, toBitString, toBitString, toBytes, toBytes, toBytes, toBytes, toInt, toInt, toLong, toLong |
Field Detail |
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public static final IdentityExtractor INSTANCE
Constructor Detail |
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public IdentityExtractor()
To obtain an instance of an IdentityExtractor use the IdentityExtractor.INSTANCE
constant.
Method Detail |
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public java.lang.Object extract(java.lang.Object oTarget)
extract
in interface ValueExtractor
extract
in class AbstractExtractor
oTarget
- an Object to retrieve the value frompublic boolean equals(java.lang.Object o)
equals
in interface ValueExtractor
equals
in interface java.util.Comparator
o
- the reference object with which to comparepublic int hashCode()
Object.hashCode()
contract.hashCode
in interface ValueExtractor
public java.lang.String toString()
toString
in interface ValueExtractor
public void readExternal(java.io.DataInput in) throws java.io.IOException
readExternal
in interface ExternalizableLite
in
- the DataInput stream to read data from in order to restore the state of this objectjava.io.IOException
- if an I/O exception occursjava.io.NotActiveException
- if the object is not in its initial state, and therefore cannot be deserialized intopublic void writeExternal(java.io.DataOutput out) throws java.io.IOException
writeExternal
in interface ExternalizableLite
out
- the DataOutput stream to write the state of this object tojava.io.IOException
- if an I/O exception occurspublic void readExternal(PofReader in) throws java.io.IOException
readExternal
in interface PortableObject
in
- the PofReader from which to read the object's statejava.io.IOException
- if an I/O error occurspublic void writeExternal(PofWriter out) throws java.io.IOException
writeExternal
in interface PortableObject
out
- the PofWriter to which to write the object's statejava.io.IOException
- if an I/O error occurs
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Oracle® Fusion Middleware Java API Reference for Oracle Coherence 12c (12.1.3.0.0) E47890-01 |
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